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Bolu

Good

Pollution ranking among 81 provinces

Bolu air quality analysis

26
AQI #61 / 81
Dominant Pollutant PM10
26
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
30.1 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
14.0 µg/m³
SO₂
8.4 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
42.9 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
51.3 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
871.1 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
57.1 µg/m³ ▲ 6.5
12w ago This week
PM2.5
24.0 µg/m³ ▲ 3.6
12w ago This week
SO₂
12.1 µg/m³ ▲ 2.9
12w ago This week
NO₂
51.6 µg/m³ ▲ 1.1
12w ago This week
O₃
48.4 µg/m³ ▼ 5.4
12w ago This week
CO
950.0 µg/m³ —
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
O₃ 55.1 62.7 -12%
PM10 28.3 44.4 -36%
PM2.5 12.7 21.9 -42%
CO 843.0 578.7 +46%
NO₂ 40.1 33.1 +21%
SO₂ 8.6 7.6 +13%

Stations

3 active stations

Hava Kalitesi - Kuzey İç Anadolu THM
Government Station
40.7264, 31.6050
32 PM10
13 SO₂
34 NO₂
13 O₃
1337 CO
Last updated: 2026-04-24T05:39:47.762000
Kırsal - Kuzey İç Anadolu THM
Government Station
40.6036, 31.2594
9 SO₂
130 CO
Last updated: 2026-04-24T05:18:54.224000
Kentsel-Trafik - Kuzey İç Anadolu THM
Government Station
40.7324, 31.5994
38 PM10
21 PM2.5
5 SO₂
57 NO₂
1383 CO
Last updated: 2026-04-24T05:26:43.057000
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