North Dakota
Canadian wildfires trigger air quality alerts in four U.S. states
Smoke from wildfires in western Canada has triggered air quality alerts and warnings in Montana, North Dakota, South Dakota and Minnesota.
Hazy conditions blanketed parts of four U.S. states Monday, as smoke from wildfires in western Canada triggered air quality alerts and warnings.
Canada has 146 active wildfires burning, including dozens in British Columbia and Alberta that are charac... [3057 chars]