India, April 24 -- The United States is experiencing growing pollution issues because of wildfires, while factory and vehicle emissions decrease.

The American Lung Association's 'State of the Air' 2025 report reveals that 156 million Americans in nearly half the nation experience breathing "unhealthy" air.

The ALA assessment investigated pollution data spanning 2021 to 2023, where it examined ground-level ozone, also known as smog, together with year-round particle pollution and short-term spikes of particle pollution.

Bakersfield-Delano in California leads as the American city with the most severe persistent particle contamination, with Visalia and Fresno-Hanford-Corcoran in the same region occupy the second and third spots.

Detroit,...