Category Archives: USA

Denver experienced the worst air quality of any major city in the world due to smoke from western wildfires

Denver experienced the worst air quality of any city in the world for several hours Saturday as heavy smoke from raging western wildfires polluted the city. IQAir, a Swiss air quality technology company, determined that Denver’s air was the most … Continue reading

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Volatile compounds from personal products drive urban ozone chemistry

Emissions from products like deodorant and lotion played a major role in 2018 high ozone levels in New York Personal care products like deodorant and lotion contain volatile organic compounds (VOCs) that add fragrance or texture—and these can be emitted … Continue reading

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Denver’s air is bad today. It’s expected to be worse Thursday and Friday.

State health officials warn of a mix of ozone and new surge of smoke from California fires Colorado health officials are anticipating “very poor air quality” along the Front Range through the weekend as smoke wafting from California wildfires mixes … Continue reading

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Unprecedented air quality alert continues across all of Minnesota, air quality alert due to wildfire smoke in effect through Tuesday, Aug. 3

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota. This is an unprecedented significant air quality event for Minnesota, extending over many days. The alert takes effect Friday, July 30, beginning at 12 … Continue reading

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Smoke Across North America

While plumes of wildfire smoke from western North America have passed over the northeastern U.S. and Canada multiple times each summer in recent years, they often go unnoticed. That is because smoke that spreads far from its source typically moves … Continue reading

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New York air quality among worst in world as haze from western wildfires shrouds city

Smoke from wildfires in the west caused hazy skies as air quality index surged to 157 in Manhattan, well above threshold of 100 New York City air quality was among the worst in the world as cities across the eastern … Continue reading

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July 4 fireworks caused second-highest air pollution level from the holiday in Southern California in a decade

This year’s Fourth of July fireworks created the second-highest air pollution levels from the holiday in the last decade and were the highest since the Bobcat wildfire in September, the South Coast Air Quality Management District said Tuesday. The agency … Continue reading

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You Might Want To Mask Up: Fireworks Cause Spikes In Air Pollution

Many people will flock to Fourth of July celebrations this weekend, eager to raise a toast beneath the year’s most spectacular aerial displays now that pandemic restrictions have been lifted. But some might want to keep those N95 masks handy … Continue reading

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