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Canada Wildfire Smoke Chokes US Cities
19 Jul
Summary
- Wildfire smoke contains benzene and formaldehyde, posing lung damage risks.
- Morgantown air quality reached 'Very Unhealthy' levels on Friday.
- Jet stream prolongs smoke's presence, with particles lingering for weeks.
Massive plumes of smoke from over 800 wildfires currently burning across Canada have significantly impacted air quality in the northeastern United States. This smoke contains toxic elements such as benzene and formaldehyde, which pose risks of long-term lung damage.
As of Friday, July 19, 2026, Morgantown and Kingwood registered a U.S. Air Quality Index of 259, classified as 'Very Unhealthy.' Fairmont and Clarksburg reported readings of 236. Health officials recommended that children, older adults, pregnant women, and individuals with respiratory or heart conditions avoid outdoor activities.
Experts explain that the smoke's persistence is influenced by the jet stream, a factor that could keep particulate matter in the atmosphere for an extended period, similar to historical events. The combustion of both natural elements and residential materials, including plastics and synthetics, contributes to the toxic composition of the smoke.
