The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...

Canadian wildfire smoke lingers in Michigan. Officials issued an air quality advisory in southeast Michigan for July 15.

The Air Quality Index (AQI) is a national system developed by the U.S. Environmental Protection Agency (EPA) to translate various air pollutant concentrations into a single, easy-to-understand number.

Wildfires are becoming more common in Canada and that means more smoke and air quality warnings. Here’s what you need to know about air quality to better understand how it could impact your health and ...

If you’ve been outside on a smoggy day, you’ve probably noticed that your body reacts poorly to bad air quality. Maybe you coughed, or got a headache. But what actually happens to your body when you ...

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

Environment Canada identifies the people at particular risk as seniors, infants, folks who work up a sweat outdoors, and ...

US Stock market today climbed as Nvidia stock surged on hopes of renewed AI chip sales to China, with support from President ...

Air Quality Advisory and heat warning are in effect for southern Quebec. After the flood comes the fire. Montreal has some of ...

Thirty years ago, a heat wave settled over northeast Illinois. By the time the heat relented, 739 people had died and the city was using refrigerated trucks as makeshift morgues.

President Trump announced that NATO members will send existing weapons to Ukraine and buy new ones from the US, and gave Russia 50 days to agree to a ceasefire before economic penalties are threatened ...

The DEC has issued an air quality health advisory for most of upstate New York due to elevated levels of fine particulate ...