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Illinois Air Quality Index (AQI) | Air Pollution

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

Last Updated: 41 seconds ago (Local Time)

location image
Live AQI
56(AQI-US)
Air Quality is
Moderate
pm10 :  31 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
partly cloudy

33 °C

Partly cloudy
Humidity
Humidity46 %

Wind Speed
Wind Speed19 km/h

UV Index
UV Index4
Last Updated: 41 seconds ago (Local Time)


Map

Illinois

Major Air Pollutants

Illinois

AQI Graph

Historical Air Quality Data

Illinois

Illinois
AQI
.
07-08-2025Time08-08-2025
53
Min.at 4:09 AM on 8th Aug
58
Max.at 5:09 PM on 7th Aug

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
59
14
35
23
73
Moderate
52
10
22
25
80
Moderate
57
12
35
23
84
Moderate
52
10
24
26
79
Moderate
55
11
21
25
82
Moderate
55
11
36
23
80
Moderate
56
12
31
23
85
Moderate
58
13
26
23
85
Moderate
52
10
24
26
79
Moderate
58
13
35
22
74
Moderate
60
14
35
22
73
Moderate
55
11
25
24
85
Moderate
60
14
34
21
76
Moderate
55
11
31
24
84
Moderate
54
11
38
26
77
Moderate
56
12
35
23
85
Good
49
9
35
22
74
Moderate
56
12
30
21
77
Moderate
60
14
34
21
76
Moderate
55
11
38
26
78
Moderate
51
9
21
24
84
Moderate
57
12
35
24
80
Moderate
58
13
36
24
76
Moderate
52
10
23
25
80
Moderate
60
14
35
22
75
Moderate
55
11
21
25
82
Moderate
57
12
35
23
83
Moderate
57
12
34
23
83
Moderate
52
10
25
23
86
Moderate
56
12
30
21
77
Moderate
60
14
35
20
73
Moderate
55
11
31
24
84
Good
49
9
21
24
85
Moderate
56
11
37
23
83
Moderate
55
12
32
23
84
Moderate
56
12
26
23
85
Moderate
59
13
33
22
77
Moderate
54
11
26
24
85
Moderate
53
10
35
23
85
Good
49
9
22
24
83
Moderate
55
11
36
23
80
Moderate
56
12
27
21
80
Moderate
56
12
38
25
79

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
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
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 56 (Moderate). This was last updated 41 seconds ago (Local Time).

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

The best AQI level was 53 (Moderate) at 4:09 AM (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 58 (Moderate) at 5:09 PM, Aug 7, 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 58 at 5:09 PM, Aug 7, 2025 (Local Time), lowest 53 at 4:09 AM (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.