SmogRank / United States / Illinois

Air quality in Blue Island

Illinois, United States. PM2.5 from 8 low-cost sensors, updated hourly.

13.7 µg/m³
Moderate

Latest hour (09:00 UTC), 0.9× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#670
of 2,333 · 9.1 µg/m³
30 days
#561
of 2,331 · 8.4 µg/m³
Year
–
not enough data

Last 4 days, hour by hour

15302026-10-01 00:00 UTC: 12.6 µg/m³2026-10-01 01:00 UTC: 14.1 µg/m³2026-10-01 04:00 UTC: 10.6 µg/m³2026-10-01 08:00 UTC: 13.8 µg/m³2026-10-01 09:00 UTC: 13.7 µg/m³Sep 28Sep 29Sep 30Oct 1

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: no data2025-09-30: no data2025-10-01: no data2025-10-02: no data2025-10-03: no data2025-10-04: no data2025-10-05: no data2025-10-06: no data2025-10-07: no data2025-10-08: no data2025-10-09: no data2025-10-10: no data2025-10-11: no data2025-10-12: no data2025-10-13: no data2025-10-14: no data2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: no data2025-10-20: no data2025-10-21: no data2025-10-22: no data2025-10-23: no data2025-10-24: no data2025-10-25: no data2025-10-26: no data2025-10-27: no data2025-10-28: no data2025-10-29: no data2025-10-30: no data2025-10-31: no data2025-11-01: no data2025-11-02: no data2025-11-03: no data2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: no data2025-11-09: no data2025-11-10: no data2025-11-11: no data2025-11-12: no data2025-11-13: no data2025-11-14: no data2025-11-15: no data2025-11-16: no data2025-11-17: no data2025-11-18: no data2025-11-19: no data2025-11-20: no data2025-11-21: no data2025-11-22: no data2025-11-23: no data2025-11-24: no data2025-11-25: no data2025-11-26: no data2025-11-27: no data2025-11-28: no data2025-11-29: no data2025-11-30: no data2025-12-01: no data2025-12-02: no data2025-12-03: no data2025-12-04: no data2025-12-05: no data2025-12-06: no data2025-12-07: no data2025-12-08: no data2025-12-09: no data2025-12-10: no data2025-12-11: no data2025-12-12: no data2025-12-13: no data2025-12-14: no data2025-12-15: no data2025-12-16: no data2025-12-17: no data2025-12-18: no data2025-12-19: no data2025-12-20: no data2025-12-21: no data2025-12-22: no data2025-12-23: no data2025-12-24: no data2025-12-25: no data2025-12-26: no data2025-12-27: no data2025-12-28: no data2025-12-29: no data2025-12-30: no data2025-12-31: no data2026-01-01: no data2026-01-02: no data2026-01-03: no data2026-01-04: no data2026-01-05: no data2026-01-06: no data2026-01-07: no data2026-01-08: no data2026-01-09: no data2026-01-10: no data2026-01-11: no data2026-01-12: no data2026-01-13: no data2026-01-14: no data2026-01-15: no data2026-01-16: no data2026-01-17: no data2026-01-18: no data2026-01-19: no data2026-01-20: no data2026-01-21: no data2026-01-22: no data2026-01-23: no data2026-01-24: no data2026-01-25: no data2026-01-26: no data2026-01-27: no data2026-01-28: no data2026-01-29: no data2026-01-30: no data2026-01-31: 5.0 µg/m³2026-02-01: 10.4 µg/m³2026-02-02: 20.2 µg/m³2026-02-03: 14.7 µg/m³2026-02-04: no data2026-02-05: no data2026-02-06: 15.5 µg/m³2026-02-07: no data2026-02-08: no data2026-02-09: 16.5 µg/m³2026-02-10: no data2026-02-11: 10.9 µg/m³2026-02-12: 11.4 µg/m³2026-02-13: 15.8 µg/m³2026-02-14: 17.3 µg/m³2026-02-15: 26.9 µg/m³2026-02-16: no data2026-02-17: 18.1 µg/m³2026-02-18: no data2026-02-19: no data2026-02-20: 9.1 µg/m³2026-02-21: no data2026-02-22: no data2026-02-23: 5.7 µg/m³2026-02-24: 12.7 µg/m³2026-02-25: 14.1 µg/m³2026-02-26: 18.0 µg/m³2026-02-27: 14.7 µg/m³2026-02-28: 5.3 µg/m³2026-03-01: 4.2 µg/m³2026-03-02: 8.2 µg/m³2026-03-03: 20.7 µg/m³2026-03-04: 26.9 µg/m³2026-03-05: no data2026-03-06: 14.8 µg/m³2026-03-07: 5.7 µg/m³2026-03-08: 7.1 µg/m³2026-03-09: 7.7 µg/m³2026-03-10: 11.0 µg/m³2026-03-11: 7.4 µg/m³2026-03-12: 6.8 µg/m³2026-03-13: 5.1 µg/m³2026-03-14: 5.4 µg/m³2026-03-15: