Debris resulting from a process that is of no further use to the system producing it. The concept includes materials discharged from or stored in a system in inert form as a by-product of vital activities. (From Webster's New Collegiate Dictionary, 1981)
Residue generated from combustion of coal or petroleum.
A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions.
'Coal mining' is not a medical term, but it refers to the process of extracting coal from the ground by mechanical or manual means.
A by-product of the destructive distillation of coal used as a topical antieczematic. It is an antipruritic and keratoplastic agent used also in the treatment of psoriasis and other skin conditions. Occupational exposure to soots, tars, and certain mineral oils is known to be carcinogenic according to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985) (Merck Index, 11th ed).
A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.
A diffuse parenchymal lung disease caused by accumulation of inhaled CARBON or coal dust. The disease can progress from asymptomatic anthracosis to massive lung fibrosis. This lung lesion usually occurs in coal MINERS, but can be seen in urban dwellers and tobacco smokers.
The ash, dust, gases, and lava released by volcanic explosion. The gases are volatile matter composed principally of about 90% water vapor, and carbon dioxide, sulfur dioxide, hydrogen, carbon monoxide, and nitrogen. The ash or dust is pyroclastic ejecta and lava is molten extrusive material consisting mainly of magnesium silicate. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A plant genus of the family OLEACEAE. Members contain secoiridoid glucosides.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
High temperature destruction of waste by burning with subsequent reduction to ashes or conversion to an inert mass.
The application of heat to raise the temperature of the environment, ambient or local, or the systems for accomplishing this effect. It is distinguished from HEAT, the physical property and principle of physics.
Quartz (SiO2). A glassy or crystalline form of silicon dioxide. Many colored varieties are semiprecious stones. (From Grant & Hackh's Chemical Dictionary, 5th ed)
The contamination of indoor air.
Worthless, damaged, defective, superfluous or effluent material from industrial operations.
Units that convert some other form of energy into electrical energy.
A form of pneumoconiosis caused by inhalation of dust that contains both CARBON and crystalline SILICON DIOXIDE. These foreign matters induce fibrous nodule formation in the lung.
Compounds consisting of two or more fused ring structures.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Any combustible hydrocarbon deposit formed from the remains of prehistoric organisms. Examples are petroleum, coal, and natural gas.
'Mining' in medical terminology is not a commonly used term, but it can refer to the process of extracting or excavating minerals or other resources from the earth, which can have health impacts such as respiratory diseases and hearing loss among workers in the mining industry.
A geographical area of the United States with no definite boundaries but comprising northeastern Alabama, northwestern Georgia, northwestern South Carolina, western North Carolina, eastern Kentucky, eastern Tennessee, western Virginia, West Virginia, western Maryland, southwestern Pennsylvania, southern Ohio, and southern New York.
The art or practice of preparing food. It includes the preparation of special foods for diets in various diseases.
Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES.
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.

Respiratory epithelial cells demonstrate lactoferrin receptors that increase after metal exposure. (1/74)

Human airway epithelial cells can increase expression of both lactoferrin and ferritin after exposure to catalytically active metal. These proteins transport and store metal, with coordination sites fully complexed, and therefore can diminish the oxidative stress. The intracellular transport of lactoferrin results in a transfer of complexed metal to ferritin, where it is stored in a less reactive form. This effort to control the injurious properties of metals would be facilitated by lactoferrin receptors (LfRs) on airway epithelial cells. We tested the hypotheses that 1) LfRs exist on respiratory epithelial cells and 2) exposure to both an air pollution particle, which has abundant concentrations of metals, and individual metal salts increase the expression of LfRs. Before exposure to either the particle or metals, incubation of BEAS-2B cells with varying concentrations of 125I-labeled lactoferrin demonstrated lactoferrin binding that was saturable. Measurement of 125I-lactoferrin binding after the inclusion of 100 micrograms/ml of oil fly ash in the incubation medium demonstrated increased binding within 5 min of exposure, which reached a maximal value at 45 min. Inclusion of 1.0 mM deferoxamine in the incubation of BEAS-2B cells with 100 micrograms/ml of oil fly ash decreased lactoferrin binding. Comparable to the particle, exposure of BEAS-2B cells to either 1.0 mM vanadyl sulfate or 1.0 mM iron (III) sulfate, but not to nickel sulfate, for 45 min elevated LfR activity. We conclude that LfRs on respiratory epithelial cells increased after exposure to metal. LfRs could participate in decreasing the oxidative stress presented to the lower respiratory tract by complexing catalytically active metals.  (+info)

Role of soluble metals in oil fly ash-induced airway epithelial injury and cytokine gene expression. (2/74)

Particulate matter (PM) metal content and bioavailability have been hypothesized to play a role in the health effects epidemiologically associated with PM exposure, in particular that associated with emission source PM. Using rat tracheal epithelial cells in primary culture, the present study compared and contrasted the acute airway epithelial effects of an emission source particle, residual oil fly ash (ROFA), with that of its principal constitutive transition metals, namely iron, nickel, and vanadium. Over a 24-h period, exposure to ROFA, vanadium, or nickel plus vanadium, but not to iron or nickel, resulted in increased epithelial permeability, decreased cellular glutathione, cell detachment, and lytic cell injury. Treatment of vanadium-exposed cells with buthionine sulfoximine further increased cytotoxicity. Conversely, treatment with the radical scavenger dimethylthiourea inhibited the effects in a dose-dependent manner. RT-PCR analysis of RNA isolated from ROFA-exposed rat tracheal epithelial cells demonstrated significant macrophage inflammatory protein-2 and interleukin-6 gene expression as early as 6 h after exposure, whereas gene expression of inducible nitric oxide synthase was maximally increased 24 h postexposure. Again, vanadium (not nickel) appeared to be mediating the effects of ROFA on gene expression. Treatment with dimethylthiourea inhibited both ROFA- and vanadium-induced gene expression in a dose-dependent manner. Corresponding effects were observed in interleukin-6 and macrophage inflammatory protein-2 synthesis. In summary, generation of an oxidative stress was critical to induction of the ROFA- or vanadium-induced effects on airway epithelial gene expression, cytokine production, and cytotoxicity.  (+info)

