Turkey · Kocaeli · 3 cities
Air quality in Kocaeli today The AQI right now, city by city
Right now, Gebze has the cleanest air of the 3 cities we track in Kocaeli (AQI 76, Moderate), and İzmit the worst (AQI 93, Moderate). İzmit has the most tree cover, at 20.7% — #18 of 95 cities measured in Turkey.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
AQI 87
Average right now
Moderate
- cities tracked
- 3
- average tree cover
- 15.7%
- Turkey: 14.2%
- worst air now: İzmit
- 93
- cleanest air now: Gebze
- 76
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Kocaeli · average AQI 87
Air quality today across Kocaeli, city by city
| Gebze | 76Moderate | 11.7% | 57.5K | #36 of 95 |
|---|---|---|---|---|
| İzmit | 93Moderate | 20.7% | 22.1K | #18 of 95 |
| Derince | 92Moderate | 14.7% | 38.2K | #27 of 95 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Turkey.
Deforestation · 2001–2025
How much forest has Kocaeli lost?
Since 2001, Kocaeli has lost about 15,700 hectares of forest (about 22,000 football pitches): 10% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 3,240 hectares (21%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 15,700 haabout 22,000 football pitches
- Share of its forest
- 10%of what there was in 2000
- Cleared for good
- 3,240 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 181 ha | 446 ha | 627 ha |
| 2002 | 66 ha | 312 ha | 378 ha |
| 2003 | 34 ha | 114 ha | 148 ha |
| 2004 | 173 ha | 584 ha | 757 ha |
| 2005 | 56 ha | 378 ha | 434 ha |
| 2006 | 109 ha | 394 ha | 503 ha |
| 2007 | 93 ha | 288 ha | 381 ha |
| 2008 | 70 ha | 474 ha | 544 ha |
| 2009 | 53 ha | 587 ha | 640 ha |
| 2010 | 79 ha | 633 ha | 712 ha |
| 2011 | 55 ha | 399 ha | 454 ha |
| 2012 | 108 ha | 590 ha | 698 ha |
| 2013 | 43 ha | 464 ha | 507 ha |
| 2014 | 80 ha | 595 ha | 675 ha |
| 2015 | 65 ha | 707 ha | 772 ha |
| 2016 | 114 ha | 446 ha | 560 ha |
| 2017 | 529 ha | 694 ha | 1,220 ha |
| 2018 | 373 ha | 416 ha | 789 ha |
| 2019 | 87 ha | 339 ha | 426 ha |
| 2020 | 121 ha | 698 ha | 819 ha |
| 2021 | 152 ha | 844 ha | 996 ha |
| 2022 | 147 ha | 543 ha | 690 ha |
| 2023 | 180 ha | 512 ha | 692 ha |
| 2024 | 84 ha | 218 ha | 302 ha |
| 2025 | 190 ha | 736 ha | 926 ha |
Forest loss has stayed about the same: about 721 hectares a year in 2021–2025, against 763 hectares a year in 2016–2020. The worst year was 2017, when about 1,220 hectares of forest were lost.
What is causing deforestation in Kocaeli?
- Loggingcan grow back76% · 11,800 ha
- Mining and energycleared for good9.4% · 1,480 ha
- Towns and roadscleared for good8.2% · 1,280 ha
Also: farms, pasture and plantations, wildfires, 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.
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. How it's measured
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