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

One image, taken by the European Space Agency’s Sentinel-2 satellite after the Palisades Fire erupted Tuesday morning, shows a thick band of gray smoke floating over Los Angeles County that ...

An Air Busan plane has been evacuated after a horror fire broke out in the tail - sending huge smoke clouds billowing into the sky. Around 170 passengers and crew have reportedly been taken off the ...