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 ...

The Indiana Department of Environmental Management said Northwest Indiana’s ozone levels are expected to be unhealthy for ...

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

COLUMBUS, Ohio — Columbus is under an Air Quality Alert Tuesday due to elevated ozone levels. Mid-Ohio Regional Planning ...

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 ...

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.

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

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 ...

The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Tuesday, July 15. Here's what to know ...

The newer AQHI takes into account the health effects and environmental concerns associated with varying concentrations of pollution, two factors the AQI does not. AQHI measures the impact of air ...

The Club World Cup is seen by many as a dress rehearsal for the 2026 World Cup host - so what have we learned now it's over?

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.