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
Vote on Alaska Oil Tax Still Too Close to Call29 minutes ago
Michigan Provides a Home for Other States' Unwanted Fracking Waste1 hour ago
Uber Hires Ex-Obama Adviser to Oversee Policy and Strategy4 hours ago
Despite New Law, California Cities Aren't Fining Water Wasters22 hours ago
Alaska’s Oil and Identity at Stake on Ballot1 day ago
Instead of Demolishing Vacant Homes, Buffalo Sells Them for $15 days ago