Cover title. Shipping list no.: 99-0719-M. "April 1999." "EPA-300-R-99-002." "Support for this project was provided under EPA contract 68-D4-0098, work assignment V-6, by Science Applications International Corporation, Environmental and Health Sciences Group"--1st prelim. p.
Includes bibliographical references.
Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O.,  1 microfiche : negative.