What is the air quality trend in Leicester?

Over the past 15 days, Leicester had an average AQI of 46 based on station measurements. The worst day was 2026-07-17 with AQI 58.

How is Leicester air quality measured?

Air quality in Leicester 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 Leicester, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

323h

PM2.5 Station

323h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	35	25–45	8.5 µg/m³	8.1	7h	2
2026-07-21	37	13–61	9.2 µg/m³	3.3	23h	3
2026-07-20	34	16–59	8.2 µg/m³	2.1	22h	2
2026-07-19	58	5–500	51.8 µg/m³	1.3	23h	3
2026-07-18	53	5–147	14.8 µg/m³	13.8	24h	2
2026-07-17	58	9–92	15.8 µg/m³	27.7	24h	2
2026-07-16	56	26–164	16.2 µg/m³	13.1	24h	2
2026-07-15	52	28–70	13.5 µg/m³	14.3	23h	2
2026-07-14	45	26–71	11.3 µg/m³	7.9	22h	2
2026-07-13	33	10–61	8.2 µg/m³	2.3	24h	3
2026-07-12	38	12–133	10.1 µg/m³	1.3	20h	2
2026-07-11	51	7–176	17.4 µg/m³	5.0	23h	2
2026-07-10	44	23–100	11.4 µg/m³	8.1	24h	3
2026-07-09	56	4–219	19.4 µg/m³	15.1	24h	2
2026-07-08	45	16–66	11.5 µg/m³	16.3	16h	2

Back to Leicester Air Quality