Beijing pollution may trigger heart attacks, strokes

Olympic athletes aren't the only ones who need to be concerned about the heavily polluted air in Beijing. The dirty air may trigger serious cardiovascular problems for some spectators.

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<p><a href="http://www.physorg.com/news135859615.html">Beijing pollution may trigger heart attacks, strokes</a></p> <p>Olympic athletes aren't the only ones who need to be concerned about the heavily polluted air in Beijing. The dirty air may trigger serious cardiovascular problems for some spectators.</p>