Particulates are just one component of air pollution, but they pose a significant health risk—especially the ones that are smaller than 2.5 microns. Particulate pollution can aggravate asthma and can

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Particulates are just one component of air pollution, but they pose a significant health risk—especially the ones that are smaller than 2.5 microns. Particulate pollution can aggravate asthma and can 

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