What is the air quality trend in South Holland?

Over the past 7 days, South Holland had an average AQI of 108 based on station measurements. The worst day was 2026-07-17 with AQI 233.

How is South Holland air quality measured?

Air quality in South Holland 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 South Holland, United States

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

Historical PM2.5 and AQI trend from monitoring stations near South Holland, 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	62	32–97	18.3 µg/m³	24h	252
2026-07-20	99	52–106	34.3 µg/m³	24h	254
2026-07-19	111	58–160	40.6 µg/m³	24h	264
2026-07-18	49	22–89	12.8 µg/m³	24h	265
2026-07-17	233	67–358	179.0 µg/m³	24h	279
2026-07-16	154	52–328	100.8 µg/m³	24h	258
2026-07-15	54	51–76	13.5 µg/m³	24h	270

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