no data2026-03-16: 4.0 µg/m³2026-03-17: no data2026-03-18: 9.8 µg/m³2026-03-19: 21.1 µg/m³2026-03-20: 18.2 µg/m³2026-03-21: 19.1 µg/m³2026-03-22: no data2026-03-23: 4.9 µg/m³2026-03-24: 9.0 µg/m³2026-03-25: 13.5 µg/m³2026-03-26: no data2026-03-27: 5.8 µg/m³2026-03-28: no data2026-03-29: 10.0 µg/m³2026-03-30: 11.2 µg/m³2026-03-31: no data2026-04-01: no data2026-04-02: 12.6 µg/m³2026-04-03: no data2026-04-04: no data2026-04-05: no data2026-04-06: no data2026-04-07: no data2026-04-08: no data2026-04-09: no data2026-04-10: no data2026-04-11: no data2026-04-12: no data2026-04-13: no data2026-04-14: no data2026-04-15: no data2026-04-16: no data2026-04-17: no data2026-04-18: no data2026-04-19: no data2026-04-20: no data2026-04-21: no data2026-04-22: no data2026-04-23: no data2026-04-24: no data2026-04-25: 5.3 µg/m³2026-04-26: no data2026-04-27: no data2026-04-28: no data2026-04-29: no data2026-04-30: no data2026-05-01: 8.3 µg/m³2026-05-02: no data2026-05-03: no data2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: no data2026-05-08: no data2026-05-09: no data2026-05-10: no data2026-05-11: 6.5 µg/m³2026-05-12: no data2026-05-13: no data2026-05-14: no data2026-05-15: no data2026-05-16: no data2026-05-17: no data2026-05-18: no data2026-05-19: no data2026-05-20: 3.7 µg/m³2026-05-21: 5.8 µg/m³2026-05-22: 6.1 µg/m³2026-05-23: no data2026-05-24: 14.8 µg/m³2026-05-25: 12.5 µg/m³2026-05-26: no data2026-05-27: no data2026-05-28: no data2026-05-29: 7.2 µg/m³2026-05-30: no data2026-05-31: 5.7 µg/m³2026-06-01: 5.1 µg/m³2026-06-02: no data2026-06-03: no data2026-06-04: no data2026-06-05: no data2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: 7.6 µg/m³2026-06-10: 8.2 µg/m³2026-06-11: no data2026-06-12: no data2026-06-13: no data2026-06-14: no data2026-06-15: no data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: no data2026-06-22: no data2026-06-23: 5.2 µg/m³2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: 12.1 µg/m³2026-06-28: 11.0 µg/m³2026-06-29: 10.6 µg/m³2026-06-30: no data2026-07-01: 11.7 µg/m³2026-07-02: no data2026-07-03: no data2026-07-04: 45.6 µg/m³2026-07-05: 20.8 µg/m³2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: 7.8 µg/m³2026-07-11: 9.3 µg/m³2026-07-12: 14.5 µg/m³2026-07-13: 19.5 µg/m³2026-07-14: 15.6 µg/m³2026-07-15: 12.4 µg/m³2026-07-16: 166.5 µg/m³2026-07-17: no data2026-07-18: 21.3 µg/m³2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: 9.7 µg/m³2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: no data2026-07-31: no data2026-08-01: no data2026-08-02: no data2026-08-03: no data2026-08-04: 12.2 µg/m³2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: 11.4 µg/m³2026-08-10: no data2026-08-11: 14.2 µg/m³2026-08-12: no data2026-08-13: no data2026-08-14: 17.2 µg/m³2026-08-15: 7.5 µg/m³2026-08-16: 6.1 µg/m³2026-08-17: no data2026-08-18: no data2026-08-19: 8.4 µg/m³2026-08-20: no data2026-08-21: 14.1 µg/m³2026-08-22: no data2026-08-23: 17.8 µg/m³2026-08-24: 9.9 µg/m³2026-08-25: 9.2 µg/m³2026-08-26: 11.7 µg/m³2026-08-27: 9.9 µg/m³2026-08-28: 14.7 µg/m³2026-08-29: no data2026-08-30: 12.4 µg/m³2026-08-31: 13.4 µg/m³2026-09-01: 14.8 µg/m³2026-09-02: 14.1 µg/m³2026-09-03: 10.7 µg/m³2026-09-04: 12.7 µg/m³2026-09-05: 9.1 µg/m³2026-09-06: 7.5 µg/m³2026-09-07: 6.8 µg/m³2026-09-08: 7.6 µg/m³2026-09-09: 7.1 µg/m³2026-09-10: no data2026-09-11: no data2026-09-12: 9.4 µg/m³2026-09-13: 5.7 µg/m³2026-09-14: 5.8 µg/m³2026-09-15: 8.3 µg/m³2026-09-16: 6.8 µg/m³2026-09-17: no data2026-09-18: 4.4 µg/m³2026-09-19: 13.0 µg/m³2026-09-20: 6.7 µg/m³2026-09-21: 3.7 µg/m³2026-09-22: 3.7 µg/m³2026-09-23: 4.6 µg/m³2026-09-24: 5.3 µg/m³2026-09-25: 8.1 µg/m³2026-09-26: 8.4 µg/m³2026-09-27: 8.9 µg/m³2026-09-28: 11.0 µg/m³2026-09-29: 10.9 µg/m³2026-09-30: 10.8 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

