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Why air quality is worse when it's really hot
Yahoo News· 42 minutes ago(Patrick T. Fallon/AFP via Getty Images) PATRICK T. FALLON via Getty Images Record-breaking high temperatures have enveloped much of the U...quality —...
(Patrick T. Fallon/AFP via Getty Images) PATRICK T. FALLON via Getty Images Record-breaking high temperatures have enveloped much of the U...quality —...