What is the air quality trend in Mesa?

Over the past 8 days, Mesa had an average AQI of 42 based on station measurements. The worst day was 2026-07-16 with AQI 67.

How is Mesa air quality measured?

Air quality in Mesa 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 Mesa, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	26	17–57	6.3 µg/m³	21h	12
2026-07-20	38	20–93	9.9 µg/m³	24h	13
2026-07-19	41	20–61	10.1 µg/m³	24h	14
2026-07-18	45	23–103	12.5 µg/m³	24h	14
2026-07-17	65	23–159	22.1 µg/m³	24h	14
2026-07-16	67	22–166	21.7 µg/m³	24h	14
2026-07-15	32	21–59	7.7 µg/m³	24h	14
2026-07-14	26	22–28	6.1 µg/m³	3h	11

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