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Stay in if you're having a bad air day

Studies show diesel smog increases chances of deadly blood clots.

Poor air quality can lead to spikes in heart problems. Credit: Alamy


  1. Mills, N., et al. N Engl J Med 357, 1075-1082 (2007).

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  2. Mutlu, G., et al. J Clin Invest doi:10.1172/JCI30639 (2007).

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EPA on particulate matter

American Heart Association on air quality

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Callaway, E. Stay in if you're having a bad air day. Nature (2007).

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