City report · Kocaeli, Turkey
İzmit Air quality today
Air quality in İzmit currently reads AQI 93 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 93
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 31.6
- tree cover
- 20.7%
- trees in this area
- 49.2K
- more trees needed
- 22.1K
Measured across a 2 km radius around İzmit, Kocaeli, Türkiye (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
İzmit · AQI 93 (Moderate)
İzmit's tree count comes to 49,228 trees across 9.52 km² of land, 9 points below the 30% tree-cover level considered healthy for this area, so roughly 22,117 more trees would close the gap.
Air quality detail
Air quality in İzmit today: AQI 93, Moderate
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 · Kocaeli, Turkey, 1.9 km away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
31.6
PM10
43.2
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Turkey National Air Quality Monitoring Network (Ulusal Hava Kalitesi İzleme Ağı)
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put İzmit's daily AQI at 59 on average, from 45 on Nov 6 to an hourly peak of 115 on Nov 9.
Where İzmit stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in İzmit: Below target
20.7% tree cover against a 30% healthy-neighborhood target, across 9.52 km² of land.
Trees in this area
49,228
Target trees
71,345
More trees needed
22,117
CO₂ if planted / yr
486.6 t
Deforestation · 2001–2025
How much forest has İzmit lost?
Since 2001, the area within 10 km of İzmit has lost about 2,500 hectares of forest (about 3,500 football pitches): 33% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 326 hectares (13%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 2,500 haabout 3,500 football pitches
- Share of its forest
- 33%of what there was in 2000
- Cleared for good
- 326 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 56 hectares a year in 2021–2025, against 72 hectares a year in 2016–2020. The worst year was 2009, when about 304 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 | 37 ha | 9 ha | 47 ha |
| 2002 | 5 ha | 5 ha | 10 ha |
| 2003 | 3 ha | 4 ha | 7 ha |
| 2004 | 16 ha | 45 ha | 61 ha |
| 2005 | 14 ha | 38 ha | 52 ha |
| 2006 | 8 ha | 67 ha | 74 ha |
| 2007 | 5 ha | 48 ha | 53 ha |
| 2008 | 7 ha | 254 ha | 261 ha |
| 2009 | under 1 ha | 303 ha | 304 ha |
| 2010 | 2 ha | 203 ha | 205 ha |
| 2011 | 11 ha | 139 ha | 150 ha |
| 2012 | 28 ha | 176 ha | 204 ha |
| 2013 | 9 ha | 149 ha | 157 ha |
| 2014 | 14 ha | 190 ha | 204 ha |
| 2015 | 7 ha | 64 ha | 72 ha |
| 2016 | 25 ha | 1 ha | 26 ha |
| 2017 | 51 ha | 44 ha | 95 ha |
| 2018 | 40 ha | 37 ha | 77 ha |
| 2019 | 11 ha | 19 ha | 30 ha |
| 2020 | 3 ha | 132 ha | 135 ha |
| 2021 | 3 ha | 67 ha | 70 ha |
| 2022 | 9 ha | 84 ha | 93 ha |
| 2023 | 9 ha | 64 ha | 73 ha |
| 2024 | 5 ha | 24 ha | 30 ha |
| 2025 | 4 ha | 11 ha | 15 ha |
What is causing deforestation around İzmit?
- Loggingcan grow back82% · 2,050 ha
- Towns and roadscleared for good8.7% · 217 ha
- Wildfirescan grow back4.7% · 118 ha
Also: mining and energy, farms, pasture and plantations, 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
- 7,880 ha
- Forest in 2020
- 7,220 ha
- Overall change
- −659 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around İzmit shrank from about 7,880 hectares to 7,220 hectares, a net loss of about 659 hectares (−8.4%). New forest grew on about 125 hectares, but 783 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 İzmit
What is the air quality (AQI) in İzmit right now?
The latest reading for İzmit shows an AQI of 93 (Moderate), measured Nov 11, 19:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Kocaeli, Turkey, 1.9 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in İzmit today?
At AQI 93 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in İzmit been like this week?
Over the last 7 days, the CAMS air-quality model put İzmit's daily AQI at 59 on average, from 45 on Nov 6 to an hourly peak of 115 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around İzmit lost since 2001?
Since 2001, the area within 10 km of İzmit has lost about 2,500 hectares of forest (about 3,500 football pitches): 33% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 326 hectares (13%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 56 hectares a year in 2021–2025, against 72 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around İzmit shrank from about 7,880 hectares to 7,220 hectares, a net loss of about 659 hectares (−8.4%). New forest grew on about 125 hectares, but 783 hectares were lost.
What is the tree count in İzmit?
İzmit has an estimated 49,228 trees across the 9.52 km² of land measured — 20.7% tree cover, 9 percentage points short of the 30% tree-cover target set for this area.
How many more trees does İzmit need?
İzmit needs roughly 22,117 more trees to close a 9-point shortfall against its 30% tree-cover target — about 486.6 t of extra CO₂ absorbed per year once grown.
How are İzmit's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near İzmit, 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 İzmit; the tree count is an estimate derived from that cover.
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