21 of 116 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#1932FebMarAprMayJunJulAugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15JanFeb 2026: 14.3 µg/m³FebMar 2026: 10.7 µg/m³MarAprMayJunJul 2026: 29.6 µg/m³JulAug 2026: 11.9 µg/m³AugSep 2026: 8.4 µg/m³SepOctNovDec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
Morgan Park 2CC0 1.0ClarityLow-cost
West Pullman 2CC0 1.0ClarityLow-cost
West Pullman 5CC0 1.0ClarityLow-cost
West Pullman 1CC0 1.0ClarityLow-cost
Morgan Park 3CC0 1.0ClarityLow-cost
Morgan Park 1CC0 1.0ClarityLow-cost
Roseland 5CC0 1.0ClarityLow-cost
Roseland 3CC0 1.0ClarityLow-cost

No reference monitor here, so the value is the median of low-cost sensors (at least two reporting each hour). Low-cost sensors can read high in humid air. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in United States

Calexico 23.0Jurupa Valley 12.9Riverside 12.3Little Rock 12.2Hanford 11.9Oceanside 11.8Laredo 11.4Shreveport 11.0Wake Forest 11.0Corcoran 11.0Fontana 11.0West Memphis 10.9

30-day averages, µg/m³. All of United States →

Updated 2026-10-01 11:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.