Only seven countries met WHO air quality standards in 2024, data shows March 11, 2025 2:12 AM By Reuters; FILE - A bird flies through a thick layer of smog in New Delhi, India, Nov. 20, 2024.

Each Air Quality Index category, also known as the level of concern, is attached to a certain range of values: Good (green): 0 to 50 Moderate (yellow): 51 to 100 ...

Metro Denver and the northern Front Range are failing two air-quality standards. The first missed benchmark is a requirement under the federal Clean Air Act to lower average ozone pollution to a ...

Today the Council formally adopted a directive setting updated air quality standards across the EU. The new rules will contribute to the EU's objective on zero pollution by 2050 and will help prevent ...

It's a bill before the general assembly that would, in part, reestablish air quality safety standards for local school districts. Connecticut schools must complete an annual school building ...

Only seven countries met World Health Organization (WHO) air quality standards last year, data showed on Tuesday, as researchers warned that the war on smog would only get harder after the United ...