Vols. for <June, July, and Aug. 1970-Oct., Nov., Dec. 1973> published in Sacramento, Calif.
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Issued by: California Air Resources Board, Technical Services Division, Apr./June 1973-Oct./Dec. 1982; by Aerometric Data Division, Jan./Mar. 1983-July/Sept. 1986; by Technical Support Division, Oct./Dec. 1986-Apr./June 1991; by California Environmental Protection Agency, Air Resources Board, Technical Support Division, July/Sept. 1991-July/Sept. 1996; by the Air Resources Board, Oct./Dec. 1996-1997.
Vols. for 1976- issued also in annual summaries with title: California air quality data.