From the University of California – Los Angeles and the WUWT Obvious Science Department:
‘Carmaheaven’: Closure of 405 in 2011 improved air quality up to 83 percent
Take the time to enjoy a deep breath next weekend when the 405 freeway closes for Carmageddon II. If it’s anything like last year, the air quality is about to get amazing.
In study findings announced Sept. 28, UCLA researchers report that they measured air pollutants during last year’s Carmageddon (July 15) and found that when 10 miles of the 405 closed, air quality near the shuttered portion improved within minutes, reaching levels 83 percent better than on comparable weekends.
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