What is the air quality trend in Grantham?

Over the past 20 days, Grantham had an average AQI of 57 based on station measurements. The worst day was 2026-05-19 with AQI 82.

How is Grantham air quality measured?

Air quality in Grantham 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 Grantham, United Kingdom

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

373h

PM2.5 Station

373h · 1 station

Temperature GFS model

79pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	36	7–56	8.8 µg/m³	14h	1
2026-05-28	49	25–90	12.9 µg/m³	19h	1
2026-05-27	51	14–106	14.6 µg/m³	12h	2
2026-05-26	79	21–160	27.4 µg/m³	15h	2
2026-05-25	76	14–288	32.2 µg/m³	18h	2
2026-05-24	39	10–93	10.9 µg/m³	17h	1
2026-05-23	49	19–164	15.0 µg/m³	18h	2
2026-05-22	66	18–175	25.3 µg/m³	17h	2
2026-05-21	66	7–316	34.2 µg/m³	19h	2
2026-05-20	60	13–161	20.0 µg/m³	18h	2
2026-05-19	82	14–154	27.7 µg/m³	19h	2
2026-05-18	58	11–163	19.5 µg/m³	22h	2
2026-05-17	70	1–330	30.8 µg/m³	20h	2
2026-05-16	69	17–158	22.8 µg/m³	18h	2
2026-05-15	55	12–144	16.4 µg/m³	21h	2
2026-05-14	68	10–137	22.1 µg/m³	20h	2
2026-05-13	53	18–91	15.2 µg/m³	23h	2
2026-05-12	36	9–77	9.1 µg/m³	22h	2
2026-05-11	42	5–105	11.4 µg/m³	22h	2
2026-05-10	45	8–88	12.7 µg/m³	19h	2

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