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Bolu

Good

Pollution ranking among 81 provinces

Bolu air quality today: AQI 25 (Good), ranked 71 of 81 provinces, dominant pollutant PM10. Daily data from 3 official stations with weekly trends and district detail.

25
AQI #71 / 81
Dominant Pollutant PM10
25
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
29.8 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
12.0 µg/m³
SO₂
13.2 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
37.9 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
58.6 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
510.9 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
18.2 µg/m³ ▼ 1.8
12w ago This week
PM2.5
7.6 µg/m³ —
12w ago This week
SO₂
12.2 µg/m³ ▲ 0.8
12w ago This week
NO₂
32.3 µg/m³ ▼ 2.6
12w ago This week
O₃
47.3 µg/m³ ▼ 11.1
12w ago This week
CO
481.7 µg/m³ ▲ 151.5
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
CO 425.7 397.1 +7%
O₃ 62.8 62.9 -0%
SO₂ 12.4 5.4 +130%
NO₂ 35.3 27.2 +30%
PM2.5 15.0 11.7 +28%
PM10 30.8 29.3 +5%

Stations

3 active stations

Hava Kalitesi - Kuzey İç Anadolu THM
Government Station
40.7264, 31.6050
21 PM10
4 PM2.5
15 SO₂
32 NO₂
4 O₃
804 CO
Last updated: 2026-09-16T05:42:06.456000
Kırsal - Kuzey İç Anadolu THM
Government Station
40.6036, 31.2594
12 PM2.5
18 SO₂
156 CO
Last updated: 2026-09-16T05:19:09.679000
Kentsel-Trafik - Kuzey İç Anadolu THM
Government Station
40.7324, 31.5994
26 PM10
13 PM2.5
2 SO₂
67 NO₂
624 CO
Last updated: 2026-09-16T05:24:28.791000

Hyperlocal monitoring for Bolu

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.

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