Replacing California’s Oldest and Dirtiest Cars Will Save Money and Lives
Union of Concerned Scientists
JUNE 6, 2023
pollution from the use of older passenger vehicles (defined as model year 1976 through 2003) and newer ones (model year 2004 through 2021). For example, in rural Modoc, Trinity, and Sierra counties, more than 40% of vehicles are model year 2003 or older. Combining the PM 2.5
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