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Kocaeli

Moderate

Pollution ranking among 81 provinces

Kocaeli air quality analysis

63
AQI #11 / 81
Dominant Pollutant PM10
63
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
80.8 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
39.4 µg/m³
SO₂
20.6 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
27.2 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
59.2 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
733.1 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
97.6 µg/m³ ▲ 6.7
12w ago This week
PM2.5
41.8 µg/m³ ▲ 24.2
12w ago This week
SO₂
22.9 µg/m³ ▲ 1.3
12w ago This week
NO₂
39.4 µg/m³ ▲ 17.6
12w ago This week
O₃
57.2 µg/m³ ▼ 6.4
12w ago This week
CO
708.6 µg/m³ ▼ 13.8
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
O₃ 60.0 0.0 —
CO 811.5 0.0 —
NO₂ 33.5 0.0 —
PM2.5 34.5 0.0 —
PM10 91.7 0.0 —
SO₂ 23.0 0.0 —

Stations

16 active stations

Tesis Etki Alanı - Marmara THM
Government Station
40.8115, 29.5833
12 PM10
5 NO₂
533 CO
Last updated: 2026-05-26T05:42:36.759000
Kentsel-Sanayi - Marmara THM
Government Station
40.8458, 29.4252
20 PM2.5
104 NO₂
37 O₃
Last updated: 2026-05-26T05:21:11.128000
Kentsel-Sanayi - Marmara THM
Government Station
40.7461, 29.7889
31 PM10
17 PM2.5
32 SO₂
29 NO₂
29 O₃
Last updated: 2026-05-26T05:57:33.593000
Isınma - Marmara THM
Government Station
40.7887, 29.5372
51 PM10
3 SO₂
38 NO₂
883 CO
Last updated: 2026-05-26T04:55:16.018000
Isınma - Marmara THM
Government Station
40.7264, 29.7953
40 PM10
12 PM2.5
9 SO₂
31 NO₂
35 O₃
Last updated: 2026-05-26T06:02:15.538000
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