California Achieves Cleaner Air Despite Having More Cars
New research shows that despite a threefold increase in people and cars in the last 50 years, California's strict vehicle emissions standards have managed to significantly clean up the state's air.
By Julie Cart
Despite a threefold increase in people and cars in the last 50 years, California's strict vehicle emissions standards have managed to significantly clear the state's air, according to new research.
The study also found that Southern California's air chemistry has changed for the better. The amount of organic nitrates in the atmosphere -- which cause smog's eye-stinging irritation -- has drastically fallen off, according to federal researchers.
Ozone and other pollutants have been monitored in the state since the 1960s. Since then the population in Southern California has tripled, as has the number of cars on the road. Nevertheless, tailpipe emissions have decreased.
The National Oceanic and Atmospheric Administration's Cooperative Institute for Research in Environmental Sciences at the University of Colorado led the research, which analyzed decades of data and collected air samples from overflights in 2010.
The researchers credited the state's stringent emissions standards with bringing about the pollution reductions, although they note that automobiles remain the dominant emissions source in Los Angeles.
(c)2013 Los Angeles Times
Join the Discussion
After you comment, click Post. You can enter an anonymous Display Name or connect to a social profile.
LATEST INFRASTRUCTURE & ENVIRONMENT HEADLINES
Death Toll Rises to 11 in Tennessee Wildfires14 hours ago
Biden and Trump Agree on One Thing: LaGuardia Airport Needs an Upgrade1 day ago
Wondering What ‘Sustainability’ Is? Just Ask Austin.1 day ago
Walking on Art Is Usually Frowned Upon. Not Here.1 day ago
LAX's Makeover Inspires Airport Changes Around the Country1 day ago
In Life After Coal, Appalachia Attempts to Reinvent Itself1 day ago