Study says pollution from Chinese factories harming US air quality

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BEIJING — Bad air from China is blowing across the Pacific Ocean and contributing to smog in the United States, according to new scientific research.

And much of that air pollution is being caused by the manufacturing of goods inside China for export to the United States and Europe.

‘‘We’ve outsourced our manufacturing and much of our pollution, but some of it is blowing back across the Pacific to haunt us,’’ said University of California at Irvine scientist Steve Davis, a coauthor of the study. ‘‘Given the complaints about how Chinese pollution is corrupting other countries’ air, this paper shows that there may be plenty of blame to go around.’’

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