The smaller particles could in fact be more harmful as they can get through the body's natural defenses and cause significant health problems.

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

Photos of the Vietnamese capital, home to almost 9 million people, show the environmental cost of the Southeast Asian ...

Nearly the entire world is breathing dirty air, as a shocking map reveals that just 17 per cent of the world's cities meet air pollution guidelines.

Air-quality readings like the ones expected across parts of New York State on Wednesday would not be seen as particular cause for alarm in some parts of the world.

Around 70% of the over four million deaths related to outdoor air pollution in 2019 were caused by heart conditions, and global particulate matter concentrations were over six times higher than ...

Only 13 of the world’s countries and territories had “healthy” air quality last year, according to a new report, as air pollution surged to alarming levels in 2022.

As Canada and parts of the U.S. confront declines in air quality due to smoke from Canadian wildfires, NPR reporters in Asia, Latin America and Africa share their experiences.

Poor air quality caused by air pollution is associated with a number of human diseases, including asthma, heart attack, stroke, pneumonia, and cancer, which is why air pollution is an important public ...

The World Health Organization (WHO) suggests that 99 percent of the global population breathes in air containing high levels of pollutants and exceeds the WHO guidelines.