What is the air quality trend in Germiston?

Over the past 8 days, Germiston had an average AQI of 72 based on station measurements. The worst day was 2026-07-16 with AQI 101.

How is Germiston air quality measured?

Air quality in Germiston 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 Germiston, South Africa

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

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

137

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

162h

PM2.5 Station

162h · 1 station

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	44	9–75	11.6 µg/m³	18.3	22h	1
2026-07-20	43	12–85	11.5 µg/m³	19.9	24h	1
2026-07-19	69	13–167	23.3 µg/m³	37.6	24h	1
2026-07-18	97	7–228	47.0 µg/m³	76.8	24h	2
2026-07-17	90	36–185	36.7 µg/m³	66.9	22h	2
2026-07-16	101	33–195	45.0 µg/m³	77.4	21h	2
2026-07-15	65	9–193	23.5 µg/m³	37.0	24h	1
2026-07-14	70	70–70	21.2 µg/m³	30.9	1h	1

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