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Air Quality

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Gas Cars Much Dirtier Than Expected

May 29th, 2017 | by Steve Hanley

For years, the conventional wisdom has been that pollution from diesel engines was far worse than from gasoline engines for two reasons: First, diesel exhaust fumes are known to contain nitrous oxide emissions. Second, they also contain particulates, small molecules that are too small to see. Both are believed to cause serious damage to human lungs



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