What is the air quality trend in Maplewood?

Over the past 7 days, Maplewood had an average AQI of 93 based on station measurements. The worst day was 2026-07-16 with AQI 244.

How is Maplewood air quality measured?

Air quality in Maplewood 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 Maplewood, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	58	31–72	15.9 µg/m³	23h	16
2026-07-20	69	28–106	21.6 µg/m³	24h	16
2026-07-19	93	58–137	31.5 µg/m³	24h	16
2026-07-18	61	45–75	17.0 µg/m³	23h	17
2026-07-17	73	49–133	22.5 µg/m³	24h	17
2026-07-16	244	29–339	193.4 µg/m³	24h	16
2026-07-15	54	35–153	15.2 µg/m³	22h	7

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