Izmit, Kocaeli Province, Turkey 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
Izmit, Kocaeli Province, Turkey
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 62 of Moderate air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Izmit, Kocaeli Province, Turkey
6 AM2nd Oct 2025
7 PM
5 AM3rd Oct 2025
72AQI
59AQI
91AQI
65AQI
In the last 24 hours,
Izmit's AQI reached its highest point of 91 at 1 AM during the Night, while the lowest point, 59, was recorded at 10 AM during the Day between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Izmit, Kocaeli Province, Turkey
23°C18/31°C
23°C18/31°C
24°C20/32°C
20°C18/22°C
21°C17/26°C
20°C17/26°C
21°C16/27°C
22°C17/30°C
22°C17/29°C
22°C17/29°C
21°C17/27°C
20°C15/26°C
20°C15/27°C
20°C15/27°C
20°C14/29°C
18°C15/22°C
18°C15/23°C
18°C13/24°C
18°C13/25°C
20°C14/29°C
20°C15/28°C
20°C15/27°C
19°C15/25°C
17°C15/21°C
17°C14/21°C
16°C13/20°C
15°C13/16°C
15°C12/20°C
15°C11/21°C
16°C11/23°C
--°C/°C
44AQI
40AQI
44AQI
41AQI
2025 Days Vs Air Quality
Izmit, Kocaeli Province, Turkey
42%
116
49%
134
9%
25
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 42%
Health Risk Level:
Significant
In 2025, 42% of 276 days were within WHO’s safe air quality limits, and 58% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Izmit, Kocaeli Province, Turkey
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
87AQI
121AQI
108AQI
84AQI
66AQI
74AQI
113AQI
117AQI
96AQI
129AQI
111AQI
79AQI
65AQI
53AQI
56AQI
64AQI
71AQI
95AQI
123AQI
127AQI
110AQI
135AQI
132AQI
139AQI
108AQI
84AQI
99AQI
127AQI
117AQI
112AQI
123AQI
126AQI
118AQI
105AQI
108AQI
60AQI
56AQI
57AQI
59AQI
54AQI
56AQI
59AQI
72AQI
64AQI
60AQI
64AQI
69AQI
61AQI
64AQI
57AQI
55AQI
55AQI
55AQI
54AQI
54AQI
55AQI
79AQI
67AQI
73AQI
73AQI
79AQI
71AQI
60AQI
62AQI
68AQI
63AQI
82AQI
88AQI
84AQI
88AQI
88AQI
75AQI
89AQI
103AQI
98AQI
103AQI
100AQI
102AQI
92AQI
92AQI
100AQI
83AQI
69AQI
68AQI
66AQI
69AQI
101AQI
98AQI
91AQI
59AQI
68AQI
69AQI
55AQI
61AQI
60AQI
44AQI
38AQI
52AQI
42AQI
46AQI
56AQI
57AQI
62AQI
54AQI
47AQI
61AQI
54AQI
57AQI
77AQI
55AQI
60AQI
77AQI
61AQI
46AQI
57AQI
47AQI
49AQI
52AQI
47AQI
52AQI
56AQI
58AQI
57AQI
37AQI
47AQI
58AQI
62AQI
74AQI
58AQI
54AQI
49AQI
46AQI
38AQI
36AQI
37AQI
38AQI
45AQI
51AQI
39AQI
37AQI
36AQI
42AQI
39AQI
37AQI
39AQI
37AQI
39AQI
39AQI
44AQI
40AQI
35AQI
31AQI
34AQI
33AQI
34AQI
46AQI
47AQI
43AQI
39AQI
49AQI
51AQI
54AQI
52AQI
52AQI
53AQI
43AQI
39AQI
43AQI
51AQI
52AQI
52AQI
48AQI
48AQI
40AQI
44AQI
44AQI
46AQI
49AQI
48AQI
45AQI
38AQI
52AQI
52AQI
45AQI
50AQI
52AQI
53AQI
55AQI
57AQI
54AQI
58AQI
55AQI
54AQI
51AQI
54AQI
55AQI
54AQI
57AQI
57AQI
56AQI
46AQI
55AQI
55AQI
60AQI
59AQI
57AQI
54AQI
53AQI
61AQI
53AQI
57AQI
47AQI
38AQI
38AQI
40AQI
38AQI
38AQI
46AQI
47AQI
52AQI
49AQI
48AQI
41AQI
37AQI
41AQI
41AQI
38AQI
42AQI
37AQI
38AQI
44AQI
35AQI
33AQI
33AQI
46AQI
35AQI
32AQI
30AQI
27AQI
29AQI
33AQI
41AQI
55AQI
47AQI
46AQI
48AQI
47AQI
38AQI
40AQI
43AQI
38AQI
42AQI
41AQI
40AQI
50AQI
44AQI
37AQI
39AQI
44AQI
47AQI
44AQI
39AQI
37AQI
47AQI
41AQI
42AQI
48AQI
38AQI
35AQI
29AQI
24AQI
33AQI
25AQI
53AQI
62AQI
101AQI
68AQI
83AQI
55AQI
45AQI
45AQI
54AQI
39AQI
40AQI
58AQI
No. of days
202559AQI
Highest AQI recorded in
January101AQI
Lowest AQI recorded in
August39AQI
202471AQI
Highest AQI recorded in
December96AQI
Lowest AQI recorded in
May54AQI
202368AQI
Highest AQI recorded in
December97AQI
Lowest AQI recorded in
September43AQI
202265AQI
Highest AQI recorded in
December102AQI
Lowest AQI recorded in
July46AQI
202162AQI
Highest AQI recorded in
November92AQI
Lowest AQI recorded in
September46AQI
202056AQI
Highest AQI recorded in
November120AQI
Lowest AQI recorded in
August36AQI
Most & Least Polluted Years Over the Last 6 Years
Izmit's annual 2025 AQI (59) shows an average percentage change of -7.8% (improved AQI) compared to previous years: 2020 (56), 2021 (62), 2022 (65), 2023 (68), 2024 (71).