Egyre elviselhetetlenebb a szmog az amerikai városokban a kanadai erdőtűz miatt

This handout image provided by the BC Wildfire Service on June 7, 2023, shows smoke from the West Kiskatinaw River and Peavine Creek wildfires in the Dawson Creek Zone, British Colombia, Canada. As of Wednesday, June 7, about 3.8 million hectares had been scorched and more than 20,000 people remained displaced across Canada, but that figure was expected to rise as thousands more in Quebec were ordered to leave their homes by the end of the day. (Photo by BC Wildfire Service / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / BC Wildfire Service / Handout" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS