Environment
How long will the wildfire smoke last and is it bad for your health?
Smoke from hundreds of wildfires burning in Canada has triggered air quality alerts across the northern US, including in New York City
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Smoke from hundreds of wildfires burning in Canada has triggered air quality alerts across the northern US, including in New York City
Ozone levels above the mid-southern hemisphere dropped 13 per cent after Australia鈥檚 worst fires on record due to chemical reactions triggered by the smoke