||Ozark-Ouachita highlands assessment : air quality /
|| U.S. Dept. of Agriculture, Forest Service, Southern Research Station,
Air quality. ;
Acid deposition. ;
Environmental quality. ;
Ozark Mountains Region. ;
Ouachita Mountains Region (Ark. and Okla.) ;
United States--Ouachita Mountains Region. ;
United States--Ozark Mountains Region.
||USDA GTR SRS-32
||Region 6 Library/Dallas,TX
||xii, 57 pages : illustrations, maps ; 28 cm.
"December 1999." "Report 2 of 5"--Cover. "To limit publication costs, few color maps and figures were used in the Assessment reports. For color versions of some of the Assessment figures and supplemental material, please see the Assessment's home page on the Internet at . The Assessment reports will be online for about 2 years after the date on this publication; then they will be archived"--Page 2 of cover. Includes bibliographical references (pages 49-51).
ch. 1. Major air pollutants -- ch 2. Particulate matter in the air -- ch. 3. Visibility -- Ground-level ozone -- ch. 5. Acid deposition.