With various air quality indexes available, and as wildfire smoke becomes an increasing health risk, here’s what often goes ...

Sensitive groups are advised to stay indoors and limit outdoor activities as pollution and ozone levels spike to unhealthy ...

This week in the Boston Globe Weather Mailbag, Globe Weather HQ tackles questions surrounding summer thunderstorm frequency, ...

The heat warning issued last Friday for the Ottawa-Gatineau region should last until Thursday night, according to Environment ...

The New York State Department of Environmental Conservation and the State Department of Health have issued an Air Quality Health Advisory for Eastern Lake Ontario, Western New York, and other regions ...

Officials have issued an air quality alert for around 10 million Americans, telling them to minimize outdoor activities and ...