City report · Turkey
Bolu
Measured across a 2 km radius around Bolu, Bolu Merkez/Bolu, Türkiye (12.57 km²)
- Tree cover
- 16.4%
- Air quality
- 93Moderate
- Trees in this area
- 51.5K
- More trees needed
- 42.7K
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 25, 2026
Bolu's tree count comes to 51,522 trees across 12.57 km² — 14 points below the 30% tree-cover level considered healthy for this area, meaning roughly 42,726 more trees would close the gap. Air quality currently reads AQI 93 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Critically low
16.4% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
51,522
Target trees
94,248
More trees needed
42,726
CO₂ if planted / yr
940.0 t
Air quality detail
AQI 93Moderate
Observed Sep 27, 07:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
32.0
PM10
40.7
NO₂
16.1
O₃
28.0
SO₂
5.3
CO
210.0
Frequently asked
Questions about Bolu
What is the tree count in Bolu?
Bolu has an estimated 51,522 trees across the 12.57 km² measured — 16.4% tree cover, 14 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bolu need?
Bolu needs roughly 42,726 more trees to close a 14-point shortfall against its 30% tree-cover target — about 940.0 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Bolu right now?
The latest reading for Bolu shows an AQI of 93 (Moderate), observed Sep 27, 07:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Bolu's tree cover and air quality measured?
Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Bolu; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS, US EPA index and may differ from street-level monitors.
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