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Bolu

Good

Pollution ranking among 81 provinces

Bolu air quality today: AQI 39 (Good), ranked 47 of 81 provinces, dominant pollutant PM2.5. Daily data from 3 official stations with weekly trends and district detail.

39
AQI #47 / 81
Dominant Pollutant PM2.5
39
0 50 100 150 200 300 500

This Week

Pollutant averages

PM10
46.3 µg/m³
0 HKDYY limit (24h): 50 µg/m³
PM2.5
24.8 µg/m³
SO₂
17.0 µg/m³
0 HKDYY limit (1h): 350 µg/m³
NO₂
48.5 µg/m³
0 HKDYY limit (1h): 200 µg/m³
O₃
23.3 µg/m³
0 HKDYY limit (8h): 120 µg/m³
CO
612.3 µg/m³
0 HKDYY limit (8h): 10000 µg/m³

12-Week Trend

Weekly pollutant averages

PM10
64.8 µg/m³ ▲ 2.4
12w ago This week
PM2.5
35.1 µg/m³ ▲ 5.9
12w ago This week
SO₂
19.2 µg/m³ ▼ 3.7
12w ago This week
NO₂
56.6 µg/m³ ▼ 13.7
12w ago This week
O₃
34.1 µg/m³ ▲ 10.3
12w ago This week
CO
618.9 µg/m³ ▼ 271.9
12w ago This week

Monthly Comparison

This month vs. same period last year

Pollutant Current Last Year Change
CO 551.7 648.7 -15%
NO₂ 46.5 41.8 +11%
SO₂ 16.8 4.7 +257%
PM10 42.7 28.1 +52%
PM2.5 19.8 15.8 +25%
O₃ 29.2 28.1 +4%

Stations

3 active stations

Hava Kalitesi - Kuzey İç Anadolu THM
Government Station
40.7264, 31.6050
5 PM10
2 PM2.5
22 SO₂
31 NO₂
2 O₃
1115 CO
Last updated: 2026-10-31T05:40:45.329000
Kırsal - Kuzey İç Anadolu THM
Government Station
40.6036, 31.2594
20 SO₂
132 CO
Last updated: 2026-10-31T05:21:01.597000
Kentsel-Trafik - Kuzey İç Anadolu THM
Government Station
40.7324, 31.5994
19 PM10
15 PM2.5
5 SO₂
38 NO₂
274 CO
Last updated: 2026-10-31T05:25:24.706000

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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