TY - BOOK ED - United States. ED - United States. TI - Position paper on regulation of atmospheric sulfates PY - 1975/// CY - Research Triangle Park, North Carolina PB - U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards KW - Air KW - Pollution KW - United States KW - Atmosphere KW - Sulfur compounds KW - Environmental aspects N1 - Title from title screen (viewed on Apr. 19, 2016); "EPA-450/2-75-007."; "September 1975."; CRDP Project record; Includes bibliographical references (pages 81-85); Final report UR - http://purl.fdlp.gov/GPO/gpo67118 ER -