Residual oil fly ash and charged polymers activate epithelial cells and nociceptive sensory neurons. (3/74)

Residual oil fly ash (ROFA) is an industrial pollutant that contains metals, acids, and unknown materials complexed to a particulate core. The heterogeneous composition of ROFA hampers finding the mechanism(s) by which it and other particulate pollutants cause airway toxicity. To distinguish culpable factors contributing to the effects of ROFA, synthetic polymer microsphere (SPM) analogs were synthesized that resembled ROFA in particle size (2 and 6 microm in diameter) and zeta potential (-29 mV). BEAS-2B human bronchial epithelial cells and dorsal root ganglion neurons responded to both ROFA and charged SPMs with an increase in intracellular Ca(2+) concentration ([Ca(2+)](i)) and the release of the proinflammatory cytokine interleukin-6, whereas neutral SPMs bound with polyethylene glycol (0-mV zeta potential) were relatively ineffective. In dorsal root ganglion neurons, the SPM-induced increases in [Ca(2+)](i) were correlated with the presence of acid- and/or capsaicin-sensitive pathways. We hypothesized that the acidic microenvironment associated with negatively charged colloids like ROFA and SPMs activate irritant receptors in airway target cells. This causes subsequent cytokine release, which mediates the pathophysiology of neurogenic airway inflammation.  (+info)

Variable pulmonary responses from exposure to concentrated ambient air particles in a rat model of bronchitis. (4/74)

Chronic bronchitis may be considered a risk factor in particulate matter (PM)-induced morbidity. We hypothesized that a rat model of human bronchitis would be more susceptible to the pulmonary effects of concentrated ambient particles (CAPs) from Research Triangle Park, NC. Bronchitis was induced in male Sprague-Dawley rats (90-100 days of age) by exposure to 200 ppm sulfur dioxide (SO2), 6 h/day x 5 days/week x 6 weeks. One day following the last SO2 exposure, both healthy (air-exposed) and bronchitic (SO2-exposed) rats were exposed to filtered air (three healthy; four bronchitic) or CAPs (five healthy; four bronchitic) by whole-body inhalation, 6 h/day x 2 or 3 days. Pulmonary injury was determined either immediately (0h) or 18 h following final CAPs exposure. The study protocol involving 0 h time point was repeated four times (study #A, November, 1997; #B, February, 1998; #C and #D, May, 1998), whereas the study protocol involving 18 h time point was done only once (#F). In an additional study (#E), rats were exposed to residual oil fly ash (ROFA), approximately 1 mg/ m(3)x6 h/day x 3 days to mimic the CAPs protocol (February, 1998). The rats allowed 18 h recovery following CAPs exposure (#F) did not depict any CAPs-related differences in bronchoalveolar lavage fluid (BALF) injury markers. Of the four CAPs studies conducted (0 h time point), the first (#A) study (approximately 650 microg/m3 CAPs) revealed significant changes in the lungs of CAPs-exposed bronchitic rats compared to the clean air controls. These rats had increased BALF protein, albumin, N-acetyl glutaminidase (NAG) activity and neutrophils. The second (#B) study (approximately 475 microg/m3 CAPs) did not reveal any significant effects of CAPs on BALF parameters. Study protocols #C (approximately 869 microg/m3 CAPs) and #D (approximately 907 microg/m3 CAPs) revealed only moderate increases in the above mentioned BALF parameters in bronchitic rats exposed to CAPs. Pulmonary histologic evaluation of studies #A, #C, #D, and #F revealed marginally higher congestion and perivascular cellularity in CAPs-exposed bronchitic rats. Healthy and bronchitic rats exposed to ROFA (approximately 1 mg/m3) did not show significant pulmonary injury (#E). Analysis of leachable elemental components of CAPs revealed the presence of sulfur, zinc, manganese, and iron. There was an apparent lack of association between pulmonary injury and CAPs concentration, or its leachable sulfate or elemental content. In summary, real-time atmospheric PM may result in pulmonary injury, particularly in susceptible models. However, the variability observed in pulmonary responses to CAPs emphasizes the need to conduct repeated studies, perhaps in relation to the season, as composition of CAPs may vary. Additionally, potential variability in pathology of induced bronchitis or other lung disease may decrease the ability to distinguish toxic injury due to PM.  (+info)

Diminished injury in hypotransferrinemic mice after exposure to a metal-rich particle. (5/74)

