NEW YORK — As Canada continues to battle its worst wildfire season on record, toxic smoke has traveled south and is once again blanketing states across the U.S.
A total of 18 states are under air quality alerts on Tuesday, stretching from Montana to New York and as far south as Georgia, according to AirNow, an air quality website run by a partnership between the federal government and state and local air quality agencies.
The fires in 2023 have already have already burned more than 26 million acres in Canada -- more than 850% of normal and far surpassing the previous record set in 1995 of 17.5 million acres burned. There are still months to go in the fire season. This is because wildfire smoke is made up of several toxins, including fine particulate matter -- known as PM2.5 -- which is 30 times smaller in diameter than a human hair.
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