With Drop in LA's Vehicular Aerosol Pollution, Vegetation Emerges as Major Source
Published:23 Mar.2021 Source:University of California - Berkeley
California's restrictions on vehicle emissions have been so effective that in at least one urban area, Los Angeles, the most concerning source of dangerous aerosol pollution may well be trees and other green plants, according to a new study by University of California, Berkeley, chemists.
Aerosols -- particles of hydrocarbons referred to as PM2.5 because they are smaller than 2.5 microns in diameter and easily lodge in the lungs -- are proven to cause cardiovascular and respiratory problems.