Using the hypotransferrinemic (Hp) mouse model, we studied the effect of altered iron homeostasis on the defense of the lung against a catalytically active metal. The homozygotic (hpx/hpx) Hp mice had greatly diminished concentrations of both serum and lavage fluid transferrin relative to wild-type mice and heterozygotes. Fifty micrograms of a particle containing abundant concentrations of metals (a residual oil fly ash) was instilled into wild-type mice and heterozygotic and homozygotic Hp animals. There was an oxidative stress associated with particle exposure as manifested by decreased lavage fluid concentrations of ascorbate. However, rather than an increase in lung injury, diminished transferrin concentrations in homozygotic Hp mice were associated with decreased indexes of damage, including concentrations of relevant cytokines, inflammatory cell influx, lavage fluid protein, and lavage fluid lactate dehydrogenase. Comparable to other organs in the homozygotic Hp mouse, siderosis of the lung was evident, with elevated concentrations of lavage fluid and tissue iron. Consequent to these increased concentrations of iron, proteins to store and transport iron, ferritin, and lactoferrin, respectively, were increased when assayed by immunoprecipitation and immunohistochemistry. We conclude that the lack of transferrin in Hp mice did not predispose the animals to lung injury after exposure to a particle abundant in metals. Rather, these mice demonstrated a diminished injury that was associated with an increase in the metal storage and transport proteins.  (+info)

Oil fly ash-induced elevation of plasma fibrinogen levels in rats. (6/74)

Particulate matter air pollution (PM) has been associated with morbidity and mortality from ischemic heart disease and stroke in humans. It has been hypothesized that alveolar inflammation, resulting from exposure to PM, may induce a state of blood hypercoagulability, triggering cardiovascular events in susceptible individuals. Previous studies in our laboratory have demonstrated acute lung injury with alveolar inflammation in rats following exposure to residual oil fly ash (ROFA), an emission source particulate. In addition, increased mortality has been documented following exposure to ROFA in rats with preexistent cardiopulmonary disease. ROFA's toxicity derives from its soluble metal content, which appears also to drive the toxicity of ambient PM. The present study was conducted to test the hypothesis that exposure of rats to a toxic PM, like ROFA, would adversely alter hemostatic parameters and cardiovascular risk factors thought to be involved in human epidemiologic findings. Sixty-day-old male Sprague-Dawley rats were exposed by intratracheal instillation (IT) to varying doses (0.3, 1. 7, or 8.3 mg/kg) of ROFA, 8.3 mg/kg Mt. Saint Helen's volcanic ash (MSH, control particle), or 0.3 ml saline (SAL, control). At 24 h post-IT, activated partial thromboplastin time (APTT), prothrombin time (PT), plasma fibrinogen (PF), plasma viscosity (PV), and complete blood count (CBC) were performed on venous blood samples. No differences from control were detected in APTT and PT in ROFA-exposed rats; however, ROFA exposure did result in elevated PF, at 8.3 mg/kg only. In addition, PV values were elevated in both ROFA and MSH-exposed rats relative to SAL-control rats, but not significantly. Although no changes were detected in APTT and PT, alteration of important hematologic parameters (notably fibrinogen) through PM induction of an inflammatory response may serve as biomarkers of cardiovascular risk in susceptible individuals.  (+info)

Induction of pulmonary matrilysin expression by combustion and ambient air particles. (7/74)

The molecular mechanism(s) by which chemically complex air pollution particles mediate their adverse health effects is not known. We have examined the ability of combustion and ambient air particles to induce pulmonary matrilysin expression due to the well-documented role of matrix metalloproteinases in tissue injury and repair responses. Rats were exposed to saline, residual oil fly ash (2.5 mg/rat), or ambient air particles (2.5 mg/rat) via intratracheal instillation and examined 3-72 h after exposure. Saline-exposed animals had low levels of matrilysin mRNA, whereas the animals exposed to either complex particle showed an early induction of pulmonary matrilysin gene expression as well as of the 19-kDa activated form of matrilysin. Immunocytochemistry and in situ hybridization analyses identified the alveolar macrophages and monocytes as primary sources of air pollution particle-induced matrilysin expression. Matrilysin gene induction and protein activation by combustion and ambient air particles correlated with the early histopathological changes produced by these particles. These results demonstrate the ability of combustion and ambient air particles to induce pulmonary matrilysin expression and suggest a role for this matrix metalloproteinase in the initiation of lung injury produced by these particles.  (+info)

The Indian Ocean experiment: widespread air pollution from South and Southeast Asia. (8/74)

The Indian Ocean Experiment (INDOEX) was an international, multiplatform field campaign to measure long-range transport of air pollution from South and Southeast Asia toward the Indian Ocean during the dry monsoon season in January to March 1999. Surprisingly high pollution levels were observed over the entire northern Indian Ocean toward the Intertropical Convergence Zone at about 6 degrees S. We show that agricultural burning and especially biofuel use enhance carbon monoxide concentrations. Fossil fuel combustion and biomass burning cause a high aerosol loading. The growing pollution in this region gives rise to extensive air quality degradation with local, regional, and global implications, including a reduction of the oxidizing power of the atmosphere.  (+info)

Waste products, in the context of physiology and medicine, refer to substances that are produced as a result of various metabolic processes within the body's cells but have no further use for the body's normal functioning. These waste materials must be eliminated from the body to maintain homeostasis and prevent toxic accumulation.

