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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 ...
Photochemical smog, often referred to as "summer smog", is the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone. [21] Photochemical smog depends on primary pollutants as well as the formation of secondary pollutants.
From January 7 to 31, 2025, a series of 14 destructive wildfires affected the Los Angeles metropolitan area and San Diego County in California, United States. [5] The fires were exacerbated by drought conditions, low humidity, a buildup of vegetation from the previous winter, and hurricane-force Santa Ana winds, which in some places reached 100 miles per hour (160 km/h; 45 m/s).
The Santa Anas are katabatic winds (Greek for "flowing downhill") arising in higher altitudes and blowing down towards sea level. [7] The National Weather Service defines Santa Ana winds as "a weather condition [in southern California] in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions".
An outpouring of fugitive dust layered with man-made sulfates, smog, industrial fumes, carbon grit, and nitrates is crossing the Pacific Ocean on prevailing winds from booming Asian economies in plumes so vast they alter the climate. Almost a third of the air over Los Angeles and San Francisco can be traced directly to Asia.
This year, for the first time, leaf blowers, weed wackers, lawn mowers and other small off-road engines are expected to produce more smog-forming emissions than passengers cars. We must move to ...
This page was last edited on 13 June 2008, at 20:33 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
The South Bay Salt Works is a salt factory in southern San Diego near Chula Vista, in the South Bay region of San Diego County, California.. Initially operating under the name La Punta Salt Works operations dating back to at least 1871, for a period of time it was the sole supplier of salt for Southern California.