Massachusetts Air Pollution by the Numbers

Report shows state's air quality worsening

BOSTON — Tens of thousands of kids in Massachusetts are breathing unhealthy air, according to a new report, which shows the level of particulate pollution is worsening.

Mass. gets mixed grades on air pollution in annual report

Three Massachusetts counties have some of the cleanest air in the country, according to the American Lung Association. But experts say that wildfire smoke and federal rollbacks threaten to undo decades of public health gains.

Massachusetts air pollution by the numbers

Over 170,000 children in Massachusetts are breathing unhealthy air pollution, according to the American Lung Association's latest report.