New York and several parts of the eastern United States and Canada were covered in a smoky gray veil on Tuesday, caused by fires in the western United States and Canada.
The New York State Environmental Protection Services has issued an all-day air quality alert, systematically when fine particle concentrations above 35 are expected. micrograms per cubic meter.
According to a specialist in these services, it is not uncommon for smoke from fires coming from the west to reach the New York area, but they generally remain high enough in the atmosphere not to affect the quality of the air. air. The smoke this time is lower than usual, he said.
This phenomenon should however disappear on Wednesday, with the expected arrival of a cold front on the New York region, according to a spokesman for the American national meteorological service, the National Weather Service.
Several large fires have been ravaging the western United States for the past few days – notably in California, Nevada and Oregon, where the dangerous Bootleg Fire is raging – even though the fire season has only just begun.
In Canada, more than 2,000 people have been evacuated in recent days in the province of Ontario, the most populous in the country, and more than 200 fires were active in this province and that of neighboring Manitoba, according to figures from the authorities. tuesday.
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