What is the air quality trend in Plymouth?

Over the past 15 days, Plymouth had an average AQI of 40 based on station measurements. The worst day was 2026-07-18 with AQI 66.

How is Plymouth air quality measured?

Air quality in Plymouth 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 Plymouth, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

332h

PM2.5 Station

332h · 1 station

Temperature GFS model

55pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	30	15–52	7.3 µg/m³	3.9	6h	2
2026-07-21	37	9–94	10.0 µg/m³	2.8	24h	3
2026-07-20	31	1–61	7.5 µg/m³	6.6	23h	2
2026-07-19	32	6–67	8.0 µg/m³	9.5	24h	2
2026-07-18	66	52–103	19.3 µg/m³	23.9	24h	2
2026-07-17	62	27–154	18.2 µg/m³	18.6	24h	2
2026-07-16	49	29–65	12.6 µg/m³	13.7	24h	2
2026-07-15	41	11–122	10.7 µg/m³	7.0	24h	2
2026-07-14	25	8–51	5.9 µg/m³	4.2	24h	2
2026-07-13	38	9–107	10.3 µg/m³	3.3	22h	2
2026-07-12	35	13–153	9.7 µg/m³	3.5	24h	2
2026-07-11	52	22–252	19.1 µg/m³	11.9	24h	2
2026-07-10	40	20–57	9.7 µg/m³	8.6	24h	2
2026-07-09	37	1–68	9.0 µg/m³	9.4	24h	2
2026-07-08	39	1–159	11.4 µg/m³	8.5	17h	2

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