Indoor radon. Medical search. Frequent questions

Your story can be short and sweet with a happy ending if you test and, if needed, reduce radon levels in your home. (cdc.gov)
Take action to reduce radon levels and talk to your doctor about any concerns. (cdc.gov)
Overall, for a present value of about $38 billion-a large sum, but just a few percent of the size of the recent economic stimulus package-we could use in-home tests to find the eight million dwellings with levels above 4 pCi/L, and greatly reduce radon levels in every one of them for the next 100 years. (theregreview.org)
The Minnesota Department of Health radon program provides education, outreach and research to reduce radon exposure in the state. (eli.org)
EPA recommends taking action to reduce radon in homes that have a radon level at or above 4 picocuries per liter (pCi/L) of air (a "picocurie" is a common unit for measuring the amount of radioactivity). (cdc.gov)
Natural ventilation in any type of house is only a temporary strategy to reduce radon. (cdc.gov)
A radon mitigation system is designed to reduce radon concentrations in the indoor air of a building. (oregon.gov)
Some techniques will prevent radon from entering a building, while others reduce radon levels after it has entered. (oregon.gov)
Many radon mitigation companies in Oregon reduce radon levels by using a method called sub-slab depressurization (see diagram on left-hand side of page). (oregon.gov)
If the air in your home has not been tested, test your home for radon in air before considering how to reduce radon levels. (healthvermont.gov)
At or above 4,000 pCi/L , take action to reduce radon levels in your home. (healthvermont.gov)
An aeration system uses a fan to reduce radon in water. (healthvermont.gov)

The EPA's Consumer's Guide to Radon Reduction has provided a checklist to help guide you when evaluating and comparing contractors and also specific questions to ask. (oregon.gov)

Radon (Rn) is a noble gas produced by the radioactive decay of radium, found in uranium ores, phosphate rock, and a number of common minerals (1). (orst.edu)
This is known from studies of workers exposed to radon in mines, primarily uranium miners, and from tests on laboratory animals (2). (orst.edu)
Radon isotopes are formed naturally through the radioactive decay of uranium or thorium. (cdc.gov)
Uranium and thorium decay to other elements such as radium (a solid), which in turn decays into radon (a gas). (cdc.gov)
Radon is a naturally occurring byproduct of the radioactive decay of elements such as uranium, radium, and thorium, which are found in ores and rocks throughout the world, particularly granite, shale, and limestone. (theregreview.org)
The estimates come from several large studies of excess lung cancer in U.S. and German uranium miners exposed to somewhat higher levels than those found in homes in high-radon areas. (theregreview.org)
Since thorium and uranium are two of the most common radioactive elements on Earth, while also having three isotopes with half-lives on the order of several billion years, radon will be present on Earth long into the future despite its short half-life. (wikipedia.org)
The buildup of radon gas occurs naturally as Uranium decays and it seeps into buildings through cracks and gets trapped inside. (radonaway.com)
Radon is a naturally occurring radioactive gas produced by the breakdown of uranium in rocks and soils. (tn.gov)
Radon is produced when uranium, a heavy metal present in most soils and rock formations, begins to break down. (shiptons.ca)
Radon levels will be dependent on the uranium content of locally occurring rock formations and soils. (shiptons.ca)
Radon is a naturally occurring radioactive gas that is created as part of the natural radioactive decay chain of uranium. (cdc.gov)
Radon is a radioactive gas that forms naturally when uranium, thorium, or radium, which are radioactive metals break down in rocks, soil and groundwater. (cdc.gov)
Radon comes from the decay of uranium, which is naturally found in the Earth's crust. (healthvermont.gov)
Radon can get into your drinking water if your well is drilled into or near natural rock formations that contain uranium. (healthvermont.gov)
A study of radon emanation from waste rock at Northern Territory uranium mines / by G. Chesney Mason, Graeme Elliott and Tiang Hong Gan. (who.int)
Average uranium bedrock concentration in Swedish municipalities predicts male lung cancer incidence rate when adjusted for smoking prevalence: Indication of a cumulative radon induced detriment? (lu.se)
Dive into the research topics of 'Average uranium bedrock concentration in Swedish municipalities predicts male lung cancer incidence rate when adjusted for smoking prevalence: Indication of a cumulative radon induced detriment? (lu.se)

