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Kocaeli

Moderate

Pollution ranking among 81 provinces

Kocaeli air quality analysis

89
AQI #7 / 81
Dominant Pollutant PM2.5
89
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
59.4 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
65.9 µg/m³
SO₂
26.1 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
32.3 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
74.2 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
1335.0 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
44.7 µg/m³ ▼ 44.1
12w ago This week
PM2.5
33.5 µg/m³ ▲ 3.4
12w ago This week
SO₂
28.5 µg/m³ ▲ 10.8
12w ago This week
NO₂
26.2 µg/m³ ▲ 12.8
12w ago This week
O₃
61.2 µg/m³ ▼ 12.5
12w ago This week
CO
1285.5 µg/m³ ▲ 18.2
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
O₃ 66.3 0.0 —
CO 1014.3 0.0 —
NO₂ 30.8 0.0 —
PM2.5 40.6 0.0 —
PM10 78.1 0.0 —
SO₂ 24.6 0.0 —

Stations

16 active stations

Tesis Etki Alanı - Marmara THM
Government Station
40.8115, 29.5833
8 PM10
3 NO₂
580 CO
Last updated: 2026-06-07T05:45:55.762000
Kentsel-Sanayi - Marmara THM
Government Station
40.8458, 29.4252
26 PM2.5
19 NO₂
54 O₃
Last updated: 2026-06-07T05:21:10.118000
Kentsel-Sanayi - Marmara THM
Government Station
40.7461, 29.7889
31 PM10
15 PM2.5
21 SO₂
4 NO₂
75 O₃
Last updated: 2026-06-07T05:55:39.358000
Isınma - Marmara THM
Government Station
40.7887, 29.5372
48 PM10
4 SO₂
9 NO₂
2407 CO
Last updated: 2026-06-07T05:53:28.689000
Isınma - Marmara THM
Government Station
40.7264, 29.7953
35 PM10
8 PM2.5
10 SO₂
6 NO₂
69 O₃
Last updated: 2026-06-07T05:59:55.661000
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