Washington, DC, blanketed in a heavy haze from Canadian wildfires

Candian DC District of Columbia Lincoln Memorial Memorial National Mall US USA United States WWII Washington Washington Monument World War II World War II Memorial air air quality blanket blanketed blanketing blankets center centered centering centers chemicals city downtown hazardous heavy man mid-Atlantic monuments northeast particle particles pollution populations sit sitting smog smoke toxic toxins urban wildfires Washington Monument Lincoln Memorial Canada Wildfires Pollution Northeast Mid-Atlantic states Allison Bailey/NurPhoto