While radon may be one of the most serious and dangerous indoor air pollutants, it is not the only air contaminant that can cause health problems. (radonmidwest.com)
Closed windows and reduction of outdoor air ventilation can lead to an increase of naturally occurring indoor pollutants, like radon gas. (radonaway.com)
The health effect from indoor air pollutants, such as radon are sometimes not felt for years. (radonaway.com)
Poor ventilation can trap indoor air pollutants and contribute to indoor air hazards. (ezbreathe.com)
Regular maintenance, proper ventilation, the use of air purifiers, and making informed choices about household products can significantly reduce the risks associated with indoor air pollutants. (ezbreathe.com)
Allergens, as well as indoor and outdoor pollutants can irritate and mimic symptoms of illness. (nationalradondefense.com)
At National Radon Defense, our AirAdvice test can help detect these levels, as well as other air pollutants. (nationalradondefense.com)
This will help you keep track of the levels of pollutants in your indoor air and take steps to improve it if necessary. (luftiaq.com)
Take the necessary precautions to minimize the risks of indoor air pollutants in your home. (healthvermont.gov)
Studies suggest that indoor concentrations of air pollutants are increasing, driven by factors such as the types of chemicals in home products, inadequate ventilation, hotter temperatures, and higher humidity. (nih.gov)
Studies on the assessment of indoor air pollutants in terms of concentration and characterization in the Gulf Cooperation Council (GCC) countries have been recently carried out. (degruyter.com)
This review assesses the health effects associated with indoor air pollution exposures in GCC, including other air pollutants (siloxanes, flame retardants, synthetic phenolic antioxidants) which were not explored in a previous study. (degruyter.com)
It was revealed that there is a lack of human health assessment studies on most indoor air pollutants in almost all GCC countries, except the United Arab Emirates, Kingdom of Saudi Arabia and Kuwait, where few attempts were made for some specific pollutants. (degruyter.com)
This can then concentrate indoor pollutants, such as chemical emissions and tobacco smoke, and affect IAQ. (buildings.com)
A lower building ventilation rate will tend to provide enhanced protection against some pollutants from outdoors, but reduced ventilation rates tend to cause concentrations of pollutants that originate primarily from indoor sources to increase. (buildings.com)
According to studies conducted by the EPA, indoor air pollutants may be at levels two to five times higher than outdoor levels. (pathnet.org)
The EPA has a list of the most common indoor air pollutants. (howstuffworks.com)
Josh Peterson, Planet Green "10 Common Indoor Air Pollutants" 3 January 2012. (howstuffworks.com)
Making sure that your building is well-ventilated and getting rid of pollutants can improve the quality of your indoor air. (medlineplus.gov)

The radon concentration in dwellings varied from 13 ± 6 Bq.m -3 to 185 ± 23 B. qm -3 , with an average of 73 ± 15 Bq.m -3 .The radon concentration in the Murree Formation, Nagri Formation, river terrace and Dhok Pathan Formation were 89.7 ± 16.5, 72 ± 15, 68.5 and 69 Bq.m -3 , respectively. (radioprotection.org)
The measured gamma dose rates have a weak positive correlation with indoor radon concentration. (radioprotection.org)
In determining the risk of radon in homes or offices with the same concentration, assessors must consider not only the average level of radon, but also the occupants and their lifestyles. (cdc.gov)
Radon is measured in picocuries per liter of air or pCi/L. The average concentration of radon in outdoor air is 0.4 pCi/L. The average radon concentration in the indoor air of America's homes is about 1.3 pCi/L The U.S. Environmental Protection Agency (EPA) has established 4 pCi/L as an action level in which one should initiate measures to reduce the amount of radon in a home. (tn.gov)
In approximately 7 percent of these structures , the radon concentration is above the level considered safe. (shiptons.ca)
If radon gas is emitted by structural materials in the building, and from these only, doubling the rate of ventilation halves the radon concentration. (swegon.com)
The results show an important indoor radon concentration in the measured tunnels, several times higher than levels recommended by United States Environmental Protection Agency (US-EPA). (edu.in)
The recommendation will be to mitigate the radon concentration levels, in order to avoid unnecessary exposition to the people. (edu.in)
Results: The mean radon concentration in UK homes is 21 becquerels per cubic metre (Bq/m3). (ox.ac.uk)
estimated arithmetic mean of radon concentration estimated percentage of dwellings with annual mean levels of radon above 200 Bq/m3 estimated percentage of dwellings with annual mean levels of radon above 400 Bq/m3. (who.int)

In all of the studies it is impossible to perform radon measurements in some of the former residences. (europa.eu)
Radon measurements were made using the passive time-integrated method using Kodak CN-85 Solid-State Nuclear Track Detectors. (radioprotection.org)
In order to detect and safeguard all radon-affected homes, measurements are needed in virtually all detached houses and apartments with ground contact or constructed using pre-1975 aerated concrete. (swegon.com)
Measurements were carried out for a full year to obtain an accurate estimate of exposure unbiased by short-term fluctuations in radon levels because of weather conditions or changes in ventilation. (cal-iaq.org)
In this paper, the radon measurements along the Pyramid tunnels are presented. (edu.in)
Espinosa, G. & Gammage, R.B. Measurements methodology for indoor radon using passive track detectors. (edu.in)
It is important to stress that the radon measurements were not made with a standardized protocol in all countries. (who.int)
The findings suggest that fault mapping and in situ gamma ray measurements, coupled with analysis of foundation types and delineation of hot spots, may be used to prioritize areas for radon screening. (cdc.gov)
Such model could be used to predict future lung cancer cases based on geological survey maps of bedrock U as an alternative to laborious indoor radon measurements, and to discern what future lung cancer rates can be expected for a population nearing zero smoking prevalence, with and without radon prevention. (lu.se)

Radon is a naturally-occurring radioactive gas that changes into other radioactive substances, called progeny. (cdc.gov)
Naturally occurring sources of radiation include radon and other radioactive elements in air, water, soil, or building materials, as well as cosmic radiation from space. (cdc.gov)
The source of radon in homes is from naturally occurring (geologic) sources. (cdc.gov)
Radon (Rn) is a naturally occurring colorless, odorless, tasteless radioactive gas that occurs in differing atomic structure with the same atomic number but different atomic mass, called isotopes. (cdc.gov)
Although arising naturally, radon and radon-derived 'daughters' (including 214 Po, 218 Po) can concentrate within the built environment to levels typically not observed in nature. (nature.com)
According to Health Canada and the National Research Council, radon is a radioactive gas that occurs naturally inside homes and buildings throughout Canada. (shiptons.ca)
Public Health Tracking Program (EPHTP) to investigate the merits (opportunity, cost and value) of developing public health indicators associated with residential exposure to naturally occurring radon gas. (cdc.gov)
Because radon comes naturally from the earth, people are always exposed to it. (cdc.gov)
Radon is a naturally occurring radioactive gas. (healthvermont.gov)
Transmission occurs through exposure to naturally occurring agents (e.g., free-living ameba or radon) or contact with contaminated air, mud, soil, or other outdoor or indoor surfaces or objects not attributable to foodborne, waterborne, person-to-person, or animal contact transmission, as defined for this project. (cdc.gov)

