Why Is It So Hazy? Wildfire Smoke Brings Red Skies, Health Warnings

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U.S.|Wildfire fume spreads haze and wellness warnings to East Coast.


Wildfire fume from the Western United States and Canada stretched crossed North America this week, covering skies successful a heavy haze, tinting the prima a malevolent reddish and triggering wellness alerts from Toronto to Philadelphia.

Air quality remained successful the unhealthy scope crossed overmuch of the East Coast connected Wednesday morning, arsenic shown successful the representation below, based connected modeling from the National Oceanic and Atmospheric Administration. The representation reflects good particulate contamination released by the fires and does not see contamination from different quality sources, similar powerfulness plants and cars.



It’s not unprecedented to spot fume question specified agelong distances, said Róisín Commane, an atmospheric idiosyncratic astatine Columbia University, but it doesn’t ever descend to the surface.

The aerial prime index, a measurement developed by the Environmental Protection Agency, spiked crossed the Midwest and East Coast this week, with numbers hovering astir 130 to 160 successful New York City, a scope wherever members of delicate groups and the wide nationalist whitethorn acquisition adverse wellness effects. (The index runs from 0 to 500; the higher the number, the greater the level of aerial pollution, with readings implicit 100 considered peculiarly unhealthy.)

In different East Coast cities, readings besides remained elevated connected Wednesday: 126 successful Baltimore, 121 successful Narragansett, R.I., and 129 successful Pennsylvania’s Lehigh Valley.

Eerie reddish prima rises were recorded crossed the region. The contamination was forecast to statesman lifting implicit the New York country precocious Wednesday morning, but the fume was past expected to propulsion southbound to Washington, D.C., and Virginia.

More than 80 ample fires are currently burning crossed 13 American states, and galore much are progressive crossed Canada.

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