What is the air quality trend in Thembisa?

Over the past 8 days, Thembisa had an average AQI of 83 based on station measurements. The worst day was 2026-08-05 with AQI 93.

How is Thembisa air quality measured?

Air quality in Thembisa is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Thembisa, South Africa

Name: Thembisa Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Thembisa, South Africa.

145

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	74	73–75	23.0 µg/m³	38.0	2h	5
2026-08-07	91	56–153	30.4 µg/m³	44.5	24h	8
2026-08-06	90	61–153	30.4 µg/m³	53.3	24h	13
2026-08-05	93	59–159	32.3 µg/m³	54.9	24h	14
2026-08-04	85	42–113	28.0 µg/m³	47.0	24h	11
2026-08-03	70	33–119	22.1 µg/m³	43.2	24h	6
2026-08-02	85	45–154	28.2 µg/m³	53.1	24h	7
2026-08-01	76	34–119	24.2 µg/m³	30.3	19h	10

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