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Kocaeli

Unhealthy for Sensitive

Pollution ranking among 81 provinces

Kocaeli air quality analysis

112
AQI #2 / 81
Dominant Pollutant PM2.5
112
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
68.4 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
96.1 µg/m³
SO₂
20.5 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
24.0 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
75.0 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
845.2 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
15.8 µg/m³ ▼ 113.0
12w ago This week
PM2.5
10.0 µg/m³ ▼ 48.1
12w ago This week
SO₂
0.0 µg/m³ ▼ 23.2
12w ago This week
NO₂
0.0 µg/m³ ▼ 53.9
12w ago This week
O₃
0.0 µg/m³ ▼ 32.4
12w ago This week
CO
0.0 µg/m³ ▼ 1592.6
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
PM10 77.0 115.8 -34%
NO₂ 35.1 71.3 -51%
CO 1397.2 1063.5 +31%
O₃ 50.0 32.5 +54%
SO₂ 23.5 22.2 +6%
PM2.5 62.4 35.3 +77%

Stations

15 active stations

Tesis Etki Alanı - Marmara THM
Government Station
40.8115, 29.5833
15 PM10
2 NO₂
580 CO
Last updated: 2026-03-17T11:58:27.674000
Kentsel-Sanayi - Marmara THM
Government Station
40.8458, 29.4252
20 PM2.5
14 SO₂
35 NO₂
68 O₃
Last updated: 2026-03-17T11:30:55.962000
Kentsel-Sanayi - Marmara THM
Government Station
40.7461, 29.7889
50 PM10
16 PM2.5
29 SO₂
9 NO₂
102 O₃
Last updated: 2026-03-17T11:06:36.907000
Isınma - Marmara THM
Government Station
40.7887, 29.5372
48 PM10
8 SO₂
35 NO₂
403 CO
Last updated: 2026-03-17T11:04:13.189000
Isınma - Marmara THM
Government Station
40.7264, 29.7953
49 PM10
23 PM2.5
8 SO₂
14 NO₂
89 O₃
Last updated: 2026-03-17T10:51:52.397000
Isınma - Marmara THM
Government Station
40.7006, 29.5078
14 PM2.5
52 SO₂
9 NO₂
89 O₃
Last updated: 2026-03-17T09:38:01.952000
Isınma - Marmara THM
Government Station
40.7042, 29.8845
46 PM10
18 SO₂
21 NO₂
82 O₃
Last updated: 2026-03-17T11:42:29.277000
Isınma - Marmara THM
Government Station
40.7710, 30.0077
76 PM10
25 SO₂
5 NO₂
Last updated: 2026-03-17T11:22:18.834000
Kırsal - Marmara THM
Government Station
41.1310, 30.0067
44 PM10
990 PM2.5
16 NO₂
60 O₃
Last updated: 2026-03-17T11:17:16.264000
Isınma - Marmara THM
Government Station
40.7645, 29.9493
36 PM10
25 PM2.5
13 SO₂
89 O₃
Last updated: 2026-03-17T12:07:45.604000
Isınma - Marmara THM
Government Station
40.8104, 29.4362
38 PM10
9 SO₂
14 NO₂
96 O₃
Last updated: 2026-03-17T11:34:41.790000
Hava Kalitesi - İstanbul Büyükşehir Belediyesi
Government Station
40.8431, 29.3026
48 PM10
17 PM2.5
27 SO₂
14 NO₂
62 O₃
284 CO
Last updated: 2026-03-17T11:25:59.584000
Kent Çevresi-Trafik - Marmara THM
Government Station
40.7682, 29.9384
87 PM10
76 NO₂
459 CO
Last updated: 2026-03-17T10:50:36.997000
Tesis Etki Alanı - Marmara THM
Government Station
40.8383, 29.5803
39 PM10
8 NO₂
855 CO
Last updated: 2026-03-17T10:59:10.566000
airQuality-nais
Airqoon Sensor
40.8245, 29.3004
42 PM10
16 PM2.5
Last updated: 2026-03-17T12:00:00+00:00
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