What is the air quality trend in Hamilton?

Over the past 20 days, Hamilton had an average AQI of 75 based on station measurements. The worst day was 2026-05-19 with AQI 99.

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

478h

PM2.5 Station

478h · 8 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	60	26–159	18.3 µg/m³	23h	9
2026-05-28	63	30–195	21.2 µg/m³	24h	11
2026-05-27	85	46–162	28.7 µg/m³	24h	12
2026-05-26	85	54–165	29.2 µg/m³	24h	13
2026-05-25	78	32–152	25.0 µg/m³	24h	13
2026-05-24	90	55–177	32.3 µg/m³	24h	13
2026-05-23	75	47–134	23.3 µg/m³	24h	12
2026-05-22	73	29–152	22.9 µg/m³	24h	13
2026-05-21	86	26–177	32.4 µg/m³	24h	12
2026-05-20	83	43–176	28.4 µg/m³	24h	12
2026-05-19	99	45–173	37.0 µg/m³	24h	12
2026-05-18	67	42–103	20.0 µg/m³	24h	12
2026-05-17	64	39–92	18.5 µg/m³	24h	12
2026-05-16	71	8–114	22.4 µg/m³	23h	13
2026-05-15	73	46–157	22.6 µg/m³	24h	16
2026-05-14	73	37–117	22.6 µg/m³	24h	17
2026-05-13	76	54–129	23.6 µg/m³	24h	16
2026-05-12	71	44–124	21.9 µg/m³	24h	16
2026-05-11	61	33–107	17.6 µg/m³	24h	16
2026-05-10	74	36–162	23.8 µg/m³	24h	16

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