The AQI, which is used by China to measure air pollution, is officially limited at 500. An AQI of 500 for a 24-hour period triggers a red alert warning, ...

Ena Cemalovic is a study abroad student in Shanghai, China. ... Air Quality Index (AQI) is a measurement of the quality of the air at any given time. It ranges from 0 to 500.

The sun rises over the city on a polluted morning in Beijing, China, November 18, 2021. ... its AQI hit 230 on Sunday night and climbed above 200 again on Monday.

Smog in China shaved a total of 2.5 billion years off the lives of 500 million people in the 1990s, and pollution may have caused 1.2 million premature deaths in 2010.

Mr Forrest, the Fortescue billionaire, has been Australia’s loudest green iron champion. China has been paying attention and ...

The China Air Quality Index for Beijing stood at 282 as of 11:24 a.m. local time, the highest since May 23, according to a pollution meter published by the US Department of State.

On Monday morning, AQI levels in the city remained dangerously high. Notable readings included 919 in Mundka, 762 in ITI Jahangirpuri, and 624 in Anand Vihar, placing these areas in the 'severe ...