Clean Air -- California's Success and Future Challenges

This page last reviewed September 19, 2008.

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Speaking Notes Slide 5

Historical Slide :  News Headline from June 11, 1947

Speaking Notes: Air Pollution Control Act

(Signed by Governor Earl Warren June 10, 1947)




Authorizing the creation of air pollution control districts in every county:

  • Los Angeles County APCD - 1947
  • Bay Area AQMD - 1955 (First Multi-County)

The public took action and on June 10, 1947, Governor Earl Warren signed the Air Pollution Control Act, which authorized the creation of Air Pollution Control Districts in every county of the state. Later that year, the Los Angeles County Air Pollution Control District (APCD) was established -- the first of its kind in the nation. Soon after, others followed (Note: See list below for additional information.). The next step was to figure out what made up and caused air pollution.


References:  Many of the later APCDs are consolidations of county operations within air basins.



1947

Los Angeles County APCD (1976: SCAQMD - Riverside, Los Angeles, Orange,
San Bernardino County)

1955

Bay Area APCD (First Multi-County)

1959

Sacramento County APCD (1988 - Sacramento Metropolitan AQMD Incorporate
Portion of Placer County)

1968

Monterey Bay Unified APCD (Santa Cruz and Monterey Counties Consolidate)

1970

San Luis Obispo APCD

1970

Santa Barbara County APCD

1971

Yolo / Solano APCD

1986

Northern Sierra APCD

1991

Feather River APCD

1991

San Joaquin Valley Unified AQMD (Fresno, Kings, Madera, Merced, San Joaquin,
Stanislaus, Tulare, and the Portion of Kern Within the Air Basin)

1992

Mojave Desert AQMD (San Bernardino / Riverside Counties Outside SCAQMD
Plus Eastern Kern and Northeastern Los Angeles Counties

1996

Antelope Valley APCD (Northern Los Angeles County)



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