Common examples of waste products include:

1. Carbon dioxide (CO2): A byproduct of cellular respiration, which is exhaled through the lungs.
2. Urea: formed in the liver from the breakdown of excess amino acids and proteins, then excreted by the kidneys in urine.
3. Creatinine: a waste product generated from muscle metabolism, eliminated through the kidneys in urine.
4. Water (H2O): A byproduct of various metabolic reactions, excreted as urine or sweat, and lost through respiration and evaporation.
5. Bilirubin: a waste product formed from the breakdown of hemoglobin in red blood cells, eliminated through the bile and feces.
6. Lactic acid: produced during anaerobic metabolism, especially with intense exercise or hypoxia; it can be converted back to pyruvate for energy production or removed by the liver and excreted in urine.
7. Hippuric acid: formed from the conjugation of glycine and benzoic acid, primarily eliminated through urine.
8. Indican: a waste product resulting from the metabolism of tryptophan, excreted in urine after being converted to indigo by intestinal bacteria.
9. Estrogens and androgens: hormonal waste products produced by the gonads and adrenal glands, metabolized and eliminated through urine and feces.

Maintaining the efficient elimination of these waste products is essential for overall health and well-being. Failure to do so can result in various medical conditions, such as kidney or liver failure, that can be life-threatening if left untreated.

Coal ash, also known as coal combustion residuals (CCRs), is the waste that is produced when coal is burned to generate electricity. It is a fine-grained, powdery material that is left over after coal is burned in power plants. Coal ash contains a variety of substances, including heavy metals such as arsenic, lead, mercury, and chromium, which can be harmful to human health and the environment if not properly managed.

Coal ash is typically stored in large ponds or landfills, but it can also be reused in a variety of applications, such as in concrete, wallboard, and other building materials. However, if coal ash is not handled and disposed of properly, it can pose serious risks to the environment and human health. For example, if coal ash ponds or landfills leak or burst, the toxic heavy metals they contain can contaminate water supplies and soil, posing a threat to both wildlife and humans.

It is important for coal ash to be managed in accordance with federal regulations to ensure that it is handled and disposed of in a way that protects public health and the environment. The Environmental Protection Agency (EPA) has established regulations governing the management of coal ash, including requirements for the location, design, and operation of coal ash disposal facilities, as well as standards for the monitoring and reporting of coal ash releases.

I apologize for any confusion, but "coal" is not a medical term. Coal is a black or brownish-black sedimentary rock that is formed from the accumulation and preservation of plant materials, usually in a swamp environment. It is commonly used as a fuel source due to its high carbon content. If you have any questions about medical terminology or health-related topics, I would be happy to help answer them.

Coal mining is the process of extracting coal from the ground. Coal is a fossil fuel that is formed from the accumulation and decomposition of plants over millions of years. It is primarily used as a source of energy for electricity generation, as well as for heating and industrial processes.

There are two main types of coal mining: surface mining and underground mining. Surface mining involves removing the soil and rock above the coal seam to access the coal, while underground mining involves sinking shafts and tunnels into the earth to reach the coal. Both methods have their own set of benefits and challenges, and the choice of which method to use depends on various factors such as the depth and location of the coal seam, the geology of the area, and environmental concerns.

Coal mining can be a dangerous occupation, with risks including accidents, explosions, and exposure to harmful dust and gases. As a result, it is essential that coal miners receive proper training and equipment to minimize these risks and ensure their safety. Additionally, coal mining has significant environmental impacts, including deforestation, habitat destruction, and water pollution, which must be carefully managed to minimize harm.

Coal tar is a thick, dark liquid that is a byproduct of coal manufacturing processes, specifically the distillation of coal at high temperatures. It is a complex mixture of hundreds of different compounds, including polycyclic aromatic hydrocarbons (PAHs), which are known to be carcinogenic.

In medical terms, coal tar has been used topically for various skin conditions such as psoriasis, eczema, and seborrheic dermatitis due to its anti-inflammatory and keratolytic properties. Coal tar can help reduce scaling, itching, and inflammation of the skin. However, its use is limited due to potential side effects such as skin irritation, increased sun sensitivity, and potential risk of cancer with long-term use. Coal tar products should be used under the guidance of a healthcare provider and according to the instructions on the label.

Pneumoconiosis is a group of lung diseases caused by inhaling dust particles, leading to fibrosis or scarring of the lungs. The type of pneumoconiosis depends on the specific dust inhaled. Examples include coal worker's pneumoconiosis (from coal dust), silicosis (from crystalline silica dust), and asbestosis (from asbestos fibers). These diseases are generally preventable by minimizing exposure to harmful dusts through proper engineering controls, protective equipment, and workplace safety regulations.

Anthracosis is a medical condition characterized by the accumulation of carbon particles, primarily from air pollution or coal dust, in the tissues of the lungs. This results in the formation of black deposits, known as anthracotic pigment, on the surfaces of the lung's air sacs (alveoli) and lymph nodes.

Repeated and prolonged exposure to these pollutants can cause inflammation and fibrosis in the lungs, potentially leading to respiratory symptoms such as coughing, wheezing, and shortness of breath. In severe cases, anthracosis may contribute to the development of chronic obstructive pulmonary disease (COPD) or restrictive lung disease.

It is important to note that while anthracosis is often associated with occupational exposure in coal miners and industrial workers, it can also occur in individuals living in urban areas with high levels of air pollution. Smokers are also at an increased risk due to the inhalation of tar and other carbon-based particles present in tobacco smoke.

I'm sorry for any confusion, but "Volcanic Eruptions" are not a medical term or concept. Volcanic eruptions refer to the release of molten rock, ash, and gases from a volcano's opening, or vent, onto the Earth's surface. This is a geological event that occurs due to the movement of tectonic plates and the build-up of pressure within the Earth's crust.

If you have any medical questions or terms you would like me to define, please feel free to ask!

