"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

With hundreds of wildfires burning across Canada, smoke has drifted into the northern United States, lowering air quality ...

Ahamad said much more needs to be done to cut air pollution levels. The WHO had earlier found that 99% of the world’s population lives in places that do not meet recommended air quality levels.

Millions of people die each year from air pollution-related health issues. In 2016, around 4.2 million premature deaths were associated with fine particulate matter, according to the World Health ...