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PA Air Alert: Canadian Wildfire Smoke Chokes Skies
17 Jul
Summary
- Pennsylvania faces Code Purple air quality alert due to wildfire smoke.
- Air quality is 'very unhealthy' for all residents.
- Sensitive groups must avoid outdoor activity; others limit strenuous tasks.

Pennsylvania is currently under a statewide Code Purple air quality alert, issued on Friday. This alert is a direct result of smoke drifting from wildfires raging in Canada and Minnesota. The Pennsylvania Department of Environmental Protection designates Code Purple when air quality reaches 'very unhealthy' levels for the general population.
During this alert, sensitive individuals, including children and the elderly, alongside those with respiratory conditions, are strongly advised to refrain from any outdoor physical activity. All other residents are encouraged to minimize strenuous activities such as exercise or yard work. Public health researchers note that prolonged exposure, approximately two hours within the purple air quality range, is equivalent to smoking a single cigarette.
The U.S. Environmental Protection Agency's Air Quality Index (AQI) uses color-coded designations to report daily air quality. Purple signifies a 'very unhealthy' status, surpassing the 'unhealthy' red level. In some areas, the alert could escalate to Code Maroon, indicating hazardous air quality and recommending that everyone remain indoors. Residents are encouraged to monitor current air quality through resources like airnow.gov.