To prevent elevated levels of radon in indoor air, there are a number of effective safeguards. (swegon.com)
Health Canada says safe levels of radon in indoor air are 200 becquerels per cubic metre or less. (yahoo.com)

It is possible to test for radon in buildings, and to use techniques such as sub-slab depressurization for mitigation. (wikipedia.org)
How can I test for radon in my home? (tn.gov)
You can order a radon in water test kit for $25 from the Health Department Laboratory, or you can use another certified drinking water lab to test for radon. (healthvermont.gov)

Radon mitigation systems should be considered if radon levels test over 4pCi/L. RadonAway has network of Certified Radon Professionals who are trained and licensed to install and service radon mitigation systems. (radonaway.com)
Radon mitigation systems can be installed to reduce exposure. (ezbreathe.com)
Standard radon mitigation systems are usually effective within 24 hours. (oregon.gov)

However, background levels of radon in outdoor air are generally quite low, about 0.003 to 2.6 picocuries of radon per liter of air (2). (orst.edu)
The results of the 1992 EPA National Residential Radon Survey estimated that 1 in 15 homes had an elevated radon level (i.e., a level at or above the EPA action level of 4 picocuries per liter of air). (cdc.gov)
Approximately 6 million homes in the United States have radon levels above 4 picocuries per liter (pCi/L), which is the remediation level EPA recommends. (cdc.gov)
From these studies, EPA developed an " action level " of home radon exposure of 4 pCi/L (trillionths of a curie of radiation from radon per liter of air). (theregreview.org)
The Health Department has set an advisory level for radon in water of 4,000 pCi/L (picocuries per liter) . (healthvermont.gov)

Smoking Modifies the Association Between Radon Exposure and Incident Ischemic Stroke: The REGARDS Study. (bvsalud.org)

Your first step is to prevent radon from leaking inside your structure. (shiptons.ca)

We examined how North American residential radon exposure varies by modern environmental design, occupant behaviour and season. (nature.com)
A small workgroup of interested states--Maine, Maryland, Missouri, New Mexico, Oregon, Washington, and Wisconsin--met on a monthly basis to discuss their efforts and progress in determining the availability, quality, and compatibility of residential radon test data. (cdc.gov)
Statewide study of residential radon concentrations was carried out by the California Department of Health Services (CDHS) in -89. (cal-iaq.org)
In, a focused survey of residential radon levels was carried out in 862 residences of Ventura and northwestern Los Angeles. (cal-iaq.org)
Currently, CDHS is conducting a survey of residential radon levels in 1,000 homes in the Sierra Nevada region, with preliminary results expected in early. (cal-iaq.org)
Although biologically plausible, research of residential radon exposure in relation to stroke risk is scarce. (bvsalud.org)
The results were generally consistent in the sensitivity analysis when using radon measures from state / Environmental Protection Agency residential radon survey . (bvsalud.org)
Findings from this study suggest that the association between residential radon exposure and incidence of ischemic stroke varies by smoking status and may be prominent in never- smokers . (bvsalud.org)

This device uses sophisticated sensing technology to detect contaminants such as carbon monoxide, radon, and nitrogen dioxide. (luftiaq.com)
Your indoor air may be polluted by things like radon, carbon monoxide (CO), secondhand smoke, and asthma triggers like mold and other harmful air particles. (healthvermont.gov)

As well, areas that stay colder annually for longer can show higher radon buildup inside structures due to a lack of ventilation. (shiptons.ca)
With negative pressure in a ventilation system, the risk of radon infiltration increases. (swegon.com)
For protection against ground radon, you need a balanced ventilation system, meaning the same amount of mechanical supply air as extract air. (swegon.com)
The solution for most homes is to install an air-to-air heat exchange ventilation system for venting spent, radon-contaminated air. (swegon.com)
In addition, the influence of ventilation conditions due to different indoor environments was also investigated. (degruyter.com)
Measured ventilation levels and indoor air velocities in most buildings failed to meet the American Society of Heating, Refrigerating and Air-conditioning Engineers (ASHRAE) threshold limits of 8 L/s/p and 0.18-0.25 m/s, respectively. (degruyter.com)
Energy is required to condition the temperature and humidity of ventilation air, so individuals and organizations may seek to save energy by reducing the rate of ventilation of indoor spaces. (buildings.com)

This client works in the construction industry too and he is fully aware about the importance of having a radon mitigation system. (radonmidwest.com)

There is no "safe" level of exposure to radon. (eli.org)
It is often the single largest contributor to an individual's background radiation dose, but due to local differences in geology, the level of exposure to radon gas differs from place to place. (wikipedia.org)

According to EPA and other federal agencies, indoor exposure to radon gas results in an estimated 20,000 lung cancer deaths in the U.S. every year, making radon the second leading cause of lung cancer and the leading cause among non-smokers. (eli.org)

At the time, an estimated 5.8 million homes had an elevated radon level. (cdc.gov)

Radon is a radioactive gas that comes from the soil. (tn.gov)

Radon is a colorless, odorless, and tasteless gas and therefore is not detectable by human senses alone. (wikipedia.org)
Radon gas is tasteless, colorless and odorless. (tn.gov)
Radon is a colorless, odorless gas that can seep into homes through the ground. (ezbreathe.com)

