||Air/Superfund national technical guidance study series : evaluation of short-term air action levels for Superfund sites.
||Radian Corp., Austin, TX.;Environmental Protection Agency, Washington, DC. Office of Emergency and Remedial Response.
|| U.S. Environmental Protection Agency,
Air pollution monitoring ;
Hazardous materials ;
Waste disposal ;
Environmental exposure pathway ;
Risk assessment ;
Occupational exposure ;
Government policies ;
Pollution regulations ;
State government ;
Local government ;
Air action levels ;
Short term exposure ;
Reference concentrations ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||305 pages ; 28 cm.
The report summarizes the results of an EPA-sponsored study to compile and evaluate information on short-term air action levels (AALs) used at Superfund sites. Because there is no simple or widely accepted method for estimating the risks of short-term exposures, there are no uniformly accepted short-term air action levels for emissions from Superfund sites. Air action levels have been established in a variety of ways, depending on waste types at the site, state guidelines, the potential for air emissions, cost, and individual project manager discretion. State and local guidelines are often based on occupational exposure limits (e.g., Threshold Limit Values) that have been divided by a safety factor to account for the differences in population and exposure of workers and residents. Some states are adopting other approaches, including the use of U.S. EPA-developed inhalation Reference Concentrations (RfCs).
"Office of Air Quality Planning and Standards"--Cover. "Prepared for: U.S. EPA, Region VI, Air Enforcement Branch ... Dallas, TX." "April 1993." Contract no. 68-DO-0125, Work assignment II-79. "Project was managed by Mr. Mark Hansen of EPA's Region VI office"--Page vii. "EPA-451/R-93-009"--Cover. Document includes  errata sheets. Includes bibliographical references. Microfiche.