What is the air quality trend in Randfontein?

Over the past 7 days, Randfontein had an average AQI of 71 based on station measurements. The worst day was 2026-07-16 with AQI 75.

How is Randfontein air quality measured?

Air quality in Randfontein 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 Randfontein, South Africa

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

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

121

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 9 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	73	24–152	22.9 µg/m³	26.6	23h	14
2026-07-20	65	33–113	19.4 µg/m³	25.2	24h	13
2026-07-19	73	36–132	22.7 µg/m³	23.4	24h	14
2026-07-18	72	35–182	24.1 µg/m³	24.1	24h	14
2026-07-17	74	43–122	23.2 µg/m³	42.1	24h	13
2026-07-16	75	40–158	23.8 µg/m³	28.7	24h	13
2026-07-15	68	41–112	20.2 µg/m³	24.2	24h	13

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