What is the air quality trend in Ermelo?

Over the past 9 days, Ermelo had an average AQI of 77 based on station measurements. The worst day was 2026-07-11 with AQI 112.

How is Ermelo air quality measured?

Air quality in Ermelo 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 Ermelo, South Africa

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

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

153

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

65h

PM2.5 Station

65h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	53	25–80	14.8 µg/m³	45.8	9h	1
2026-07-20	84	76–91	27.5 µg/m³	104.0	2h	1
2026-07-14	68	50–80	20.4 µg/m³	43.9	7h	1
2026-07-13	68	57–80	20.0 µg/m³	40.8	9h	1
2026-07-12	69	63–76	20.3 µg/m³	36.9	9h	1
2026-07-11	112	105–119	39.8 µg/m³	98.5	4h	1
2026-07-10	90	33–147	30.1 µg/m³	84.2	11h	1
2026-07-09	64	50–80	18.2 µg/m³	43.0	8h	1
2026-07-08	90	38–158	32.0 µg/m³	62.7	6h	1

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