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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 ...
English: Reasons and effects of air pollution' Carbondioxide from exhausts and energy production; Methane from cattle breeding; Sulfur oxides from exhausts and industry; CFCs from refrigerants and propellants; Nitrogen oxides from exhausts and industry; Ozone from air with high oxygen level, catalysed by nitrogen oxides;
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.
PM2.5 - tiny particles 2.5 microns or less in width - poses a health risk because it can become embedded in lung tissue when inhaled, the researchers warned.
Around one-third of people in the U.S. live with unhealthy levels of air pollution, according to the American Lung Association. Wildfires are causing more short-term spikes.
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Air pollution can cause diseases, allergies, and even death; it can also cause harm to animals and crops and damage the natural environment (for example, climate change, ozone depletion or habitat degradation) or built environment (for example, acid rain). [3] Air pollution can occur naturally or be caused by human activities. [4]
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