Air Quality in California | American Lung Association

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Air Quality in California

Despite decades of progress, Californians still breathe some of the most polluted air in the nation, with approximately 70 percent of Californians living in areas with unhealthy air. Numerous scientific studies have linked air pollution to lung cancer, worsening asthma attacks, heart attacks, strokes, and early death as well as increased hospitalizations for breathing problems.

For decades, the American Lung Association in California has led the way to improved air quality, successfully promoting policies to reduce car and truck emissions, diesel exhaust from trucks, buses, ports and off-road equipment, and supporting key efforts to implement smart growth solutions that reduce the need to drive and our dependence on dirty petroleum. A major focus of our current efforts is to maintain progress in implementation of life-saving air pollution laws made possible through California's clean air leadership in the following areas.

Learn more about how California is fighting for air quality »

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