Right now
The most recent data we hold from AIRNOW arrived 2 hours ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by AIRNOW yesterday.
It is the strongest of the 31 detections recorded within 20 km of this point since 28 April 2026. The last comparable one was on 28 August 2026. 3 more were recorded here in the fortnight before it.
What the source measured
AIRNOW reported: AQI: 108 (Unhealthy for Sensitive Groups) · PM2.5 AQI: 55 · Ozone AQI: 108
An estimated 336,259 people live within 5 km of this point.
How we know
One source: AIRNOW. Not yet confirmed by a second, independent source.
Our own score for this event is 41 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Air Quality |
| Severity | Low |
| Calamity Score (ours) | 41 / 100 |
| Our confidence | 70% |
| Coordinates | 32.7670, -96.7830 |
| Nearest City | Dallas (3 km) |
| Population Exposed | 336.3K within 5 km |
| Impact Tier | minor |
| Timestamp | 2026-09-11T00:00:00.000Z |
| Source | https://www.airnow.gov/ |
Score Breakdown
Technical Details
| Aqi | 108 |
| Pm25Aqi | 55 |
| OzoneAqi | 108 |
| CategoryName | Unhealthy for Sensitive Groups |
| ReportingArea | Dallas-Fort Worth |
| StateCode | TX |
| City | Dallas |
Safety Information
When air quality is hazardous: stay indoors with windows closed, and run a filtered air purifier if you have one. Avoid outdoor exercise. Children, older adults and anyone with heart or lung conditions are affected first and worst — an N95 respirator helps outdoors, a cloth mask does not.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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