# Air Quality Alert: Mercer; Venango; Forest; Lawrence; Butler; Clarion; Jefferson — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/3e6e56f5d69ce357

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-16 18:11 ingested 2026-07-17 08:17

[original source ↗](http://www.weather.gov/)

## extract

Air Quality Alert — Mercer; Venango; Forest; Lawrence; Butler; Clarion; Jefferson
Severity: Unknown. Certainty: Unknown.
The Pennsylvania Department of Environmental Protection has issued a
Code PURPLE Air Quality Alert for northwestern Pennsylvania through
Friday, July 17th.

Wildfire smoke from northern Minnesota and south central Canada will
continue to result in unhealthy air quality through Friday.

Everyone should limit outdoor strenuous activity and exercise due to
poor air quality. Sensitive groups should avoid all outdoor activity.
Sensitive groups include children, the elderly, and people suffering
from heart disease, asthma, or other lung diseases.

For more information on ground-level ozone and fine particles, visit
www.airnow.gov, and www.aqpartners.state.pa.us.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.