I'm sorry for any confusion, but "Fraxinus" is not a medical term. It is the genus name for ash trees in the plant kingdom. If you have any questions about medical terminology or concepts, I would be happy to try and help answer those for you!

In medical terms, "dust" is not defined as a specific medical condition or disease. However, generally speaking, dust refers to small particles of solid matter that can be found in the air and can come from various sources, such as soil, pollen, hair, textiles, paper, or plastic.

Exposure to certain types of dust, such as those containing allergens, chemicals, or harmful pathogens, can cause a range of health problems, including respiratory issues like asthma, allergies, and lung diseases. Prolonged exposure to certain types of dust, such as silica or asbestos, can even lead to serious conditions like silicosis or mesothelioma.

Therefore, it is important for individuals who work in environments with high levels of dust to take appropriate precautions, such as wearing masks and respirators, to minimize their exposure and reduce the risk of health problems.

'Incineration' is not typically used as a medical term, but it does have relevance to the field of medicine and public health. It generally refers to the process of destroying something, usually waste, through extreme heat and combustion. In the medical context, incineration is often discussed in relation to the disposal of healthcare waste, including infectious materials, sharps, and pharmaceutical products. Proper incineration can help reduce the volume of waste, destroy harmful components, and prevent the spread of infection. However, it's important to note that improper incineration practices can also release toxic emissions into the environment, posing risks to public health.

In the context of medical terminology, "heating" generally refers to the application of heat to an area of the body for therapeutic purposes. This can be done using various methods such as hot packs, heating pads, warm compresses, or even heated wax. The goal of applying heat is to increase blood flow, reduce pain and muscle spasms, and promote healing in the affected area. It's important to note that excessive heating or application of heat to sensitive areas should be avoided, as it can lead to burns or other injuries.

I'm sorry for any confusion, but "quartz" is not a medical term. Quartz is a mineral that is one of the most common minerals on Earth. It is found in many different types of rocks and is made up of silicon dioxide (SiO2). It is often used in electronics and watches because of its piezoelectric properties, which means it can generate an electric charge when subjected to pressure or stress.

It does not have any direct relation with medical field, although there are some Quartz based equipment like quartz crystal microbalance (QCM) sensors that are used in medical research for the detection of biomolecules and pathogens.

Indoor air pollution refers to the contamination of air within buildings and structures due to presence of particles, gases, or biological materials that can harmfully affect the health of occupants. These pollutants can originate from various sources including cooking stoves, heating systems, building materials, furniture, tobacco products, outdoor air, and microbial growth. Some common indoor air pollutants include particulate matter, carbon monoxide, nitrogen dioxide, sulfur dioxide, volatile organic compounds (VOCs), and mold. Prolonged exposure to these pollutants can cause a range of health issues, from respiratory problems to cancer, depending on the type and level of exposure. Effective ventilation, air filtration, and source control are some of the strategies used to reduce indoor air pollution.

I'm sorry for any confusion, but "industrial waste" is not a term that has a medical definition. Industrial waste is a term used to describe waste produced by industrial activities, such as manufacturing, mining, and construction. It can include a wide variety of materials, including chemicals, metals, soil, and water. Proper management and disposal of industrial waste are important for protecting the environment and public health. If you have any questions related to healthcare or medical terminology, I'd be happy to try to help answer those!

I'm sorry for any confusion, but "power plants" is not a term used in medical definitions. It is a term commonly used to refer to industrial facilities that generate and distribute power, typically in the form of electricity. If you have any questions related to medicine or health, I would be happy to try to help answer those!

Anthracosilicosis is a type of pneumoconiosis, which is a lung disease caused by inhaling dust particles. This particular form of the disease results from exposure to both coal mine dust (anthracotic dust) and silica dust. The inhalation of these dusts can lead to inflammation, fibrosis (scarring) and nodular lesions in the lungs.

The symptoms of anthracosilicosis can be quite varied, but they often include coughing, shortness of breath, and decreased lung function. The severity of the disease depends on the duration and intensity of exposure to the dusts. While there is no cure for anthracosilicosis, treatments can help alleviate symptoms and slow progression. These may include lifestyle changes, such as quitting smoking, and various medical interventions, such as bronchodilators, oxygen therapy, or in some cases, lung transplantation. Prevention is key, and occupational health and safety measures should be implemented to minimize exposure to harmful dusts in high-risk industries like coal mining and construction.

Medical definitions typically focus on the relevance of a term to medicine or healthcare, so here's a medical perspective on polycyclic compounds:

Polycyclic compounds are organic substances that contain two or more chemical rings in their structure. While not all polycyclic compounds are relevant to medicine, some can have significant medical implications. For instance, polycyclic aromatic hydrocarbons (PAHs) are a type of polycyclic compound that can be found in tobacco smoke and certain types of air pollution. PAHs have been linked to an increased risk of cancer, particularly lung cancer, due to their ability to damage DNA.

Another example is the class of drugs called steroids, which include hormones like cortisol and sex hormones like testosterone and estrogen. These compounds are polycyclic because they contain several interconnected rings in their structure. Steroid medications are used to treat a variety of medical conditions, including inflammation, asthma, and Addison's disease.

In summary, while not all polycyclic compounds are relevant to medicine, some can have important medical implications, either as harmful environmental pollutants or as useful therapeutic agents.

Occupational exposure refers to the contact of an individual with potentially harmful chemical, physical, or biological agents as a result of their job or occupation. This can include exposure to hazardous substances such as chemicals, heavy metals, or dusts; physical agents such as noise, radiation, or ergonomic stressors; and biological agents such as viruses, bacteria, or fungi.

