What is the air quality trend in Worcester?

Over the past 7 days, Worcester had an average AQI of 46 based on station measurements. The worst day was 2026-07-21 with AQI 57.

How is Worcester air quality measured?

Air quality in Worcester 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 Worcester, South Africa

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

137h

PM2.5 Station

137h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	57	11–176	19.1 µg/m³	20h	2
2026-07-20	51	8–98	15.0 µg/m³	22h	2
2026-07-19	41	7–70	10.5 µg/m³	18h	2
2026-07-18	45	7–68	11.7 µg/m³	19h	2
2026-07-17	42	9–105	11.2 µg/m³	18h	2
2026-07-16	44	14–91	11.7 µg/m³	19h	2
2026-07-15	43	11–165	12.8 µg/m³	21h	2

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