Calamity
MediumAir QualityCS: 37 · v4 (historical)

Air Quality near Tzaneen

Greater TzaneenSouth AfricaWorld Air Quality Index

Right now

The most recent data we hold from World Air Quality Index arrived 69 minutes 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.

No stronger detection stands among the 6 recorded within 20 km of this point since 13 August 2026 — 4 others scored the same. The last comparable one was on 12 September 2026. 4 more were recorded here in the fortnight before it.

What the source measured

World Air Quality Index reported: AQI 156 (Unhealthy) at Mopani

The air quality index read 156 (Unhealthy) at the Mopani station.

Urban PEI: 8,764 within a heuristic 5 km radius; not unique people.

Nearby, since 13 August 2026

How we know

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

Our own score for this event is 37 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeAir Quality
SeverityMedium
Calamity Score (ours)37 / 100
Legacy data-support index0.67/1
Coordinates-23.8435, 30.1529
Nearest CityTzaneen (2 km)
Urban exposure index (PEI)8.8K within 5 km
Impact Tiersignificant
Timestamp2026-09-13T05:52:00.000Z
Sourcehttps://aqicn.org/city/@-472792

Physical priority index · v4 (historical). 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: 2026-09-13T05:52:00.000Z.

First archived: 2026-09-13T06:26:27.637Z. 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

65
intensity
25
Urban PEI term
0
Scenario weight
33
Recorded reference / batch anomaly

Technical Details

Aqi156
AqiCategoryUnhealthy
StationNameMopani
StationUid-472792

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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