National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Title/Authors	Accession Number	Publication Year	Page Count
Air Quality Data for Metals 1975 from the National Air Surveillance Networks. Rhodes, R. C; Fair, D. H; Frazer, J. E; Long, S. J; Loseke, W. A.	PB293106	1978	117 pages
Air Quality Criteria for Lead. Volume 2.	PB87142394	1986	348 pages
Air Quality Criteria for Lead. Volume 1.	PB87142386	1986	276 pages
Air Quality Criteria for Lead. Volumes 1 through 4. Review Draft.	PB84144591	1983	1436 pages