Bridgeport, Chicago, Illinois, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Bridgeport, Chicago, Illinois, United States
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 51 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Sep - 29th Sep 2025
Bridgeport, Chicago, Illinois, United States
6 AM28th Sep 2025
7 PM
5 AM29th Sep 2025
60AQI
38AQI
45AQI
23AQI
In the last 24 hours,
Bridgeport's AQI reached its highest point of 60 at 6 AM during the Day, while the lowest point, 23, was recorded at 5 AM during the Night between 28th Sep and 29th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Bridgeport, Chicago, Illinois, United States
20°C17/25°C
21°C17/25°C
21°C18/26°C
22°C18/27°C
20°C17/24°C
17°C11/22°C
17°C15/21°C
15°C9/20°C
16°C10/22°C
18°C10/24°C
19°C11/25°C
21°C16/28°C
20°C18/23°C
22°C16/29°C
24°C17/32°C
22°C19/24°C
21°C18/26°C
21°C17/27°C
21°C18/26°C
22°C17/29°C
23°C19/29°C
22°C20/27°C
23°C19/30°C
23°C18/30°C
21°C18/26°C
19°C17/22°C
18°C14/24°C
21°C14/30°C
23°C15/33°C
21°C16/25°C
--°C/°C
53AQI
45AQI
50AQI
44AQI
2025 Days Vs Air Quality
Bridgeport, Chicago, Illinois, United States
69%
147
31%
66
0.4%
1
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 69%
Health Risk Level:
Moderate
In 2025, 69% of 272 days were within WHO’s safe air quality limits, and 31% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Bridgeport, Chicago, Illinois, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
53AQI
28AQI
23AQI
25AQI
37AQI
35AQI
38AQI
21AQI
23AQI
33AQI
27AQI
28AQI
33AQI
24AQI
36AQI
53AQI
75AQI
53AQI
26AQI
24AQI
32AQI
29AQI
23AQI
22AQI
23AQI
21AQI
29AQI
38AQI
51AQI
51AQI
36AQI
42AQI
25AQI
21AQI
30AQI
33AQI
28AQI
27AQI
24AQI
26AQI
18AQI
30AQI
44AQI
49AQI
50AQI
51AQI
37AQI
23AQI
21AQI
31AQI
42AQI
46AQI
42AQI
27AQI
27AQI
33AQI
49AQI
36AQI
22AQI
22AQI
31AQI
44AQI
23AQI
29AQI
30AQI
19AQI
20AQI
25AQI
39AQI
39AQI
20AQI
25AQI
34AQI
24AQI
37AQI
34AQI
33AQI
45AQI
38AQI
23AQI
20AQI
20AQI
25AQI
20AQI
15AQI
22AQI
20AQI
24AQI
26AQI
27AQI
30AQI
40AQI
44AQI
38AQI
36AQI
44AQI
58AQI
63AQI
90AQI
87AQI
82AQI
82AQI
72AQI
62AQI
73AQI
82AQI
73AQI
60AQI
50AQI
53AQI
48AQI
37AQI
31AQI
42AQI
42AQI
46AQI
56AQI
51AQI
38AQI
49AQI
40AQI
26AQI
35AQI
34AQI
33AQI
53AQI
54AQI
60AQI
86AQI
56AQI
53AQI
68AQI
55AQI
48AQI
48AQI
34AQI
56AQI
72AQI
85AQI
58AQI
28AQI
28AQI
37AQI
31AQI
65AQI
72AQI
61AQI
58AQI
35AQI
37AQI
32AQI
43AQI
46AQI
53AQI
104AQI
91AQI
70AQI
79AQI
91AQI
91AQI
92AQI
69AQI
57AQI
54AQI
51AQI
48AQI
46AQI
47AQI
67AQI
75AQI
62AQI
40AQI
37AQI
36AQI
21AQI
21AQI
38AQI
39AQI
24AQI
21AQI
31AQI
39AQI
42AQI
20AQI
27AQI
43AQI
39AQI
42AQI
54AQI
45AQI
45AQI
25AQI
34AQI
36AQI
40AQI
54AQI
60AQI
57AQI
61AQI
61AQI
57AQI
57AQI
58AQI
62AQI
61AQI
62AQI
56AQI
45AQI
48AQI
28AQI
26AQI
41AQI
44AQI
51AQI
41AQI
33AQI
33AQI
29AQI
55AQI
53AQI
51AQI
48AQI
No. of days
202543AQI
Highest AQI recorded in
June55AQI
Lowest AQI recorded in
May29AQI
Most & Least Polluted Years Over the Last 1 Years
Bridgeport's annual 2025 AQI (43) shows an average percentage change of NaN% (improved AQI) compared to previous years: .