This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:


reputable news agency


Once again, smoke from Canadian wildfires envelops many American cities

Once again, smoke from canadian wildfires envelops many american cities

For the second time this month, massive plumes of smoke from hundreds of out-of-control Canadian wildfires are polluting much of America's air.

Among the major U.S. cities now experiencing are St. Louis, Milwaukee, Cincinnati, and Chicago, while entire states have also issued air quality alerts, according to the National Weather Service. These are Delaware, Illinois, Indiana, Iowa, Maryland, Michigan, New York, and Wisconsin. Parts of Kansas, Minnesota, Missouri, North Carolina, Ohio, Pennsylvania, and Virginia also have alerts. In the cities of Chicago, Cleveland, Detroit, Indianapolis, Milwaukee, Pittsburgh, and Davenport, Iowa, air quality was in the "very unhealthy" range, according to

Between 80 million and 120 million people are affected by this poor air quality, according to an analysis by the National Weather Service and CNN. In some locations, residents have been asked to stay inside and run their or to wear N95 masks if they need to go outside, according to CNN.

Smoke concentration may increase over New York City on Thursday, CNN reported. City police and firefighters planned to distribute masks, Mayor Eric Adams said. Levels were expected to be higher around the state than in the city.

2023 HealthDay. All rights reserved.

Citation: Once again, smoke from Canadian wildfires envelops many American cities (2023, July 3) retrieved 23 June 2024 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Canada wildfires again bring more unhealthy air in North America


Feedback to editors