What is the air quality trend in Northallerton?

Over the past 21 days, Northallerton had an average AQI of 66 based on station measurements. The worst day was 2026-05-19 with AQI 99.

How is Northallerton air quality measured?

Air quality in Northallerton 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 Northallerton, United Kingdom

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

455h

PM2.5 Station

455h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	42	23–98	10.9 µg/m³	15h	2
2026-05-28	59	17–326	24.6 µg/m³	22h	2
2026-05-27	70	10–178	23.8 µg/m³	23h	3
2026-05-26	70	11–195	24.6 µg/m³	23h	3
2026-05-25	85	20–235	34.3 µg/m³	23h	3
2026-05-24	49	18–151	13.9 µg/m³	22h	3
2026-05-23	65	13–159	20.8 µg/m³	23h	3
2026-05-22	71	20–185	26.2 µg/m³	22h	3
2026-05-21	85	15–226	39.8 µg/m³	23h	3
2026-05-20	71	20–163	23.5 µg/m³	22h	3
2026-05-19	99	15–260	45.0 µg/m³	23h	4
2026-05-18	71	8–175	24.8 µg/m³	24h	4
2026-05-17	76	30–132	24.6 µg/m³	22h	4
2026-05-16	74	15–174	24.8 µg/m³	22h	4
2026-05-15	49	14–115	13.8 µg/m³	24h	4
2026-05-14	69	25–167	22.5 µg/m³	24h	4
2026-05-13	67	17–278	25.7 µg/m³	24h	4
2026-05-12	53	18–107	15.2 µg/m³	24h	4
2026-05-11	53	25–99	14.8 µg/m³	23h	4
2026-05-10	64	23–133	19.3 µg/m³	24h	3
2026-05-09	59	49–73	15.8 µg/m³	3h	4

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