Los Angeles has had a long history of poor air quality, especially noted during the smog crisis of 1943, which horrified residents who thought it was a chemical attack. Following slow improvements, the establishment of the Environmental Protection Agency in 1970 marked a turning point in combating air pollution. The EPA has since aimed to regulate environmental pollutants to protect public health. However, recent cuts proposed by President Trump threaten to undermine these regulations and eliminate critical research, raising concerns about the future of air quality management in the city and across the nation.
Los Angeles has struggled with air pollution problems since before smog became a term. In 1943, smog covered the city so thickly that residents thought they were under a chemical attack.
In 1970, the Environmental Protection Agency was created, leading to air pollution regulations that allowed California to implement stricter provisions and ultimately protect human health.
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