• South Coast Air Quality Management District

    • Government Agencies/Institutions
    21865 Copley Dr
    Diamond Bar, CA 91765-4178
    (909) 396-3194
    (909) 396-3636 (fax)
    • About

      The South Coast Air Quality Management District (AQMD) is the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside & San Bernadino counties, the smoggiest region of the U.S. AQMD is committed to protecting the health of residents, while remaining sensitive to businesses.

    • Whom to Contact

      • Leeor Alpern