Radon causes around 21,000 lung cancer deaths in the United States every year and is the second leading cause of lung cancer. (cdc.gov)
Thus for nonsmokers, radon exposure is the leading cause of lung cancer death, period (EPA 2009b). (cdc.gov)
We have known for over 30 years that widespread exposure to the ionizing radiation given off by indoor radon gas is likely to be a major cause of lung cancer in the U.S., and we know how to reduce exposures cost-effectively. (theregreview.org)
Radon is an odorless and invisible gas that is the leading cause of lung cancer among nonsmokers, and has been found in every state. (radonmidwest.com)
According to the United States Environmental Protection Agency (EPA), radon is the second most frequent cause of lung cancer, after cigarette smoking, causing 21,000 lung cancer deaths per year in the United States. (wikipedia.org)
While radon is the second most frequent cause of lung cancer, it is the number one cause among non-smokers, according to EPA policy-oriented estimates. (wikipedia.org)
Radon gas has been identified as the second leading cause of lung cancer, second only to cigarette smoking. (tn.gov)
This makes radon the second most common cause of lung cancer in the world and the leading cause of lung cancer among Canadians who do not smoke. (shiptons.ca)
Radon is the second-most common cause of lung cancer after smoking. (swegon.com)
Prolonged exposure to radon is the second leading cause of lung cancer after smoking. (ezbreathe.com)
Radon is an invisible, odourless, tasteless gas that is the leading cause of lung cancer in non-smokers. (yahoo.com)

Even if you already have an existing radon mitigation system, Radon Defense Midwest can check it out and make sure it's still keeping your home safe! (radonmidwest.com)

Main outcome measures: Estimated number of deaths from lung cancer related to indoor radon, lifetime risks of death from lung cancer before and after various potential interventions to control radon, the cost per quality adjusted life year (QALY) gained from different policies for control of radon, and the potential of those policies to reduce lung cancer mortality. (ox.ac.uk)

Since radon and its progeny are present together in rock, soil, water, air, and construction materials, you will be exposed to the low-level radiation they give off just by being near them. (cdc.gov)
As radon undergoes radioactive decay, it gives off radiation and becomes another radioactive element. (cdc.gov)
This radiation gives a radiation dose to people when they are exposed to radon. (cdc.gov)
The radiation dose from radon and its progeny is measured in terms of the energy that they impart to tissue (in units called gray or rem for public exposure, or working levels for occupational exposure). (cdc.gov)
To learn more and stay involved throughout the week, sign up for the Radiation and Health Newsletter, follow @CDCEnvironment on Twitter and visit CDC's Radon website . (cdc.gov)
Human-made buildings can artificially concentrate radioactive radon gas of geologic origin, exposing occupants to harmful alpha particle radiation emissions that damage DNA and increase lung cancer risk. (nature.com)
With a background in radon and radiation safety, we are capable of evaluating and reporting on radon gas levels, how they compare with EPA standards and whether a mitigation solution is called for. (emfsurveydallas.com)
Radon gas in buildings is the no. 1 radiation source, but is also the factor that we can do most to manage! (swegon.com)
Environmental and occupational exposure to air pollution, radon, UV radiation, chemical carcinogens, asbestos and other risks contributes significantly to the high burden of cancer in Europe. (europa.eu)
Exposure to air pollution, carcinogenic chemicals, radon, UV radiation and second-hand smoke together may contribute over 10% of the cancer burden in Europe. (europa.eu)
This report summarises the scientific evidence on the associations between selected known environmental and occupational risks for cancer in Europe, including air pollution, second-hand smoke, chemicals in the environment and environmental radiation (including indoor radon). (europa.eu)
These exogenous risk factors include lifestyle-related ones (e.g. tobacco use, obesity, diet and alcohol consumption), some infections, environmental and occupational exposure to cancer-causing chemicals, UV radiation, indoor radon and air pollution. (europa.eu)
Global organizations, including the World Health Organization (WHO), the Environmental Protection Agency of the United States (US-EPA) and the European Atomic Energy Community (EURATOM) recognize that radon gas as one of the main contributors to environmental radiation exposure for humans. (edu.in)
Note: The Health Department discourages the use of GAC systems to remove radon because the radon collected on the filter could create a radiation hazard. (healthvermont.gov)
Empirical Bayesian Kriging was used to predict gamma radiation at each radon test site. (cdc.gov)

The Tennessee Department of Health and the Tennessee Radon Program support the standing of the U.S. Environmental Protection Agency that every home should be tested in order to know that home's radon level. (tn.gov)
To fully understand your radon risk, it is important to know your home's radon in air result too. (healthvermont.gov)

Radon causes around 21,000 lung cancer deaths in the United States each year. (cdc.gov)
Radon is responsible for about 21,000 lung cancer deaths every year. (tn.gov)

