What is the air quality trend in Maryville?

Over the past 8 days, Maryville had an average AQI of 31 based on station measurements. The worst day was 2026-07-20 with AQI 44.

How is Maryville air quality measured?

Air quality in Maryville 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 Maryville, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

82h

PM2.5 Station

82h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	25	9–33	5.9 µg/m³	7h	3
2026-07-21	32	14–55	7.9 µg/m³	8h	2
2026-07-20	44	30–55	10.7 µg/m³	7h	2
2026-07-19	32	7–46	7.7 µg/m³	7h	2
2026-07-18	28	11–38	6.7 µg/m³	12h	1
2026-07-17	30	9–46	7.3 µg/m³	9h	1
2026-07-16	31	21–34	7.4 µg/m³	15h	1
2026-07-15	26	20–34	6.2 µg/m³	17h	1

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