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AIR CLEANER PURIFIER TYPES
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ALLERGEN TESTS for BUILDINGS
ASBESTOS IDENTIFICATION IN BUILDINGS
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FLOOR TILE ASBESTOS IDENTIFICATION
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MOLD ACTION GUIDE - WHAT TO DO ABOUT MOLD
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MOLD DETECTION & INSPECTION GUIDE
MOLD EXPERT, WHEN TO HIRE
MOLD RELATED ILLNESS GUIDE
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MVOCs & MOLDY MUSTY ODORS
NOISE / SOUND DIAGNOSIS & CURE
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PET ALLERGENS / PET DANDER
PET STAINS & MARKS in BUILDINGS
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PVC - VINYL BUILDING PRODUCTS
RADON HAZARD TESTS & MITIGATION
SAFETY HAZARDS GUIDE
SAFETY HAZARDS & INSPECTIONS
METHANE GAS HAZARDS
SEPTIC SYSTEM ODORS
SEWAGE BACKUP TEST & CLEANUP
SEWER GAS ODORS
SMELL PATCH TEST to Track Down Odors
STAIN DIAGNOSIS on BUILDING EXTERIORS
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SULPHUR & SEWER GAS SMELL SOURCES
UFFI UREA FORMALDEHYDE FOAM INSULATION
URETHANE FOAM Deterioration, Outgassing
VINYL CHLORIDE HEALTH INFO
VOCs VOLATILE ORGANIC COMPOUNDS
WATER ODORS, CAUSE CURE
Radon gas hazards in buildings: health effects of radon, how radon levels should be measured, and how to correct unsafe indoor radon gas levles. This article includes a review of the impact of radon gas contamination levels in air or water on real estate sales and property values. We include a table of risks comparing radon to other health and safety hazards and we provide links to eight detailed articles that will accurately and fully inform you about radon gas, the risks, and the remedies.
Green links show where you are. © Copyright 2014 InspectApedia.com, All Rights Reserved.ENVIRONMENTAL HAZARDS - INSPECT, TEST, REMEDY for our full list of environmental hazard identification and remedy related to buildings.As detailed in Best Practices Guide to Residential Construction:
Radon is a colorless, odorless gas released from the breakdown of uranium and radium, which is found in rocks and soil and sometimes in water. The gas enters the house primarily through cracks and gaps in the foundation, floor drains, and sumps, and concentrations build up indoors. Radon can also enter the home through well water and be released during showering or other uses. In rare cases, it is found in masonry building materials. Radon is thought to be the second leading cause of lung cancer in the United States, after smoking (Table 7-6).
Radon is drawn into buildings by the stack effect and by depressurization from mechanical equipment. During warm weather when the stack effect is reduced and buildings are often well-ventilated, indoor radon levels are usually one-third or more lower. Also, levels in the basement are typically over twice the level on the first floor.
Radon gas breaks down into short-lived decay products that can be inhaled either unattached or attached to other particles in the air and penetrate deeply into the lungs. According to its 2003 Assessment of Risks from Radon in Homes, the EPA estimates that radon causes about 20,000 lung cancer deaths annually in the U.S.
This makes radon the second leading cause of lung cancer in the United States, where an estimated 1 out of 15 homes has elevated levels. The cancer typically occurs 5 to 25 years after exposure, and the risk goes up dramatically if the person is also a smoker (see Table 7-6, Lung Cancer Risk from Radon Exposure, below).
-- Adapted with permission from Best Practices Guide to Residential Construction.
See Radon Enviro-Scare for a full discussion of the normal cycle of public fear that accompanies the discovery and publicity of various environmental hazards, including radon gas and see Enviro-Scare, the Cycle of Public Fear for our article about consumer environmental safety worry cycles that change over time.
For a Thorough Background in Radon Hazards, Radon Mitigation, & the History of Radon Concerns in the U.S. also see these articles in PDF form, reprinted/adapted/excerpted with permission from Solar Age Magazine - editor Steven Bliss.
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