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Kocaeli

Moderate

Pollution ranking among 81 provinces

Kocaeli air quality analysis

100
AQI #3 / 81
Dominant Pollutant PM2.5
100
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
64.1 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
79.5 µg/m³
SO₂
20.2 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
20.5 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
81.8 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
918.1 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
128.8 µg/m³ ▲ 66.1
12w ago This week
PM2.5
58.1 µg/m³ ▼ 13.1
12w ago This week
SO₂
23.2 µg/m³ ▲ 3.6
12w ago This week
NO₂
53.9 µg/m³ ▲ 24.7
12w ago This week
O₃
32.4 µg/m³ ▼ 19.0
12w ago This week
CO
1592.6 µg/m³ ▲ 160.2
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
PM2.5 58.3 37.3 +56%
PM10 76.9 112.3 -32%
NO₂ 35.7 67.5 -47%
O₃ 48.6 35.6 +37%
CO 1428.3 1039.0 +37%
SO₂ 23.8 19.7 +21%

Stations

15 active stations

Tesis Etki Alanı - Marmara THM
Government Station
40.8115, 29.5833
32 PM10
5 NO₂
441 CO
Last updated: 2026-03-16T15:06:30.780000
Kentsel-Sanayi - Marmara THM
Government Station
40.8458, 29.4252
17 PM2.5
13 SO₂
48 NO₂
65 O₃
Last updated: 2026-03-16T15:26:14.657000
Kentsel-Sanayi - Marmara THM
Government Station
40.7461, 29.7889
1000 PM10
25 PM2.5
62 SO₂
49 NO₂
76 O₃
Last updated: 2026-03-16T14:39:35.403000
Isınma - Marmara THM
Government Station
40.7887, 29.5372
50 PM10
3 SO₂
20 NO₂
394 CO
Last updated: 2026-03-16T14:10:30.190000
Isınma - Marmara THM
Government Station
40.7264, 29.7953
71 PM10
21 PM2.5
8 SO₂
26 NO₂
82 O₃
Last updated: 2026-03-16T14:48:52.282000
Isınma - Marmara THM
Government Station
40.7006, 29.5078
21 PM2.5
39 SO₂
41 NO₂
66 O₃
Last updated: 2026-03-16T15:12:13.111000
Isınma - Marmara THM
Government Station
40.7042, 29.8845
53 PM10
52 SO₂
45 NO₂
72 O₃
Last updated: 2026-03-16T14:36:04.730000
Isınma - Marmara THM
Government Station
40.7710, 30.0077
77 PM10
29 SO₂
12 NO₂
Last updated: 2026-03-16T15:12:18.047000
Kırsal - Marmara THM
Government Station
41.1310, 30.0067
53 PM10
36 PM2.5
14 NO₂
75 O₃
Last updated: 2026-03-16T15:19:09.714000
Isınma - Marmara THM
Government Station
40.7645, 29.9493
45 PM10
31 PM2.5
21 SO₂
99 O₃
Last updated: 2026-03-16T15:05:17.684000
Isınma - Marmara THM
Government Station
40.8104, 29.4362
77 PM10
9 SO₂
20 NO₂
87 O₃
Last updated: 2026-03-16T15:30:04.019000
Hava Kalitesi - İstanbul Büyükşehir Belediyesi
Government Station
40.8431, 29.3026
63 PM10
21 PM2.5
28 SO₂
20 NO₂
57 O₃
369 CO
Last updated: 2026-03-16T15:25:02.812000
Kent Çevresi-Trafik - Marmara THM
Government Station
40.7682, 29.9384
99 PM10
77 NO₂
915 CO
Last updated: 2026-03-16T14:48:49.930000
Tesis Etki Alanı - Marmara THM
Government Station
40.8383, 29.5803
60 PM10
11 NO₂
322 CO
Last updated: 2026-03-16T13:59:58.631000
airQuality-nais
Airqoon Sensor
40.8245, 29.3004
31 PM10
18 PM2.5
Last updated: 2026-03-16T15:00:00+00:00
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