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  2. Pollution in California - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_California

    A view of Los Angeles covered in smog. Pollution in California relates to the degree of pollution in the air, water, and land of the U.S. state of California.Pollution is defined as the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a faster rate than it can be dispersed, diluted, decomposed, recycled, or ...

  3. List of California air districts - Wikipedia

    en.wikipedia.org/wiki/List_of_California_Air...

    The California Air Pollution Control District Act of 1947 allowed 1 or more counties to form air pollution districts. [5] [6] The California Bay Area Pollution Control Act of 1955 created the Bay Area Air Pollution Control District. [5] [7] The California Mulford-Carrell Air Resources Act of 1967 resulted in the creation of 11 air basins. [5] [8]

  4. Environmental issues in the San Joaquin Valley - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    The San Joaquin Valley Air Pollution Control District is the primary regulator for the region and has taken various actions to improve air quality and meet the standards of the CAA. The District adopted a PM 10 Attainment Demonstration Plan in 2006, an Ozone Attainment Demonstration Plan in 2007 and a PM 2.5 Attainment Demonstration Plan in ...

  5. Air pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_the...

    Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.

  6. South Coast Air Quality Management District - Wikipedia

    en.wikipedia.org/wiki/South_Coast_Air_Quality...

    The South Coast Air Basin area encompassed by the South Coast AQMD amounts to about 10,750 square miles (27,850 square kilometres) and is the second most populated area in the United States. This area has a severe problem with smog , and the South Coast AQMD has been a leader in the nation's efforts to reduce air pollution emissions .

  7. Firefighters helped by cooler weather battle blaze that has ...

    www.aol.com/news/firefighters-helped-cooler...

    Cooler temperatures and an increase in humidity could help slow the Park Fire, the largest this year in California. Firefighters helped by cooler weather battle blaze that has scorched area larger ...

  8. California Air Resources Board - Wikipedia

    en.wikipedia.org/wiki/California_Air_Resources_Board

    The California Air Resources Board (CARB or ARB) is an agency of the government of California that aims to reduce air pollution.Established in 1967 when then-governor Ronald Reagan signed the Mulford-Carrell Act, combining the Bureau of Air Sanitation and the Motor Vehicle Pollution Control Board, CARB is a department within the cabinet-level California Environmental Protection Agency.

  9. Inversion (meteorology) - Wikipedia

    en.wikipedia.org/wiki/Inversion_(meteorology)

    A warmer air mass moving over a cooler one can "shut off" any convection which may be present in the cooler air mass: this is known as a capping inversion. However, if this cap is broken, either by extreme convection overcoming the cap or by the lifting effect of a front or a mountain range, the sudden release of bottled-up convective energy ...