NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel
Green Car Congress
AUGUST 9, 2012
The reason is simple: cars are getting cleaner. Requirements for catalytic converters, use of reformulated fuels less prone to evaporate, and improved engine efficiency of new vehicles have all likely contributed to overall declines in vehicle-related pollution, including VOCs. The difference was amazing. —Warneke et al.
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