The American Lung Association's 19th annual "state of the air" report found that 134 million Americans – more than 41% – lived in counties with unhealthy levels of either ozone or particulate pollution in 2014-2016. In a country with over 270 million vehicles, America's air suffers from tailpipe pollution. Health impacts of air pollution include asthma and respiratory illness, heart disease and stroke, cancer, low birth weights due to reproductive toxicants, premature death, and traffic morbidity and mortality. In Massachusetts, where one in 11 people already suffer from asthma, these vehicular implications are particularly concerning.
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