City report · Turkey
Düzce Air quality today
Air quality in Düzce currently reads AQI 161 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 161
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 69.1
- tree cover
- 19.9%
- trees in this area
- 62.5K
- more trees needed
- 63.1K
Measured across a 2 km radius around Düzce, Türkiye (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Düzce · AQI 161 (Unhealthy)
Düzce's tree count comes to 62,518 trees across 12.57 km², 20 points below the 40% tree-cover level considered healthy for this area, so roughly 63,146 more trees would close the gap.
Air quality detail
Air quality in Düzce today: AQI 161, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Duzce, Turkey, 2.1 km away
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
69.1
PM10
103.5
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Turkey National Air Quality Monitoring Network (Ulusal Hava Kalitesi İzleme Ağı)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Düzce's daily AQI at 51 on average, from 35 on Nov 8 to an hourly peak of 74 on Nov 5.
Where Düzce stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Düzce: Critically low
19.9% tree cover against a 40% healthy-neighborhood target, across 12.57 km².
Trees in this area
62,518
Target trees
125,664
More trees needed
63,146
CO₂ if planted / yr
1,389 t
Deforestation · 2001–2025
How much forest has Düzce lost?
Since 2001, the area within 10 km of Düzce has lost about 1,190 hectares of forest (about 1,700 football pitches): 9.9% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 364 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 6 km southwest of the city center.
- Forest lost since 2001
- 1,190 haabout 1,700 football pitches
- Share of its forest
- 9.9%of what there was in 2000
- Cleared for good
- 364 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 44 hectares a year in 2021–2025, down from 70 hectares a year in 2016–2020. The worst year was 2020, when about 98 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 14 ha | 51 ha | 65 ha |
| 2002 | 7 ha | 10 ha | 18 ha |
| 2003 | 17 ha | 19 ha | 36 ha |
| 2004 | 23 ha | 33 ha | 56 ha |
| 2005 | 17 ha | 21 ha | 38 ha |
| 2006 | 23 ha | 34 ha | 57 ha |
| 2007 | 39 ha | 26 ha | 65 ha |
| 2008 | 23 ha | 31 ha | 54 ha |
| 2009 | 9 ha | 16 ha | 26 ha |
| 2010 | 11 ha | 8 ha | 19 ha |
| 2011 | 18 ha | 22 ha | 40 ha |
| 2012 | 15 ha | 9 ha | 24 ha |
| 2013 | 3 ha | 13 ha | 16 ha |
| 2014 | 5 ha | 56 ha | 61 ha |
| 2015 | 14 ha | 40 ha | 54 ha |
| 2016 | 13 ha | 50 ha | 63 ha |
| 2017 | 13 ha | 48 ha | 61 ha |
| 2018 | 6 ha | 42 ha | 48 ha |
| 2019 | 15 ha | 64 ha | 79 ha |
| 2020 | 17 ha | 81 ha | 98 ha |
| 2021 | 11 ha | 51 ha | 62 ha |
| 2022 | 16 ha | 31 ha | 47 ha |
| 2023 | 18 ha | 30 ha | 48 ha |
| 2024 | 8 ha | 25 ha | 33 ha |
| 2025 | 7 ha | 21 ha | 28 ha |
What is causing deforestation around Düzce?
- Loggingcan grow back69% · 819 ha
- Farms, pasture and plantationscleared for good17% · 200 ha
- Towns and roadscleared for good14% · 164 ha
Also: storms, floods and other natural causes, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 8,100 ha
- Forest in 2020
- 7,400 ha
- Overall change
- −697 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Düzce shrank from about 8,100 hectares to 7,400 hectares, a net loss of about 697 hectares (−8.6%). New forest grew on about 302 hectares, but 1,000 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Düzce
What is the air quality (AQI) in Düzce right now?
The latest reading for Düzce shows an AQI of 161 (Unhealthy), measured Nov 11, 19:00 local time by the Duzce, Turkey ground monitoring station, 2.1 km away, via OpenAQ. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Düzce today?
At AQI 161 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Düzce been like this week?
Over the last 7 days, the CAMS air-quality model put Düzce's daily AQI at 51 on average, from 35 on Nov 8 to an hourly peak of 74 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Düzce lost since 2001?
Since 2001, the area within 10 km of Düzce has lost about 1,190 hectares of forest (about 1,700 football pitches): 9.9% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 364 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 44 hectares a year in 2021–2025, down from 70 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Düzce shrank from about 8,100 hectares to 7,400 hectares, a net loss of about 697 hectares (−8.6%). New forest grew on about 302 hectares, but 1,000 hectares were lost.
What is the tree count in Düzce?
Düzce has an estimated 62,518 trees across the 12.57 km² measured — 19.9% tree cover, 20 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Düzce need?
Düzce needs roughly 63,146 more trees to close a 20-point shortfall against its 40% tree-cover target — about 1,389 t of extra CO₂ absorbed per year once grown.
How are Düzce's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Düzce, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Düzce; the tree count is an estimate derived from that cover.
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