What is the air quality trend in South Holland?

Over the past 8 days, South Holland had an average AQI of 99 based on station measurements. The worst day was 2026-07-17 with AQI 232.

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

167h

PM2.5 Station

167h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	26	21–32	6.2 µg/m³	3h	186
2026-07-21	62	32–97	18.2 µg/m³	24h	266
2026-07-20	98	58–106	34.3 µg/m³	24h	256
2026-07-19	112	87–160	41.0 µg/m³	24h	266
2026-07-18	50	33–88	13.0 µg/m³	24h	268
2026-07-17	232	68–359	178.2 µg/m³	24h	281
2026-07-16	159	52–326	102.7 µg/m³	24h	262
2026-07-15	59	52–168	17.1 µg/m³	20h	271

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