What is the air quality trend in Baychester?

Over the past 7 days, Baychester had an average AQI of 89 based on station measurements. The worst day was 2026-07-18 with AQI 138.

How is Baychester air quality measured?

Air quality in Baychester 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 Baychester, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

153h

PM2.5 Station

153h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	36	10–58	8.9 µg/m³	1.1	21h	1
2026-07-20	18	8–33	4.4 µg/m³	—	22h	1
2026-07-19	60	21–88	17.5 µg/m³	2.0	24h	1
2026-07-18	138	29–184	64.7 µg/m³	16.7	24h	1
2026-07-17	121	33–211	65.0 µg/m³	12.3	24h	1
2026-07-16	128	73–263	62.9 µg/m³	11.8	24h	1
2026-07-15	122	18–206	66.1 µg/m³	7.4	14h	1

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