It is not known if radon causes health effects other than to the lung. (orst.edu)
2. Radon, ASTDR Public Health Statement, December 1990. (orst.edu)
In the radon health study organised in Brittany-Vendée by CEA/IPSN, in close collaboration with the University of Brest and INSERM, 270 lung cancer cases matched each with 2 controls have been registrated. (europa.eu)
This Public Health Statement is the summary chapter from the Toxicological Profile for Radon . (cdc.gov)
This public health statement tells you about radon and the effects of exposure to it. (cdc.gov)
What are the health effects of radon? (cdc.gov)
In addition, some populations are more at risk of adverse health effects from radon exposure. (cdc.gov)
Theory holds that everyone is at risk from radon exposure, and this health risk increases linearly with dose. (cdc.gov)
The World Health Organization (WHO) estimates that radon causes between 6% and 15% of lung cancers worldwide (WHO 2005). (cdc.gov)
In Minnesota, two in five homes have radon levels that pose a significant health risk, and nearly 80% of the state's counties are rated as high radon potential zones. (eli.org)
Radon is an invisible, natural, odorless, and toxic gas that can lead to health complications if not taken care of. (radonmidwest.com)
Prolonged exposure to hazardous levels of radon can lead to serious health issues, even cancer. (radonmidwest.com)
Thus, hazardous radon exposure is largely an anthropogenic environmental health issue. (nature.com)
Thus, radon exposure represents a readily preventable cause of the most lethal and common cancer type, and is a priority area of public health intervention and cancer prevention. (nature.com)
Unlike all other intermediate elements in the aforementioned decay chains, radon is, under standard conditions, gaseous and easily inhaled, and therefore a health hazard. (wikipedia.org)
The Tennessee Department of Health and the Tennessee Radon Program are unable to verify the validity of the testing protocols or the physical location where the test kit was reported to have been conducted. (tn.gov)
Fortunately, radon does not generally present a health risk outdoors because it is diluted in the open air. (tn.gov)
How much radon is dangerous to my health? (tn.gov)
Report by CA Department of Health Services, Indoor Air Quality Section, Berkeley, CA. Survey of Residential Indoor and Outdoor Radon Concentrations in California, Liu K-S, Hayward SB, Girman JR, et al. (cal-iaq.org)
Indoor air quality can significantly impact our health, and there are a myriad of hidden dangers that may go unnoticed. (ezbreathe.com)
In conclusion, indoor air hazards are a real and often underestimated threat to our health and well-being. (ezbreathe.com)
However, toxic home radon is one of the leading causes of lung cancer in the U.S. and can cause serious health issues for you, your family, and your pets. (nationalradondefense.com)
The effects of hazardous radon levels can mimic allergies or the natural worsening of a pre-existing health issue such as asthma, the common cold, or the flu. (nationalradondefense.com)
An indoor air quality expert can inspect the whole home, provide a detailed examination, and create a plan to reduce indoor irritations and health risks. (nationalradondefense.com)
What's less obvious and a greater threat to health is airborne mold spores that are polluting your indoor air. (secondnature.com)
Environmental health researchers study how indoor air quality affects human health and well-being. (nih.gov)
Both short- and long-term exposure to indoor air pollution can cause a range of health issues, including respiratory diseases, heart disease, cognitive deficits, and cancer. (nih.gov)
As one prominent example, the World Health Organization estimates 3.8 million people worldwide die every year from illnesses attributable to harmful indoor air from dirty cookstoves and fuel. (nih.gov)
CDC's Radon Communication Toolkit is designed for environmental and public health professionals to use to increase awareness and understanding of radon, its health effects, and the importance of testing for radon among the communities they serve. (cdc.gov)
Reducing radon exposure is the first step to reducing health risks. (oregon.gov)
Commonly reported plausible health effects potentially associated with indoor air pollution were related to respiratory symptoms and sick building syndrome (SBS). (degruyter.com)
Accordingly, a study and analysis of the indoors radon concentrate in the Cholula Pyramid contributes to understand the Radon dynamic inside of the Pyramid tunnels and to evaluate the radiological health risk to visitors, archaeologists, anthropologists and persons who spend extended periods inside the Pyramid. (edu.in)
Health concerns: Is radon harmful to my health? (healthvermont.gov)
Re-test your drinking water for radon after any treatment system is installed to make sure levels are below the health advisory level. (healthvermont.gov)
3 Global Health Observato ry http://www.who.int/gho/phe/en/ (accessed 18 March 2015). (who.int)
WHO handbook on indoor radon : a public health perspective / edited by Hajo Zeeb, and Ferid Shannoun. (who.int)

But, considering all the exposures nationwide, EPA estimates that about 21,000 lung cancers per year-about one-sixth of all lung cancers-in the U.S. are caused by radon exposure, and, of course, lung cancer is notoriously difficult to treat successfully. (theregreview.org)
He wants to protect his family from high exposures from radon and fully understands that this is a necessity in each home. (radonmidwest.com)
It is recognized that radon exposures below 4 pCi/L still contribute to the risk of lung cancer. (cal-iaq.org)
The Distribution of Lifetime Cumulative Exposures to Radon for California Residents, Liu KS, Chang YL, Hayward SB, Gadgil AJ and Nero AJ,, Journal of Exposure Analysis and Environmental Epidemiology. (cal-iaq.org)

Inhalation of indoor radon has been recognized as the largest contributor to the total effective dose received by human beings. (radioprotection.org)
However, unlike tobacco use, radon inhalation is not addictive and effective testing and mitigation techniques exist 15 . (nature.com)

Unlike the gaseous radon itself, radon daughters are solids and stick to surfaces, such as airborne dust particles, which can cause lung cancer if inhaled. (wikipedia.org)
As radon gas breaks down, it emits high-energy alpha particles. (tn.gov)
As you inhale this radon-laden air, those small particles injure the fragile cells lining the inside of your lungs. (shiptons.ca)
This can be done through strategic placement of a radon vent pipe to ensure radon particles never have the opportunity to enter your indoor air supply at home or at work. (shiptons.ca)
The U.S. Environmental Protection Agency and the Surgeon General's office estimate radon is responsible for more than 20,000 lung cancer deaths each year in the U.S. When you breathe in radon, radioactive particles from radon gas can get trapped in your lungs. (cdc.gov)
The result of this study will be useful in modeling not only the radon lung dosimetry but also the deposition of all vapor and nanometer size particles whose lung deposition is dominated by diffusion. (cdc.gov)

