What is the air quality trend in Dyer?

Over the past 7 days, Dyer had an average AQI of 109 based on station measurements. The worst day was 2026-07-17 with AQI 234.

How is Dyer air quality measured?

Air quality in Dyer 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 Dyer, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 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	64	32–98	19.0 µg/m³	23h	204
2026-07-20	98	51–106	34.4 µg/m³	24h	205
2026-07-19	110	48–160	40.4 µg/m³	24h	214
2026-07-18	49	33–87	12.8 µg/m³	24h	215
2026-07-17	234	68–364	180.2 µg/m³	24h	225
2026-07-16	153	52–324	99.3 µg/m³	24h	208
2026-07-15	59	52–168	16.6 µg/m³	24h	218

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