What is the air quality trend in Hamilton?

Over the past 21 days, Hamilton had an average AQI of 43 based on station measurements. The worst day was 2026-10-20 with AQI 76.

How is Hamilton air quality measured?

Air quality in Hamilton 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 Hamilton, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Hamilton, United Kingdom.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 22 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	49	26–75	12.9 µg/m³	13h	24
2026-10-20	76	37–189	26.5 µg/m³	24h	25
2026-10-19	60	20–154	17.4 µg/m³	24h	20
2026-10-18	59	39–97	16.4 µg/m³	24h	25
2026-10-17	64	20–134	19.1 µg/m³	24h	27
2026-10-16	44	20–78	11.4 µg/m³	24h	25
2026-10-15	44	23–128	11.3 µg/m³	24h	30
2026-10-14	43	29–60	10.6 µg/m³	24h	27
2026-10-13	56	30–84	15.1 µg/m³	24h	31
2026-10-12	49	27–99	13.2 µg/m³	24h	32
2026-10-11	40	22–89	10.1 µg/m³	24h	28
2026-10-10	57	32–86	15.8 µg/m³	24h	33
2026-10-09	56	25–110	15.4 µg/m³	24h	35
2026-10-08	29	19–41	7.0 µg/m³	24h	21
2026-10-07	27	19–34	6.4 µg/m³	24h	19
2026-10-06	26	20–41	6.2 µg/m³	24h	21
2026-10-05	29	19–56	7.0 µg/m³	24h	24
2026-10-04	24	12–35	5.7 µg/m³	24h	21
2026-10-03	25	16–58	6.1 µg/m³	24h	22
2026-10-02	27	16–48	6.5 µg/m³	24h	23
2026-10-01	28	23–34	6.7 µg/m³	8h	22

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