The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

Los Angeles is now a week removed from the day that multiple devastating wildfires erupted to torch tens of thousands of ...

An Air Quality Index (AQI) of 356 (very poor) was recorded at 9am compared to 275 (poor) at 4pm on Tuesday even as the ...

The AQI rose sharply on Wednesday to 386 from 275 a day earlier as dense fog enveloped the city, leading to “extremely low ...

NCR, authorities have imposed Stage 4 restrictions under the Graded Response Action Plan (GRAP). The air quality index soared ...

Wildfire ash carries many carcinogens that could cause short and long term health impacts, including asthma attacks and ...

As Santa Ana wind conditions continue to stoke fears of resurgent wildfires across Los Angeles, health officials are warning ...

NCR's air quality on Wednesday invoked curbs under stage 4 of the Graded Response Action Plan (GRAP) amid a sharp dip in air ...

Feeble winds and the fog enveloping Delhi have led to stricter pollution curbs under GRAP-4 being reimposed in the capital ...

Several parts of southern California are currently under windblown dust and ash advisories as deadly wildfires continue to ...