Smoke from widespread Canadian wildfires has spread into the US, particularly affecting the Midwest and Northeast, leading to ...

Portland and the rest of the southern coast of Maine is under moderate conditions for Ozone Monday. Smoke from Canadian wildfires is being pushed through the state ahead of a cold front, according to ...

On Sunday at 5:05 p.m. an updated air quality alert was reported by the National Weather Service in effect until Monday at ...

The Department of Environmental Protection (DEP) has issued an air quality warning for Monday in parts of northeastern ...

Several studies show the health impact of burning fossil fuels and releasing gases such as carbon monoxide, nitrogen oxides, ...

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air.

Beijing's researchers developed a new PM2.5 analysis method to identify pollution sources and help reduce air pollution.

"Wildfire smoke looks to persist throughout Michigan through at least Monday as winds shift," said state meteorologist Alec Kownacki.

The Pennsylvania Department of Environmental Protection declared a Code Orange Air Quality Action Day for particulate matter ...

Researchers are particularly concerned about how these particles may affect vulnerable populations, such as children and infants. Scientists issue warning after discovering dangerous health threat ...

The Indiana Department of Environmental Management extended an Air Quality Action Day across the northern part of the state ...

Department of Environmental Services (NHDES) is calling for an Air Quality Action Day and advising sensitive groups across the state to limit time spent outdoors Monday, citing air pollution from ...