Occupational exposure can occur through various routes, including inhalation, skin contact, ingestion, or injection. Prolonged or repeated exposure to these hazards can increase the risk of developing acute or chronic health conditions, such as respiratory diseases, skin disorders, neurological damage, or cancer.

Employers have a legal and ethical responsibility to minimize occupational exposures through the implementation of appropriate control measures, including engineering controls, administrative controls, personal protective equipment, and training programs. Regular monitoring and surveillance of workers' health can also help identify and prevent potential health hazards in the workplace.

Fossil fuels are not a medical term, but rather a term used in the field of earth science and energy production. They refer to fuels formed by natural processes such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes even hundreds of millions of years.

There are three main types of fossil fuels: coal, petroleum, and natural gas. Coal is primarily composed of carbon and hydrogen, and it is formed from the remains of plants that lived hundreds of millions of years ago in swamps and peat bogs. Petroleum, also known as crude oil, is a liquid mixture of hydrocarbons and other organic compounds, formed from the remains of marine organisms such as algae and zooplankton. Natural gas is primarily composed of methane and other light hydrocarbons, and it is found in underground reservoirs, often in association with petroleum deposits.

Fossil fuels are a major source of energy for transportation, heating, and electricity generation, but their combustion also releases large amounts of carbon dioxide and other pollutants into the atmosphere, contributing to climate change and air pollution.

I'm sorry for any confusion, but "mining" is not a term that has a widely accepted medical definition. It is most commonly associated with the extraction of minerals from the earth in the field of geology and mining engineering. If you have any questions related to health or medicine, I would be happy to try to help answer those for you!

The Appalachian Region is a geographic and cultural region in the eastern United States that stretches from southern New York to northern Mississippi. It is defined by the Appalachian Regional Commission (ARC) as including 420 counties across 13 states: Alabama, Georgia, Kentucky, Maryland, Mississippi, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, and West Virginia. The ARC defines the region based on its unique economic and social challenges, as well as its distinct cultural heritage.

The Appalachian Region is characterized by a diverse landscape that includes the Appalachian Mountains, valleys, plateaus, and coastal plains. It has a rich history of coal mining, agriculture, and manufacturing, but has also faced significant economic challenges in recent decades due to declines in these industries. The region has higher poverty rates, lower educational attainment levels, and poorer health outcomes compared to the national average.

The medical definition of the Appalachian Region may refer to the unique health challenges that are prevalent in this area. These can include higher rates of chronic diseases such as diabetes, heart disease, and respiratory illnesses due to factors such as poverty, lack of access to healthcare, and environmental exposures related to coal mining and other industries. The region also has a higher rate of opioid addiction and overdose deaths compared to the national average. Public health initiatives and interventions in the Appalachian Region often focus on addressing these specific health disparities and improving overall health outcomes for the population.

"Cooking" is not a medical term, but it generally refers to the process of preparing and cooking food. In a medical or nutritional context, "cooking" may refer to the application of heat to food in order to make it safe and more palatable to eat, as well as to improve its nutritional value and digestibility.

Cooking can also have an impact on the nutrient content of food. For example, cooking certain vegetables can increase their bioavailability, or the amount of a nutrient that is available for absorption by the body. On the other hand, cooking some foods at high temperatures or for long periods of time can lead to the loss of certain nutrients, such as vitamins C and B.

It's important to note that the way food is cooked can also affect its safety. For example, undercooked meat, poultry, and seafood can harbor harmful bacteria, such as Salmonella and E. coli, which can cause foodborne illness. It's essential to cook these foods thoroughly to reduce the risk of infection.

In summary, while "cooking" is not a medical term, it has important implications for food safety, nutrition, and digestion.

Particulate Matter (PM) refers to the mixture of tiny particles and droplets in the air that are solid or liquid in nature. These particles vary in size, with some being visible to the naked eye while others can only be seen under a microscope. PM is classified based on its diameter:

* PM10 includes particles with a diameter of 10 micrometers or smaller. These particles are often found in dust, pollen, and smoke.
* PM2.5 includes particles with a diameter of 2.5 micrometers or smaller. These fine particles are produced from sources such as power plants, industrial processes, and vehicle emissions. They can also come from natural sources like wildfires.

Exposure to particulate matter has been linked to various health problems, including respiratory issues, cardiovascular disease, and premature death. The smaller the particle, the deeper it can penetrate into the lungs, making PM2.5 particularly harmful to human health.

In the context of medical definitions, 'carbon' is not typically used as a standalone term. Carbon is an element with the symbol C and atomic number 6, which is naturally abundant in the human body and the environment. It is a crucial component of all living organisms, forming the basis of organic compounds, such as proteins, carbohydrates, lipids, and nucleic acids (DNA and RNA).

Carbon forms strong covalent bonds with various elements, allowing for the creation of complex molecules that are essential to life. In this sense, carbon is a fundamental building block of life on Earth. However, it does not have a specific medical definition as an isolated term.

