What is the air quality trend in Near South Side?

Over the past 10 days, Near South Side had an average AQI of 6 based on station measurements. The worst day was 2026-10-17 with AQI 11.

How is Near South Side air quality measured?

Air quality in Near South Side 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 Near South Side, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Near South Side, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

40h

PM2.5 Station

40h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	4	4–5	1.1 µg/m³	1.1	4h	1
2026-10-19	10	4–16	2.4 µg/m³	3.4	3h	1
2026-10-17	11	1–21	2.6 µg/m³	4.5	2h	1
2026-10-16	4	4–4	1.0 µg/m³	1.1	1h	1
2026-10-15	6	6–6	1.4 µg/m³	1.6	1h	1
2026-10-14	9	1–25	2.1 µg/m³	2.4	9h	1
2026-10-13	5	2–13	1.2 µg/m³	1.4	10h	1
2026-10-12	6	1–10	1.5 µg/m³	2.0	7h	1
2026-10-09	3	3–3	0.7 µg/m³	2.1	2h	1
2026-10-07	9	9–9	2.2 µg/m³	3.2	1h	1

Back to Near South Side Air Quality