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Canada fires trigger air quality alerts for 100 million in US

Nationals-Diamondbacks baseball game postponed due to wildfire smoke: club

More than 100 million people in America are living under air quality alerts caused by Canadian wildfires, the US Environmental Protection Agency said Wednesday.

These range from “Code Orange”  — unhealthy for sensitive groups — and above, the EPA said in a statement sent to AFP.

The region “includes much of the Northeast U.S. –- extending to Chicago to the west and Atlanta to the south,” said the agency, with the Canadian wildfires presumed to be the main cause, though localized emissions and meteorology could also play a factor.

Many parts of the Northeast and Midatlantic meanwhile are under “Code Red,” an Air Quality Index (AQI) of 151 or above, considered unhealthy for all people.

Winds have carried smoke hundreds of miles from Canada’s Quebec province, the epicenter of a devastating wildfire season that has ravaged the country.

The EPA said it encouraged Americans living in affected areas to check their AQI throughout the day and take steps to reduce their exposure.

“Pay attention to any health symptoms if you have asthma, COPD, heart disease, or are pregnant. Get medical help if you need it,” it said.

While most healthy adults and children will recover quickly from smoke exposure and not have lasting effects, people with chronic diseases such as asthma or cardiovascular conditions are at higher risk.

Children, pregnant women and the elderly are also particularly advised to limit outdoor activity.

The AirNow Fire and Smoke app can be downloaded on smartphones or viewed at, which includes data from both governmental and crowd-sourced air monitors.

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Agence France-Presse (AFP) is a French international news agency headquartered in Paris, France. Founded in 1835 as Havas, it is the world's oldest news agency.

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