| Agent Name | Radon |
|---|---|
| CAS Number | 10043-92-2 |
| Formula | Rn |
| Major Category | Physical/Radiation |
| Category | Radionuclides |
| Description | A naturally occurring gas that is colorless, odorless, and chemically inert; [EPA Radionuclides] |
| Sources/Uses | Has been used to treat cancer; [EPA Radionuclides] |
| Comments | Most Important Radionuclide: Radon-222 Source: Decay product of radium-226 in the decay series of uranium-238 Half-Life: 3.8 days Specific Activity: 160,000 Ci/gm Decay Mode: Alpha Critical Organ: Lung Internal Toxicity: High Annual Limit on Intake: 0.1 mCi Radiation Energy (MeV): Alpha 5.49 (100%) + daughters; [See Glossary for references.] See "Radiation, ionizing." |
| Restricted | One in 15 homes in the USA have levels above 4 pCi/l, the level that EPA recommends homeowners not exceed; [EPA Radionuclides] |
| Reference Link | |
| Exposure Assessment | |
| Explanatory Notes | OSHA, MSHA, and ACGIH have set the dose limits for workers exposed to radon daughters at 4 Working Level Months (WLM/year). [ATSDR Case Studies] |
| Reference Link | |
| Links to Other NLM Databases | |
| Health Studies | Human Health Effects from Hazardous Substances Data Bank: |
| Toxicity Information | |
| Chemical Information | |
| Biomedical References | |
| Related Information in HazMap | |
| Diseases | Occupational diseases associated with exposure to this agent: |
| Processes | Industrial Processes with risk of exposure: |
Agent Name
Radon
CAS Number
10043-92-2
Formula
Rn
Major Category
Physical/Radiation
Category
Radionuclides
Description
A naturally occurring gas that is colorless, odorless, and chemically inert; [EPA Radionuclides]
Sources/Uses
Has been used to treat cancer; [EPA Radionuclides]
Comments
Most Important Radionuclide: Radon-222 Source: Decay product of radium-226 in the decay series of uranium-238 Half-Life: 3.8 days Specific Activity: 160,000 Ci/gm Decay Mode: Alpha Critical Organ: Lung Internal Toxicity: High Annual Limit on Intake: 0.1 mCi Radiation Energy (MeV): Alpha 5.49 (100%) + daughters; [See Glossary for references.] See "Radiation, ionizing."
Restricted
One in 15 homes in the USA have levels above 4 pCi/l, the level that EPA recommends homeowners not exceed; [EPA Radionuclides]
Reference Link
Exposure Assessment
Explanatory Notes
OSHA, MSHA, and ACGIH have set the dose limits for workers exposed to radon daughters at 4 Working Level Months (WLM/year). [ATSDR Case Studies]
Reference Link
Links to Other NLM Databases
Toxicity Information
Chemical Information
Biomedical References
Related Information in HazMap