Maricopa County has issued no-burn day advisories through Dec. 17 as hazy skies and dangerous air pollution settle over the ...

Tule fog is a type of low-lying cloud formation that typically develops in the Central Valley during the colder months. This fog occurs when moist air near the ground cools, causing the water vapor to ...

Vietnamese authorities have responded with a familiar set of measures. On days with peak pollution, residents are advised to ...

Winter​‍​‌‍​‍‌​‍​‌‍​‍‌ eye irritations, unlike eye infections caused by the monsoons, escalate slowly and are, in most cases, ...

Delhi's AQI stands at 391 (Severe), with hazardous spikes in some areas.Dense fog reduced visibility, disrupting flights and ...