In addition, when coal ash is recycled, costs related to coal ash disposal sites are avoided. There are two forms of coal ash ... The particles that remain after burning coal are called coal ash, principally consisting of fly ash and bottom ash. Other coal ... Depending on the type of coal that was burned, the chemical composition found in coal ash can vary. Coal ash obtained from the ... An example of unencapsulated coal ash is distributing the ash on icy roads in the winter. Even though reusing coal ash ...
Dumped into unlined ponds or mines, the toxins from coal ash readily leach into drinking water supplies. ... Coal ash is the hazardous waste that remains after coal is burned. ... Each year, the worlds coal plants generate more than 500 million tons of coal ash. Coal ash contains chemicals like arsenic, ... In some places, the ash is dumped into uncovered pits. In others, it sits behind leaky dams. It poisons the air. It destroys ...
... is produced mainly from burning coal in coal-fired power plants. Two main by-products of coal ash combustion (the ... Fly ash is a very fine, powdery residue from coal-fired plants (like factories). Fly ash is captured in the stack. Onsite coal ... To learn more about coal ash and how EPA regulates it, visit here: https://www.epa.gov/coalash/coal-ash-basicsexternal icon ... Bottom ash is unlikely to be in coal ash ponds because it is typically disposed of immediately after combustion and sent to a ...
... group asks the Green Buildings Council to hold back LEED certification for buildings containing materials made from coal waste ... A leftover product of coal combustion, coal ash (also called fly ash) can contain arsenic, mercury, lead, barium, cadmium, and ... According to the American Coal Ash Association, power plants produced 136 million tons of coal ash in 2008. Nationwide, there ... putting coal ash into our homes, schools, and office buildings. If coal power generators had to responsibly handle their wastes ...
Tests show the new tracer can distinguish between the isotopic signature of lead derived from coal ash and lead that comes from ... Exposure to fly ash from dust, soil or sediments has been linked to numerous diseases and health concerns. ... Scientists have developed a forensic tracer that uses lead isotopes to detect and measure coal fly ash in dust, soil and ... in coal ash ponds, making the coal ash easier to store and limiting the risk of coal ash spills into surface ... ...
... is finally opening up about pollution and structural problems at its other ash ponds nationwide, but the truth may need some ... responsible for a massive coal ash spill in North Carolina last year, ... Specializing in hazardous waste law, Lisa is an expert on coal ash, a toxic byproduct of burning coal that burdens communities ... In a power point presentation, Duke Energy catalogued a long list of coal ash problems at five Indiana coal plants. ...
Protection Agency on Tuesday proposed the nations first federal rules for the disposal of contaminant-laden ash from coal- ... EPA regulation of coal ash as a hazardous waste would make coal industry responsible for the waste it generates, "level the ... He added that if EPA regulated the ash as hazardous waste and required some coal ash storage sites to close, the costs would go ... Coal ash from power plants is held in wet form in lagoons and sent to landfills and other sites, including old mines and ...
And coal fly ash reuse is no joke - for every ton of ash used instead of traditional cement, we prevent a ton of carbon dioxide ... The most recent data on ash stockpiles come from 2014; in that year alone,the US produced 130 million tons of coal ash. To put ... is digging up and hauling away the toxic coal residues two years after one of the worst coal-ash spills in U.S. history. (AP ... The key to making coal fly ash safe to recycle is finding a way to lock in its toxic elements. Products that transform the coal ...
About 5 million cubic yards of ash spilled out of a storage pond, into a river and spoiled hundreds of acres in a riverside ... Finally a positive ruling for those adversely affected by coal power plants. Today a federal judge ruled that the Tennessee ...
If the ponds were low risk, Duke might simply cap the coal ash ponds in place. If high risk, the coal ash would have to be ... In South Carolina, power companies SCE&G and Santee Cooper have said they will dig up coal ash and either put it in their own ... When it comes to deciding what Duke Energy must do with coal ash, the states Department of Environmental Quality is clearly ... A high-risk rating would warrant the most expensive solution, requiring Duke to remove coal ash from the site. Figuring out ...
... coal ash clean up and management. That does not mean the issue is not being addressed. While part of the solution may lie in re ... generating over 102 Million tons of coal ash stored in 33 basins. Today DENR told Duke Power to submit plans for coal ash ... Duke has been dealing with coal ash for 6 decades, operating 14 coal fired plants in North Carolina, ... This map shows where the coal fired plants with coal ash basins are located in NC. ...
Crackdown on coal ash The crazy quilt of regulations governing coal ash disposal across the United States got a new patch this ... It turns out this was because the EPA allowed TVA to rate its own facilities - and it ranked all of its coal ash impoundments ... The crazy quilt of regulations governing coal ash disposal across the United States got a new patch this week when North ... The EPAs list of the nations high-hazard coal ash dumps included 44 in all - none of them in Tennessee. ...
... to help domestic thermal power plants use higher grade coal and bring down the cost of generation. ... EAC has suggested use of imported coal with higher ash content of up to 25% ... EAC has suggested use of imported coal with higher ash content of up to 25% to help domestic thermal power plants use higher ... However, by restricting the ash content up to 12 per cent, the source of coal gets restricted to a particular origin and thus ...
BMI and RES demonstrated that developing a process for recovering REEs from domestic coal ash sources is possible. ... Acid digestion is a method of making metals easier to separate by first dissolving a coal ash sample into a solution by adding ... Recovering REEs from Coal Fly Ash Using Acid Digestion and Electrowinning Processes June 22, 2020 ... Recovering REEs from Coal Fly Ash Using Acid Digestion and Electrowinning Processes ...
