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People living in the Midwest and Northeast were warned of a worsening air quality index throughout the week due to smoke from the Canadian wildfires
At 10pm ET, the city briefly had the worst air quality among major metropolitan areas worldwide, ... Yesterday the US Environmental Protection Agency (EPA) issued a poor air quality alert for New ...
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Since 1999, the EPA has used the air quality index (AQI) to communicate air pollution risk to the public, on a scale from 0 to 500, with six levels from Good to Hazardous. [10] (The previous version was the Pollutant Standards Index (PSI), which did not incorporate PM2.5 and ozone standards.)
Smoke from the Cedar Creek Fire that blew into Seattle, 250 miles (400 km) to the north, caused the city to record the worst air quality of any major city in the world. [6] Smoke also blew into the Eugene area.
The U.S. has a measurement system for air quality called the air quality index (AQI). The AQI has six color-coded categories with a value system that runs from zero to 500.
All data are valid for the year 2022 and are taken from the Air Quality Life Index (AQLI) of the University of Chicago. In addition to particulate matter pollution, the modeled potential loss of life expectancy of the population due to particulate matter pollution is given. [2]
As a thick haze of yellowish smog continues to wrap itself around the Big Apple, air quality advisories were in place Wednesday for all five boroughs of New York City with city dwellers urged to ...