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Kastamonu

Good

Pollution ranking among 81 provinces

Kastamonu air quality analysis

25

AQI #61 / 81

Dominant Pollutant O₃

25

0 50 100 150 200 300 500

This Week

Pollutant averages

PM10

9.1 µg/m³

0 HKDYY limit (24h): 50 µg/m³

PM2.5

2.5 µg/m³

SO₂

10.4 µg/m³

0 HKDYY limit (1h): 350 µg/m³

NO₂

4.4 µg/m³

0 HKDYY limit (1h): 200 µg/m³

O₃

82.6 µg/m³

0 HKDYY limit (8h): 120 µg/m³

12-Week Trend

Weekly pollutant averages

PM10

10.5 µg/m³ ▼ 4.9

12w ago This week

PM2.5

0.7 µg/m³ —

12w ago This week

SO₂

7.6 µg/m³ —

12w ago This week

NO₂

3.9 µg/m³ —

12w ago This week

O₃

89.7 µg/m³ ▼ 5.8

12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change

SO₂ 4.2 2.5 +68%

O₃ 88.7 117.5 -25%

NO₂ 4.3 2.4 +79%

PM10 8.3 21.8 -62%

PM2.5 2.6 7.6 -66%

Stations

2 active stations

Kırsal - Kuzey İç Anadolu THM

Government Station

41.6859, 33.5045

5 PM10

1 PM2.5

16 SO₂

2 NO₂

92 O₃

Last updated: 2026-08-01T04:19:33.302000

Hava Kalitesi - Kuzey İç Anadolu THM

Government Station

41.3889, 33.7781

31 PM10

15 PM2.5

2 SO₂

20 NO₂

37 O₃

252 CO

Last updated: 2025-05-12T10:22:18.289000

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