Approaches To Risk Management In Remediation Of by National Council on Radiation Protection

By National Council on Radiation Protection

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Extra resources for Approaches To Risk Management In Remediation Of Radioactively Contaminated Sites: Recommendations of the National Council on Radiation Protection and Measurements ... : Issued October 15, 2004 (Ncrp R

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An emphasis on 10–4 as the appropriate risk goal for remediation has been retained in later guidance on remediation of radioactively contaminated sites discussed below. , up to about 3 × 10–4) may be considered acceptable if justified on the basis of site-specific conditions (Clay, 1991). In 1997, EPA developed specific guidance on establishing remediation levels at radioactively contaminated CERCLA sites (Luftig and Weinstock, 1997). 1. 19 EPA guidance documents are not a substitute for applicable laws or regulations, and they are not themselves regulations.

B License may be terminated using alternate criteria if (1) annual TEDE from all man-made sources combined, excluding medical exposures, would not exceed 1 mSv, (2) restrictions to minimize exposures have been employed to the extent practical, and (3) doses are ALARA. c EPA regulations do not distinguish between unrestricted and restricted release of a site, but use of institutional controls to restrict future uses at contaminated sites can be an important means of achieving goals for protection of the public.

S. population would be no more than a few per year per million persons (EPA, 1976; 1977). , it was not based on an a priori judgment by EPA that cancer risks from ingestion of radium in drinking water could not exceed a particular level. , risks per unit activity intake to an average individual in a population of all ages) developed by EPA in Federal Guidance Report No. 7 × 10–4, respectively. As noted previously, the drinking water standard for gross alpha-particle activity, including 226Ra but excluding radon and uranium, was intended for use as a screening tool to allow rapid identification of sources that contain high levels of 226Ra and, thus, is not risk-based.

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