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	Download
Evaluation of an Annual Simulation of Ozone and Fine Particulate Matter Over the Continental United States: Which Temporal Features are Captured. Hogrefe, C; Jones, J. M; Gilliland, A; Porter, P. S; Gego, E; Gilliam, R.	PB2004106731	2004	10 pages