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Illinois Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in United States

Last Updated: 2025-10-14 07:28:19 AM (Local Time)

location image
Live AQI
58(AQI-US)
Air Quality is
Moderate
pm10 :  53 µg/m³
PM2.5 :  12 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Illinois
clear

16 °C

Clear
Humidity
Humidity84 %

Wind Speed
Wind Speed11 km/h

UV Index
UV Index0
Last Updated: 2025-10-14 07:28:19 AM (Local Time)


Map

Illinois

Major Air Pollutants

Illinois

AQI Graph

Historical Air Quality Data

Illinois

Illinois
AQI
.
12-10-2025Time13-10-2025
45
Min.at 9:04 PM on 12th Oct
66
Max.at 9:04 AM on 13th Oct

Download 2024 Annual Data

World Air Quality Report

Globe

Illinois's Cities

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
60
8
74
22
80
Moderate
56
11
65
31
75
Moderate
56
12
59
19
88
Moderate
56
12
58
27
69
Moderate
53
10
42
25
60
Moderate
63
7
80
20
88
Good
47
8
28
20
98
Good
46
8
21
23
58
Moderate
55
11
52
22
60
Moderate
66
15
63
23
88
Moderate
65
16
58
24
88
Moderate
54
10
27
22
84
Moderate
60
14
31
21
80
Moderate
56
12
44
25
97
Moderate
67
16
88
29
62
Good
50
9
43
21
95
Moderate
55
9
63
26
88
Moderate
56
12
31
19
85
Moderate
58
13
30
20
82
Moderate
64
15
77
30
62
Moderate
60
14
62
24
84
Moderate
65
16
58
22
72
Moderate
63
10
80
22
90
Moderate
62
15
76
31
54
Moderate
58
13
60
24
91
Moderate
55
11
39
25
73
Moderate
60
12
74
23
88
Moderate
54
10
48
20
86
Moderate
53
10
28
20
73
Moderate
55
11
38
21
100
Moderate
73
21
61
23
95
Moderate
62
15
47
26
100
Moderate
58
13
47
24
68
Moderate
61
14
64
24
82
Moderate
52
10
27
21
100
Good
44
8
17
25
62
Moderate
60
14
39
21
84
Moderate
57
12
49
22
76
Moderate
55
11
58
19
89
Moderate
62
15
43
16
81
Moderate
55
7
64
21
87
Good
44
8
21
21
100
Moderate
74
13
102
30
61

United States's Metro Cities

Air Quality Index

Health Advice For People Living In

Illinois

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Illinois

  • asthma due to air pollution in IllinoisAsthma
  • heart due to air pollution in IllinoisHeart Issues
  • allergy due to air pollution in IllinoisAllergies
  • sinus due to air pollution in IllinoisSinus
  • flu due to air pollution in IllinoisCold/Flu
  • copd due to air pollution in IllinoisChronic (COPD)
asthma due to air pollution in Illinois

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

United States

Analyze the real-time most air polluted cities in the country.

Illinois's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
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WidgetsWidgets
aqi air quality app for Illinois
Mobile App

Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Illinois

Frequently Asked Questions About Air Quality

What is the current AQI level in Illinois?

The current real-time AQI level in Illinois is 58 (Moderate). This was last updated 2025-10-14 07:28:19 AM (Local Time).

When was the best AQI level in Illinois in the last 24 hours?

The best AQI level was 45 (Good) at 9:04 PM, Oct 12, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Illinois in the last 24 hours?

The worst AQI level was 66 (Moderate) at 9:04 AM, Oct 13, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Illinois during last 24 hours?

The AQI levels in Illinois have been fluctuating throughout the last 24 hours. The levels have increased by highest 66 at 9:04 AM, Oct 13, 2025 (Local Time), lowest 45 at 9:04 PM, Oct 12, 2025 (Local Time).

What actions are recommended as per the current AQI level in Illinois?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.