• Chlorine atoms (Cl) are highly reactive and can strongly influence the abundances of climate and air quality-relevant trace gases. (nature.com)
  • The chemical formula identifies each constituent element by its chemical symbol and indicates the number of atoms of each element found in each discrete molecule of that compound. (niir.org)
  • Phenols substituted with one or more chlorine atoms in any position. (lookformedical.com)
  • I think that water treatment has made the biggest impact on the quality of my beers (besides fermentation temperature control and pitching more yeast). (themadfermentationist.com)
  • Fermentation has been considered the preferred method for producing high-purity lactic acid in the industry over chemical synthesis. (springeropen.com)
  • Traditionally, the separation of lactic acid from fermentation broth was done through chemical precipitation, but the negative implication of gypsum generation on environmental issues (Seong et al. (springeropen.com)
  • The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals. (lookformedical.com)
  • Furthermore, the rise in industrial activities, especially those that use secondary compounds and high amounts of water in their processes, has increased the concentration in water sources of pollutants, such as metals, radioactive materials, halogenated compounds, persistent organic pollutants, and bioaccumulative and toxic chemicals, such as pesticides. (ncsu.edu)
  • 2020) Extraction and phytoanalysis of chemical compounds of Eucalyptus globulus leaf native to Dehloran, Ilam province, Iran by HS-SPME and GC-MS. Advances in Animal and Veterinary Sciences. (ac.ir)
  • The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment. (lookformedical.com)
  • The fish and plant communities in a pond contaminated with polychlorinated biphenyls (PCBs) in East Tennessee, USA, were manipulated to reduce ecological and human-health risk associated with exposure to the chemical contaminants. (bvsalud.org)
  • These discharged substances from industries contaminate waters, and the increase of normal concentrations of microorganism had raised concerns, leading to the generation of regulations that would enhance public health and improve water quality. (ncsu.edu)
  • Lactic acid has become one of the most important chemical substances used in various sectors. (springeropen.com)
  • Methyl chloride also has suitable freezing and boiling points to permit, respectively, low temperature polymerization and effective separation from the polymer and unreacted monomers. (allindianpatents.com)
  • Uncontrolled release of a chemical from its containment that either threatens to, or does, cause exposure to a chemical hazard. (lookformedical.com)
  • As a result, current state-of-the-art air quality models do not typically implement such chemistry, and therefore, cannot reproduce the observed high daytime Cl 2 levels in polluted regions 7 , 22 . (nature.com)
  • Typically, the polymerization process extensively uses methyl chloride at low temperatures, generally lower than -90°C, as the diluent for the reaction mixture. (allindianpatents.com)
  • Temperature, diluent polarity, and counterions affect the chemistry of propagation. (allindianpatents.com)
  • Formulation is a key process in the overall life cycle so that products are delivered that is of the right quality, at a competitive cost, and is made available within the specified time scale. (niir.org)
  • In addition, global warming has led to an increase in temperature of water, which has affected the normal lifecycles of bacteria and algae, mainly by increasing the duration of bloom seasons. (ncsu.edu)
  • The total amount of a chemical, metal or radioactive substance present at any time after absorption in the body of man or animal. (lookformedical.com)
  • AH receptors are identified by their high-affinity binding to several carcinogenic or teratogenic environmental chemicals including polycyclic aromatic hydrocarbons found in cigarette smoke and smog, heterocyclic amines found in cooked foods, and halogenated hydrocarbons including dioxins and polychlorinated biphenyls. (lookformedical.com)
  • The World Health Organization (WHO) has provided recommendations for the levels of each contaminant, and these can be found in the Guidelines for Drinking-water Quality, 2011 (World Health Organization 2014). (ncsu.edu)
  • As water quality is a global concern, the use of natural and sustainable materials is fundamental to obtain high value products that can remediate water systems without generating other pollution sources or require extra energy inputs or high side costs. (ncsu.edu)
  • The effects of initial pH, electrolytic voltage, electrolyte concentration, initial phenol concentration and particle electrode dosage on the performance of the three-dimensional (3D) electrocatalytic oxidation in phenol degradation were investigated. (mdpi.com)
  • The particle electrodes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Brunauer Emmett Teller (BET), thermogravimetric test and linear sweep voltammetry (LSV), which proved that the metal oxide was successfully loaded on the granular activated carbon and exhibited high electrocatalytic activity and thermal stability. (mdpi.com)
  • The resistance table gives an overview of the chemical stability of the most important plastics used for luminaire construction. (regiolux.de)
  • The demand for leather garments is determined primarily by income and fashion, while fashion particularly influences the changing demand for specific types of leather. (cloudaccess.net)
  • LED can also be sensitive to chemical influences. (regiolux.de)
  • The results showed that under the optimal conditions, the removal rates of phenol and chemical oxygen demand (COD) were 99.65% and 67.16%, respectively. (mdpi.com)
  • If in practice the ambient temperature strongly differs (e.g for cold stores or workshops with process heat), we should be contacted for specifying to what extent the selected luminaires can be approved for the corresponding temperature conditions. (regiolux.de)
  • I think that water treatment has made the biggest impact on the quality of my beers (besides fermentation temperature control and pitching more yeast). (themadfermentationist.com)
  • The laboratory carries out analytical quality control activities, in the environmental field, in the context of the construction of infrastructural works and environmental monitoring, for public and private bodies. (tecnopiemonte.com)
  • We perform physical, chemical and mechanical analyses that allow us to characterise the different products used in construction, such as concrete, steels, bricks, aggregates. (tecnopiemonte.com)
  • The chemical and physical properties are summarized in Table I . TCDD is a colorless crystalline solid at room temperature. (cdc.gov)
  • Run-away reactions at high temperature, in which excess TCDD was produced, have occurred at TCP production sites in the United States and elsewhere. (cdc.gov)
  • The fastest growing end-use sector in the leather industry has been leather upholstery, which accounted for about one-third of the world's high-quality bovine leather production in 1990. (cloudaccess.net)
  • The ceramic laboratory has instruments capable of analysing the quality of the raw materials and their correct use in the formulations required by ceramic production. (tecnopiemonte.com)