What is the air quality trend in Meridian?

Over the past 3 days, Meridian had an average AQI of 115 based on station measurements. The worst day was 2026-07-21 with AQI 135.

How is Meridian air quality measured?

Air quality in Meridian 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 Meridian, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

42h

PM2.5 Station

42h · 2 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	135	83–171	54.3 µg/m³	17h	1
2026-07-20	121	25–166	48.6 µg/m³	24h	1
2026-07-19	91	91–91	31.1 µg/m³	1h	1

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