What is the air quality trend in Randfontein?

Over the past 2 days, Randfontein had an average AQI of 70 based on station measurements. The worst day was 2026-07-21 with AQI 74.

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.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

47h

PM2.5 Station

47h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	74	25–152	23.2 µg/m³	26.3	24h	12
2026-07-20	67	34–133	20.2 µg/m³	25.5	23h	11

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