Climate Change Threatens Already Poor Air Quality in California’s Central Valley
Union of Concerned Scientists
JULY 26, 2022
During the large fire years of 2018-2020, Fresno experienced 51 high particle pollution days , up from 34 days for the period of 2017-2019. . Despite long-term air quality issues and intensifying wildfire seasons, Cal/OSHA did not update regulations to protect outdoor workers from wildfire smoke until 2019.
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