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Other states were also facing similar air pollution issues at the same time, but fearing that setting too strict a standard would drive away automobile manufacturers, they considered implementing standards that were less restrictive compared to California, potentially creating a patchwork of regulations across the United States.
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]
More than 98% of Californians live in a community earning a “failing grade” for air pollution, according to the American Lung Association’s 2023 State of the Air report.
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.
Under the Clean Air Act, states must abide by the federal government's standard vehicle emissions standards unless they at least partially opt to follow California's stricter requirements.
California's emissions standards are set by the California Air Resources Board (CARB). By mid-2009, 16 other states had adopted CARB rules; [14] given the size of the California market plus these other states, many manufacturers choose to build to the CARB standard when selling in all 50 states. CARB's policies have also influenced EU emissions ...
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.