Although soils all over the country contain some levels of radon, the highest concentrations are along the Appalachian mountain range, in the Upper Midwest and Great Plains, and the northern Rockies. (theregreview.org)
When radon is released from soils and rocks, it quickly begins to decay, emitting radioactive airborne particulate matter. (shiptons.ca)

Why Do I Need a Professional to Mitigate Radon? (radonaway.com)
In this article, we'll explore the various indoor air hazards and ways to mitigate their effects to create a safer and healthier living environment. (ezbreathe.com)
Oregon does not have state regulations that govern how companies mitigate for radon. (oregon.gov)

Learn how a subslab depressurization system captures and contains radon before it enters the living space. (hgtv.com)
The radon system is an active sub-slab depressurization system. (nachi.org)
The Snodgrasses installed a $3,000 sub-slab depressurization system, which essentially just moves radon-infused air outside the home. (yahoo.com)

Its solubility equation is as follows, χ = exp ⁡ ( B / T − A ) , {\displaystyle \chi =\exp(B/T-A),} where χ {\displaystyle \chi } is the molar fraction of radon, T {\displaystyle T} is the absolute temperature, and A {\displaystyle A} and B {\displaystyle B} are solvent constants. (wikipedia.org)
The unattached fraction of radon daughters that reached the tracheobronchial region of human airway deposits efficiently in tracheobronchial region because of its high diffusion coefficient. (cdc.gov)

Epidemiological studies have shown a clear link between breathing high concentrations of radon and incidence of lung cancer. (wikipedia.org)
You can view a map that shows areas nationwide and per province where there are known higher concentrations of radon. (shiptons.ca)

Many houses and buildings have been constructed right on top of radon emitting rocks. (orst.edu)
In indoor locations, such as homes, schools, or office buildings, levels of radon and daughters are generally higher than outdoor levels (2). (orst.edu)
Radon is a gas that can build up in homes and buildings putting people at risk. (cdc.gov)
Radon is heavier than air, so worrisome concentrations are almost always confined to the lowest levels of homes and apartment buildings. (theregreview.org)
In addition to promoting testing and mitigation of high radon levels in existing buildings, the Department created the Minnesota Gold Standard Radon Resistant Builder Program to encourage builders in Minnesota to incorporate active radon control systems in new home construction. (eli.org)
When radon enters buildings through cracks or other openings in the foundation or slab, it becomes concentrated indoors. (eli.org)
11,727 residential buildings were radon-tested using multiple approaches coupled to geologic, geographic, architectural, seasonal and behavioural data with quality controls. (nature.com)
In Sweden, if the radon content of all buildings measured as having a radon level exceeding 200Bq/m3 is reduced, we will ultimately be able to prevent around 200 lung cancer cases a year. (swegon.com)
As buildings become more airtight and energy efficient, actively managing indoor air quality becomes more important. (buildinggreen.com)
People can be exposed to radon primarily from breathing radon in air that comes through cracks and gaps in buildings and homes. (cdc.gov)
Radon levels are susceptible to change with modifications to buildings or the renewal of the building stock, or the efficiency of regional or national action programmes. (who.int)

The statewide survey showed that about 0.8% (approximately 100,000) of California homes are expected to have annual average radon levels exceeding the U.S. EPA action level. (cal-iaq.org)

The elements that radon changes into are called radon daughters or radon progeny. (cdc.gov)
Regional deposition of unattached radon progeny (polonium-218) in tracheobronchial region. (cdc.gov)

Your state radon control officer, radon mitigation (reduction) contractor, and healthcare providers may be woven into your story as heroes. (cdc.gov)
This webinar features two speakers representing national and state-level radon risk reduction activities and was held during Radon Awareness Week 2023. (cdc.gov)
When should I install a radon reduction system? (cdc.gov)
The passive system approach to radon reduction relies on the convective flow of air upward in a vent pipe to exhaust the radon gas. (eli.org)
Most experts agree, however, that significantly greater radon reduction is achieved through use of an "active" system, which adds a fan to draw radon from the soil into the stack. (eli.org)
The Minnesota Gold Standard Radon Resistant Builder Program works with builders to go beyond the requirements of the state building code and incorporate an active radon control system to maximize radon reduction in new homes. (eli.org)
Homes with long-term concentrations measured at or above the action level are recommended for radon reduction. (cal-iaq.org)
The cost will depend on the size and design of your home, and which radon reduction methods are needed. (oregon.gov)

Radon daughters are often attached to dust, and you are exposed to them primarily through breathing (2). (orst.edu)
Long-term exposure to radon and radon daughters in air increases your chances of getting lung cancer. (orst.edu)
The decay of radon produces many other short-lived nuclides, known as "radon daughters", ending at stable isotopes of lead. (wikipedia.org)

These conclusions are likely to apply to most developed countries, many with higher mean radon concentrations than the UK. (ox.ac.uk)

For more information on testing your home, check with your state radon office or call the National Radon Hotline at 1-800-SOS-RADON. (cdc.gov)
Contact your state radon office for a list of qualified contractors in your area and for information on how to fix radon problems yourself. (cdc.gov)

There are several ways to reduce or remove radon from a home. (tn.gov)

