South Union Street, Tecumseh, Michigan, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
South Union Street, Tecumseh, Michigan, United States
AQI Trends: Highest and Lowest
Same Day Analysis (12th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Oct - 13th Oct 2025
South Union Street, Tecumseh, Michigan, United States
7 AM12th Oct 2025
7 PM
6 AM13th Oct 2025
58AQI
38AQI
51AQI
14AQI
In the last 24 hours,
South Union Street's AQI reached its highest point of 58 at 3 PM during the Day, while the lowest point, 14, was recorded at 6 AM during the Night between 12th Oct and 13th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
South Union Street, Tecumseh, Michigan, United States
18°C11/26°C
20°C13/30°C
20°C12/31°C
20°C11/30°C
20°C10/31°C
22°C12/32°C
21°C15/30°C
19°C13/26°C
21°C15/30°C
21°C17/28°C
19°C16/25°C
19°C17/24°C
19°C16/23°C
19°C12/28°C
21°C12/32°C
21°C13/31°C
20°C12/30°C
19°C11/29°C
18°C12/25°C
17°C8/28°C
19°C9/32°C
22°C12/33°C
22°C13/32°C
22°C13/31°C
18°C13/21°C
12°C7/18°C
9°C3/18°C
12°C3/23°C
13°C8/19°C
12°C5/23°C
--°C/°C
40AQI
38AQI
40AQI
37AQI
2025 Days Vs Air Quality
South Union Street, Tecumseh, Michigan, United States
76%
152
24%
47
0.5%
1
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Under WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 286 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
South Union Street, Tecumseh, Michigan, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI
49AQI
46AQI
38AQI
18AQI
18AQI
27AQI
21AQI
21AQI
20AQI
18AQI
24AQI
25AQI
29AQI
34AQI
40AQI
29AQI
32AQI
30AQI
18AQI
17AQI
31AQI
50AQI
40AQI
21AQI
21AQI
16AQI
37AQI
46AQI
43AQI
22AQI
25AQI
22AQI
38AQI
19AQI
28AQI
38AQI
19AQI
18AQI
26AQI
24AQI
24AQI
21AQI
21AQI
33AQI
22AQI
28AQI
32AQI
31AQI
39AQI
37AQI
23AQI
18AQI
19AQI
19AQI
23AQI
13AQI
11AQI
12AQI
26AQI
31AQI
26AQI
23AQI
36AQI
36AQI
33AQI
25AQI
34AQI
58AQI
63AQI
67AQI
81AQI
76AQI
82AQI
69AQI
55AQI
69AQI
77AQI
59AQI
53AQI
50AQI
48AQI
37AQI
38AQI
22AQI
37AQI
44AQI
47AQI
54AQI
53AQI
38AQI
47AQI
35AQI
26AQI
33AQI
32AQI
31AQI
44AQI
48AQI
54AQI
69AQI
57AQI
32AQI
56AQI
58AQI
44AQI
46AQI
42AQI
41AQI
69AQI
86AQI
74AQI
29AQI
22AQI
26AQI
25AQI
52AQI
37AQI
36AQI
56AQI
29AQI
34AQI
27AQI
30AQI
28AQI
42AQI
108AQI
78AQI
55AQI
76AQI
91AQI
98AQI
78AQI
72AQI
57AQI
51AQI
52AQI
51AQI
47AQI
39AQI
63AQI
70AQI
59AQI
40AQI
22AQI
21AQI
17AQI
20AQI
27AQI
32AQI
23AQI
16AQI
20AQI
26AQI
32AQI
21AQI
24AQI
33AQI
36AQI
32AQI
34AQI
32AQI
39AQI
23AQI
22AQI
22AQI
26AQI
36AQI
43AQI
49AQI
55AQI
56AQI
53AQI
45AQI
52AQI
54AQI
52AQI
25AQI
28AQI
37AQI
32AQI
32AQI
34AQI
28AQI
40AQI
41AQI
27AQI
27AQI
27AQI
28AQI
51AQI
58AQI
62AQI
42AQI
17AQI
17AQI
23AQI
34AQI
33AQI
41AQI
38AQI
28AQI
25AQI
50AQI
46AQI
46AQI
37AQI
36AQI
No. of days
202539AQI
Highest AQI recorded in
June50AQI
Lowest AQI recorded in
May25AQI
Most & Least Polluted Years Over the Last 1 Years
South Union Street's annual 2025 AQI (39) shows an average percentage change of NaN% (improved AQI) compared to previous years: .