What is the air quality trend in Millbrook?

Over the past 7 days, Millbrook had an average AQI of 69 based on station measurements. The worst day was 2026-07-16 with AQI 88.

How is Millbrook air quality measured?

Air quality in Millbrook 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 Millbrook, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

89h

PM2.5 Station

89h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	52	22–72	14.3 µg/m³	11h	1
2026-07-20	85	28–136	28.8 µg/m³	11h	1
2026-07-19	83	25–173	31.9 µg/m³	9h	1
2026-07-18	58	8–230	24.4 µg/m³	12h	1
2026-07-17	71	28–370	35.2 µg/m³	18h	1
2026-07-16	88	21–435	56.3 µg/m³	14h	1
2026-07-15	50	14–150	14.0 µg/m³	14h	1

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