I have sketched out an idea to solve the national radon problem, in perpetuity, for a fairly modest sum of money. (theregreview.org)
An important function of this group was to identify the core data elements that would be collected by a national radon database. (cdc.gov)
Representatives from both groups came together to determine if the EPHTN could serve as an appropriate platform for the national radon database. (cdc.gov)
Keep your home healthy this flu season with helpful tips from National Radon Defense ! (nationalradondefense.com)

To estimate radon exposure, studies have examined various risk factors, but limited information exists pertaining to the confluent impact of housing characteristics and geology. (cdc.gov)

Well water that contains radon may increase the level of radon in a home. (healthvermont.gov)

This means that the radon content when we take a shower increases significantly. (swegon.com)
Breathing air with radon increases the risk of getting lung cancer. (healthvermont.gov)
Smoking significantly increases the risk of lung cancer from radon. (cdc.gov)
Breathing in radon increases your risk of getting lung cancer over the course of your lifetime. (healthvermont.gov)

Anyone can get lung cancer from breathing in high levels of radon over time. (cdc.gov)
Read the story of Lindi Campbell, who was diagnosed with lung cancer and later discovered high #radon levels in her home. (cdc.gov)
EPA estimates that exposure to high radon levels is the leading environmental cause of death in the United States (EPA 2003). (cdc.gov)
But, of the eight million homes in the U.S. where radon levels are likely to be especially high, only about one-quarter have ever been tested, even though the test now costs less than $40. (theregreview.org)
In our house in central New Jersey, radon levels in the basement were reduced from about 8 pCi/L to less than 1 pCi/L, after the previous owners installed a system that pipes air from under the basement floor and exhausts it through a port high on the outside wall. (theregreview.org)
Such a program could be greatly accelerated if every state had a law requiring radon testing and disclosure of results as a condition of every home sale, or at least for those in high-radon counties. (theregreview.org)
Regression analyses indicates that the modern North American Prairie residential environment displays exceptionally high and worsening radon exposure, with more recent construction year, greater square footage, fewer storeys, greater ceiling height, and reduced window opening behaviour all associated with increased radon. (nature.com)
According to the EPA, any building in any state can have high radon levels. (radonaway.com)
The only way to know if your home has high levels of radon is to test. (tn.gov)
Persons who smoke and live in a home with elevated radon levels are at a very high risk to develop lung cancer. (tn.gov)
Healthy Canadians estimates that a Canadian non-smoker who is exposed to high radon levels has a 1 in 20 chance of developing lung cancer. (shiptons.ca)
However, if you suspect you may have high radon levels inside your structure, three months is far too long to wait when you can get professional test results back in three days. (shiptons.ca)
These results confirmed the magnitude of high radon homes found in earlier limited studies and another statewide radon survey by CDHS and U.S.EPA using short-term monitors. (cal-iaq.org)
Radon testing kits are readily available and can help determine if your home has high radon levels. (ezbreathe.com)
If you smoke and live in a home with high radon levels, you increase your risk of developing lung cancer. (cdc.gov)
Having your home tested is the only effective way to determine whether you and your family are at risk of high radon exposure. (cdc.gov)
The U.S. Department of Housing and Urban Development [1 MB] recommends additional actions you can take to reduce high radon levels in your home and protect yourself from an increased risk of lung cancer. (cdc.gov)
Current policy identifying and remediating existing homes with high radon levels is, however, neither cost effective (cost per QALY gained £36 800) nor effective in reducing lung cancer mortality. (ox.ac.uk)
Policies involving remedial work on existing homes with high radon levels cannot prevent most radon related deaths, as these are caused by moderate exposure in many homes. (ox.ac.uk)
Radon is a gas that is everywhere but can accumulate in certain homes to dangerous levels that can increase your risk of causing lung cancer,' says Lindsay, who lives with her husband Craig, the mayor of High River, and their young son in the southern Alberta town. (yahoo.com)
Goodarzi said one Albertan each day is diagnosed with radon-induced lung cancer, and one in six homes in Western Canada have dangerously high radon levels. (yahoo.com)
He's asking people to sign up for the study and test their homes - not just to discover if they have high radon levels, but to help researchers learn more about the problem. (yahoo.com)
The good news is for those who find high radon levels in their homes - it's an easy fix. (yahoo.com)

As different types (open and closed) of radon detectors are used by the radon laboratories of the involved countries, quality control tests in the radon chamber at the university of Gent, as well as side-by-side inter-comparisons in real house conditions were organised at regular intervals. (europa.eu)
From the observations made it became clear that, in a pooling on a larger scale, much attention will also have to be paid to the (differences in) response of the different types of radon detectors under epidemiological field conditions. (europa.eu)
The usual method of measuring radon in indoor air is by means of small track-etch detectors. (swegon.com)

abstract = "Bedrock U has been used as a proxy for local indoor radon exposure. (lu.se)

In most cases, radon entering the home through water is a small risk compared with radon entering your home from the soil. (tn.gov)
a missing one-way flow valve, water trap, or other control device installed in or on the discharge line to prevent outside air from entering the system while allowing water to flow out of the system when a radon mitigation system is designed to draw soil gas from a perimeter drain tile loop that discharges water through a drain line to daylight or to a soak-away. (nachi.org)
pipes not supported or not secured in a permanent manner so as to prevent their downward movement to the bottom of suction pits or sump pits, or into the soil beneath an aggregate layer under a slab to prevent blockage of air flow into the bottom of the radon vent pipes. (nachi.org)
Any home, school, workplace property that sits on the soil is potentially at risk for radon. (yahoo.com)
Radon may be present in both soil and water. (healthvermont.gov)
Soil is the most common source of radon in your home. (healthvermont.gov)

