The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

Erin Davis/Axios Visuals Air quality in Salt Lake City is getting worse, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to our health. By the ...

Thousands of farmworkers labored in fields in Ventura County, Calif. in late January in wildfire smoke. They have little to no protection from its harmful effects.

To combat air pollution, we must first understand PM2.5 — the minuscule particles that fuel it. At just 2.5 micrometres, they ...

Lung cancer cases are rising among non-smokers. Learn about the causes, symptoms, and prevention strategies from a medical expert. Protect yourself and your loved ones with this vital information.

As wildfires have burned recently across southern California, the ash from burned trees and brush is lifted in the air, then ...

Dozens of suburbs received a perfect score under a new rating system that assesses air quality, green space and variances in ...

People returning to homes in burn areas should wear N95 masks, gloves and booties as they search through rubble or clean away ...

In the final act, Dhaka's citizens storm the streets, demanding change. Industries comply, vehicles are upgraded, and construction sites become paragons of cleanliness. The city's skyline emerges, not ...

Dr. Barbara Ferrer said residents should assess their homes for soot, ash and smoke contamination before settling back in.