Air pollution from freeway extends further than previously thought

Environmental health researchers from UCLA, the University of Southern California and the California Air Resources Board have found that during the hours before sunrise, freeway air pollution extends much further than previously thought.

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<p><a href="http://www.physorg.com/news163863019.html">Air pollution from freeway extends further than previously thought</a></p> <p>Environmental health researchers from UCLA, the University of Southern California and the California Air Resources Board have found that during the hours before sunrise, freeway air pollution extends much further than previously thought. </p>