In order to obtain a precise estimate about the risk of indoor radon over a wide range of exposure levels, it will be necessary to perform a pooled analysis of different studies. (europa.eu)
The principal objective consists in estimating the risk of indoor radon exposure with sufficient precision by means of the case-control method. (europa.eu)
Exposure to #radon is another important risk factor. (cdc.gov)
Radon Toxicity: Who Is at Risk of Radon Exposure? (cdc.gov)
Identify the estimated risk of lung cancer from radon exposure for persons who smoke cigarettes as compared with those who have never smoked. (cdc.gov)
Everyone is exposed to radon, but some populations described in the literature are at higher risk of exposure to increased radon levels. (cdc.gov)
The risk of lung cancer from radon exposure is estimated at between 10 to 20 times greater for persons who smoke cigarettes as compared with those who have never smoked. (cdc.gov)
The added risk is unclear regarding medical exposure, which can exceed that from radon. (cdc.gov)
the higher the radon levels, the greater the risk. (eli.org)
Building radon resistant homes is a key preventive strategy for reducing radon risk. (eli.org)
This challenges the utility of seasonal correction values for establishing dosimetry in risk estimations, and suggests that radon-attributable cancers are being underestimated. (nature.com)
There is no zone that has no risk factor for radon. (tn.gov)
So long as radon can be dissipated into the outdoor air, it is of minimal risk. (shiptons.ca)
If there is negative pressure, the risk is that the radon will be 'sucked' into the building through cracks in the foundation. (swegon.com)
The risk of cancer from radon exposure compares to. (mo.gov)
People who smoke and are exposed to radon are at a greater risk of developing lung cancer. (cdc.gov)
Your risk of getting lung cancer from radon depends on the level of radon in the air you breathe, how long you are exposed to radon, and whether you smoke. (healthvermont.gov)
Over a lifetime, consuming radon in water also poses a risk of stomach cancer. (healthvermont.gov)
However, the major danger posed by radon in water is the risk of lung cancer when radon from the water is released into the air and you breathe it in. (healthvermont.gov)
This study evaluated the efficacy of housing and geological characteristics to predict radon risk in DeKalb County, Georgia, USA. (cdc.gov)

1. Godish, T. Indoor Air Pollution Control. (orst.edu)
Did you know that an air quality monitor can help you protect yourself against indoor air pollution? (luftiaq.com)
It's a striking statistic given how much focus is put on outdoor air pollution, and hopefully, one that will help shine some light on prevalent Indoor Air Quality (IAQ) issues that most people are not aware of. (secondnature.com)
If you know these risks, you can probably estimate how much indoor air pollution affects your home. (secondnature.com)

Everyone is exposed to environmental radon. (cdc.gov)
At least in the short term, the prospects for reducing levels further look rather bleak, as the President's proposed 2013 budget for the Environmental Protection Agency (EPA) would eliminate funding for radon awareness. (theregreview.org)
The Environmental Protection Agency (EPA) formed the Radon State Data Exchange (RSDX) to better coordinate the collection and aggregation of radon data. (cdc.gov)
Climate change can amplify existing indoor environmental problems and introduce new ones, according to researchers. (buildings.com)
The results showed that indoor radon levels were more likely to exceed the action level-4 pCi/L (148Bq/m(3)) designated by the U.S. Environmental Protection Agency-in fault zones, were significantly positively correlated to gamma readings, but significantly negatively related to the presence of a crawlspace foundation and its combination with a slab. (cdc.gov)

Data sources: Epidemiological data on risks from indoor radon and from smoking, vital statistics on deaths from lung cancer, survey information on effectiveness and costs of radon prevention and remediation. (ox.ac.uk)
Man-made mineral fibres and radon / this publication represents the views and expert opinions of an IARC Working Group on the Evaluation of Carcinogenic Risks of Humans, which met in Lyon, 16-23 June 1987. (who.int)

The program has developed a checklist of the elements of the standard, which is to be affixed to the radon vent pipe in a newly built home verifying that the components of the system were properly installed. (eli.org)

Indoor radon data were collected from the dwellings lying on the sedimentary rocks (sandstones, siltstones and clays) of the Murree Formation, Nagri Formation, Dhok Pathan Formation, Mirpur conglomerate and surficial deposits of the Kotli area in Azad Jammu and Kashmir, Pakistan. (radioprotection.org)

Diseases2

Chemicals and Drugs6

Analytical, Diagnostic and Therapeutic Techniques and Equipment1

Phenomena and Processes1

Technology, Industry, Agriculture1

Health Care7

Reduce radon12

Consumer's Guide to Radon Reduction1

Uranium18

Pollutants19

Concentration10

Measurements9

Naturally10

Levels of radon in indoor air2

Test for radon3

Mitigation systems3

Liter5

Association between radon exposure1

Prevent radon1

Residential radon8

Carbon monoxide2

Ventilation7

Having a radon mitigation1

Level of exposure to radon2

Exposure to radon gas1

Elevated radon level1

Radioactive gas1

Colorless3

Cause of lung cancer11

Existing radon mitigation1

Control of Radon1

Radiation15

Home's radon2

21,000 lung cancer deaths2

Health36

Exposures4

Inhalation2

Particles6

Soils2

Mitigate3

Depressurization system3

Fraction of radon2

Concentrations of radon2

Buildings11

Average radon1

Progeny2

Reduction8

Daughters3

Mean radon1

State radon2

Remove radon1

National radon4

Estimate radon1

Contains radon1

Increases4

High23

Detectors3

Abstract1

Soil6

Risk20

Pollution4

Environmental5

Risks2

Vent pipe1

Dwellings1