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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 ...
Population growth increases air pollution, as more vehicles are on the road. California's large population significantly contributes to the high amount of smog and air pollution in the state. [citation needed] In 1930, California's population was less than six million people and the total registered vehicles were two million. [16]
Since January 2009, all new vehicles sold in California have been required to be labeled with a California Air Resources Board window sticker showing both a Smog Score and a Global Warming Score. The scores are on a 1–10 scale, with 5 being average and with 10 being the best (i.e., emitting the least carbon dioxide).
California policymakers and environmentalists view recent Supreme Court actions as a small victory for clean air, but worry about future legal challenges.
1947 – Los Angeles Air Pollution Control District created; first air pollution agency in the US. 1948 – Federal Water Pollution Control Act; 1955 – National Air Pollution Control Act; 1959 – California Motor Vehicle Pollution Control Board created to test automobile emissions and set standards.
A team of Southern California economists recently published a study that found the federal government could drastically reduce aviation emissions by offering to pay airlines to scrap aging ...
The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively). [1 ...
The South Coast Air Quality Management District votes to require rail yard owners and operators, including BNSF Railway and Union Pacific Railroad, to aggressively reduce lung-irritating nitrogen ...