Recent Additions

Below is a summary of revisions and updates and items added to EPA's Radiation Protection Web site in the last six months.

July

• July 22, Inhalation Slope Factor for Radon in HEAST Tables Revised [about pdf format] 12,983 kB
  the new slope factor uses new inhalation rate, equilibrium for decay products, and risk coefficient
• July 9, 2004 Ruling of the U.S. Court of Appeals for the District of Columbia Circuit regarding Petitions for Review brought against certain Yucca Mountain-related Actions of the Environmental Protection Agency, the Department of Energy, and the Nuclear Regulatory Commission
  

June

• EPA's Preliminary Comments On DOE's Recertification Compliance Application
• Radiation Information System for Cleanup Sites
  provides descriptive information on radiation cleanup sites

May

• Radiation Information System
  basic information about certain facilities regulated by EPA for radiation and radioactivity
 

February

• MARSSIM meeting notes for December 9, 2003 meeting added.
• New Document Available at Risk Assessment Publications:
  In support of EPA’s Assessment of Risks from Radon in Homes, the Agency sponsored a study, which estimated the radiation doses delivered to target cells in the lung from radon progeny under indoor and mine exposure conditions.

January

• MARSSIM meeting information, including February meeting and notes from previous meetings at Meetings. Information on new MARSSIM training sessions at Training.

November

• EPA Issues Request for Comment: Improving the Safe Management and Disposal of 'Low-Activity' Radioactive Waste

October

• EPA Assessment of Risks from Radon in Homes - EPA updates its assessment of health risks from indoor radon, which the National Academy of Sciences (NAS) has determined to be the second leading cause of lung cancer after cigarette smoking. This risk assessment is based primarily on results from a recent study of radon health effects (BEIR VI) by the NAS, with some technical adjustments and extensions.
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• Comment Opportunity: Disposal of "Low-Activity" Radioactive Waste
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