The National Air Toxics Information Clearinghouse has been established by the U.S. Environmental Protection Agency's (EPA) Office of Air Quality Planning and Standards for the purpose of facilitating information transfer among Federal, State, and local air quality management agencies. The document has been published as part of that effort. The purpose is to provide State and local agencies and other Clearinghouse users with bibliographic citations of reports and Federal Register notices useful in developing and operating air toxics control programs. The bibliography is published in five volumes plus an index. The index to the Bibliography covers all the reports from 1974 to the present. Under each keyword, report titles are listed for which the keyword has been assigned. Each listing indicates which of the five volumes contains the citation and is followed by an alphanumerical identifier. The identifier is used to locate the citation in the bibliography that is organized in alphabetic, then numeric order in each volume. The current index to the bibliography (Index - 1991, EPA-450/3-91-017) is organized by document type; by pollutant class, name, or CAS number; by source category SIC Code; and by sponsoring agency.

"Prepared for: Nancy Riley, Work Assignment Manager, Emission Standards Division, Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711." "July 1991." EPA contract no. 68-D8-0065. Work assignment no. 3-7. "EPA/450-3-91-017."