Airqoon | Brief
EN TR

Kocaeli

Moderate

Pollution ranking among 81 provinces

Kocaeli air quality today: AQI 57 (Moderate), ranked 18 of 81 provinces, dominant pollutant PM2.5. Daily data from 15 official stations with weekly trends and district detail.

57
AQI #18 / 81
Dominant Pollutant PM2.5
57
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
42.3 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
37.9 µg/m³
SO₂
8.2 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
23.1 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
63.8 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
628.5 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
36.4 µg/m³ ▼ 38.3
12w ago This week
PM2.5
23.5 µg/m³ ▼ 21.1
12w ago This week
SO₂
6.5 µg/m³ —
12w ago This week
NO₂
19.9 µg/m³ ▼ 0.9
12w ago This week
O₃
56.0 µg/m³ ▼ 5.3
12w ago This week
CO
685.9 µg/m³ ▲ 4.4
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
CO 912.9 992.5 -8%
O₃ 69.5 55.1 +26%
SO₂ 15.7 16.2 -3%
NO₂ 23.2 20.9 +11%
PM2.5 53.1 19.2 +177%
PM10 65.2 43.8 +49%

Stations

15 active stations

Tesis Etki Alanı - Marmara THM
Government Station
40.8115, 29.5833
6 PM10
9 NO₂
798 CO
Last updated: 2026-09-16T05:37:52.141000
Kentsel-Sanayi - Marmara THM
Government Station
40.8458, 29.4252
12 PM2.5
3 SO₂
44 O₃
Last updated: 2026-09-16T05:25:32.897000
Kentsel-Sanayi - Marmara THM
Government Station
40.7461, 29.7889
22 PM10
6 PM2.5
4 SO₂
44 NO₂
38 O₃
Last updated: 2026-09-16T06:01:16.968000
Isınma - Marmara THM
Government Station
40.7887, 29.5372
34 PM10
8 SO₂
30 NO₂
363 CO
Last updated: 2026-09-16T05:10:18.038000
Isınma - Marmara THM
Government Station
40.7264, 29.7953
17 PM10
4 PM2.5
4 SO₂
32 NO₂
32 O₃
Last updated: 2026-09-16T05:45:26.244000

Hyperlocal monitoring for Kocaeli

The data on this page comes from official stations and shows a province wide average. Airqoon builds street scale sensor networks for enterprises, cities and industrial sites: Unit series devices, the real time Lens platform and public maps.

Explore airqoon.com
← Back to Brief