Environment maps U.S. counties most affected by unhealthy air July 18, 2017 Alex More than 24 million Americans suffer from asthma. Nearly 127 million Americans is threatened by both smog pollution and ragweed pollen. Source: www.nrdc.org/climate-change-and-health-air-quality#/map Related Posts:Life expectancy at birth in yearsCompanies market capitalizationWorst States and Cities for Allergies in the U.S. MappedHow Many Cigarettes You’re Indirectly Smoking Due to…World Map of Dry Air Capitals: Cities with the…The Best and Worst U.S. cities for Skin Health MappedLight Pollution in the United StatesThe Price of Health: Analyzing Food Costs Across America