... coal combustion waste sites and said it will develop new regulations to ensure that incidents like Decembers colossal coal ash ... Coal EPA Considers Regulating Coal Ash Ponds. Responding to Democratic calls to bring coal ash impoundments under federal ... Reclassify Coal Ash?. In particular, Democrats have challenged previous EPA rulings that toxic residues in coal ash are too ... New Federal Rules for Coal Ash Storage on the Horizon By the end of this year, U.S. power plants with coal ash surface ...
... announced plans to strengthen enforcement of the coal combustion residuals (CCR) rule amid the first round of impoundment ... include finalizing a federal permitting program for the disposal of coal ash and establishing regulations for legacy coal ash ... EPA also announced its intentions to notify coal ash facilities suspected of noncompliance with the CCR rule due to inadequate ... with the goal of preventing environmental releases of hazardous coal ash constituents (e.g., mercury, cadmium, arsenic). It set ...
... Regulation: Revisited. Posted on April 5, 2018Jacqueline MietusCategories Uncategorized ... Coal Ash Regulation. Posted on October 10, 2017Jacqueline MietusCategories Uncategorized2 Comments on Coal Ash Regulation ... Power plants generate a residue after burning coal called coal ash, more formally known as coal combustion residuals (CCRs). In ... Tags CCRCoal AshCoal Combustion ResidualscomplianceEnergyEnvironmental Protection AgencyEPA ...
25.1 million for groundwater contamination from coal ash at the Sutton Plant near Wilmington. ... Duke Energy Hit With Record $25 Million Coal Ash Fine. Duke Energy Hit With Record $25 Million Coal Ash Fine. March 12, 2015 ... Coal ash is the waste formed from burning coal in power plants to make electricity. The ash is stored in giant ponds near power ... In December 2014 the EPA published the first federal regulations on coal ash. Although weaker than North Carolinas Coal Ash ...
The Environmental Protection Agency has proposed expanding regulation of coal combustion residuals to inactive power plant ... coal ash surface impoundments and landfills. The 2015 rule requires active power plants to safely dispose of coal ash, ... the Environmental Protection Agency proposed a rule that would require the safe management of coal ash dumped at legacy ash ... These inactive facilities, known as ash ponds, collectively hold 500 million tons of coal combustion residuals (CCR) that ...
Across Alabama, there are more than 116 million tons of toxic coal ash in unlined pits next our waterways at nine different ... Coal ash is a toxic byproduct of coal-burning power plants. ... Tell Alabama Politicians to Clean Up Coal Ash Coal ash is a ... Their plans consist of "capping" the coal ash in unlined pits, often in or very near groundwater. Leaving ash in place does not ... These coal ash pits threaten our waters, and we should not continually live with a threat created by the utilities when there ...
Tagged: Blogs, coal ash commission, Issue: 2016-01-27, Jim Hunt, Jim Martin, News, Pat McCrory, Phil Berger, Thom Tillis ... NC Supremes rule for McCrory over GOP legislators in Coal Ash Commission spat by Danny Hooley 01/29/2016. 02/08/2023. ... The North Carolina Supreme Court ruled Friday that legislators overstepped their authority in 2014 when they created a Coal Ash ... Home ยป NC Supremes rule for McCrory over GOP legislators in Coal Ash Commission spat ...
In less than a month, the question of how to dispose of coal combustion waste has gone from a largely ignored issue to a ... In less than a month, the question of how to dispose of coal combustion waste has gone from a largely ignored issue to a ...
Rule leaves critical gaps in protection from toxic coal ash ... Illinois has over 90 aging coal ash pits with coal ash ... Coal ash dams are usually built from a combination of soil and ash and often impound millions of tons of toxic coal ash and ... Unsafe disposal of coal ash into the nations more than 1,400 coal ash waste dumps has contaminated more than 200 rivers, lakes ... The devastating coal ash spill at Kingston, TN in December 2008. One billion gallons of toxic coal ash spilled from the ...
... to Roll Back Rules to Control Toxic Ash from Coal Plants - #CleanWaterRules(Image by usepagov) Details DMCA ... E.P.A. to Roll Back Rules to Control Toxic Ash from Coal Plants. Quicklink Submitted By Susan Lee Schwartz 1 comment, 6 series ... "This year, the E.P.A. proposed a number of separate amendments to the coal-ash regulations, including extending by 18 months ... by environmental groups found that more than 90 percent of the 265 coal plants required to test their groundwater near coal ash ...
Posted inCoal Ash, Energy, Environment Victims of the TVA coal ash spill speak out by The Center for Public Integrity February ... Victims of the TVA coal ash spill in eastern Tennessee speak out about the disaster during a recent trip to Washington, D.C. ... h1,Victims of the TVA coal ash spill speak out,/h1, ,p class=byline,by The Center for Public Integrity, Center for Public ... Victims of the TVA coal ash spill speak out. by The Center for Public Integrity, Center for Public Integrity February 17, 2009 ...
Clean Energy / News & Views / Articles from 1995 to 2012 / In Rogers City, Strong Criticism of Coal Ash Proposal ... the other would allow the company to change the location of its coal ash landfill to another part of the quarry that was not ... Opponents of the coal plant-or at least of locating a landfill in a quarry so close to inland and Great Lakes water-far ... The coal plant, proposed by the Wolverine Power Cooperative, has enjoyed strong local support since it was first unveiled in ...
US-4537599-A chemical patent summary.
The fight continues to try and halt a controversial plan to expand a South Georgia landfill so that more coal ash can be ... Republic Services wants to bring more coal ash by rail into the Broadhurst Landfill in Wayne County. Coal ash that some studies ... "I really worry about the whole rail spur in general because of the amount of, not only coal ash but municipal waste that can be ... Environmental group urges Wayne County Commissioners to take action against coal ash expansion. ...

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