Calamity
HighAir QualityCS: 36 · v5

Air Quality in United States

United StatesWorld Air Quality Index

Right now

The most recent data we hold from World Air Quality Index arrived 16 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

Reported by World Air Quality Index yesterday.

It is one of only 2 we have recorded within 20 km of this point since 14 August 2026. The last comparable one was on 14 August 2026.

What the source measured

World Air Quality Index reported: AQI 201 (Very Unhealthy) at Pahala, Hawaii, USA

The air quality index read 201 (Very Unhealthy) at the Pahala, Hawaii, USA station.

How we know

One source: World Air Quality Index. Not yet confirmed by a second, independent source.

Our own score for this event is 36 out of 100.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeAir Quality
SeverityHigh
Calamity Score (ours)36 / 100
Legacy data-support index0.45/1
Coordinates19.2039, -155.4802
Nearest CityHilo (71 km)
Urban exposure index (PEI)0 within 5 km
Impact Tierminor
Timestamp2026-09-14T19:00:00.000Z
Sourcehttps://aqicn.org/city/@5269

Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: waqi. Occurrence: 2026-09-14T19:00:00.000Z.

First archived: 2026-09-14T20:12:26.262Z. Material modification: not recorded.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

Score Breakdown

80
intensity
0
Urban PEI term
0
Scenario weight
40
Recorded reference / batch anomaly

Technical Details

Aqi201
AqiCategoryVery Unhealthy
StationNamePahala, Hawaii, USA
StationUid5269

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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