What is the air quality trend in Andover?

Over the past 8 days, Andover had an average AQI of 87 based on station measurements. The worst day was 2026-07-16 with AQI 241.

How is Andover air quality measured?

Air quality in Andover 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 Andover, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Andover, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	50	41–59	13.0 µg/m³	2h	12
2026-07-21	58	30–70	15.9 µg/m³	24h	17
2026-07-20	73	28–109	23.1 µg/m³	24h	16
2026-07-19	91	59–137	30.7 µg/m³	24h	17
2026-07-18	59	25–75	16.4 µg/m³	24h	17
2026-07-17	72	48–124	21.9 µg/m³	24h	18
2026-07-16	241	31–339	188.6 µg/m³	24h	17
2026-07-15	57	33–154	16.0 µg/m³	21h	7

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