City report · Henan, China
Zhoukou Air quality today
Air quality in Zhoukou currently reads AQI 89 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 89
Moderate
- PM2.5, fine particles (µg/m³)
- 28.5
- tree cover
- 20.3%
- trees in this area
- 60.6K
- more trees needed
- 29.0K
Measured across a 2 km radius around Chuanhui District, Zhoukou, Henan, China (12.57 km²), from a satellite image of Sep 5, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Zhoukou · AQI 89 (Moderate)
Zhoukou's tree count comes to 60,649 trees across 11.95 km² of land, 10 points below the 30% tree-cover level considered healthy for this area, so roughly 28,980 more trees would close the gap.
Air quality detail
Air quality in Zhoukou today: AQI 89, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 205 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 7 station cities within 205 km, e.g. Bozhou and Pingdingshan
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
28.5
PM10
31.5
NO₂
13.2
O₃
71.0
SO₂
7.1
CO
422.0
- 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 Zhoukou's daily AQI at 106 on average, from 66 on Nov 8 to an hourly peak of 159 on Nov 6.
Where Zhoukou stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Zhoukou: Below target
20.3% tree cover against a 30% healthy-neighborhood target, across 11.95 km² of land.
Trees in this area
60,649
Target trees
89,629
More trees needed
28,980
CO₂ if planted / yr
637.6 t
Deforestation · 2001–2025
How much forest has Zhoukou lost?
Since 2001, the area within 10 km of Zhoukou has lost about 14 hectares of forest (about 19 football pitches): 10% of the forest it had in 2000. Most of it (73%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 14 haabout 19 football pitches
- Share of its forest
- 10%of what there was in 2000
- Cleared for good
- 10 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 3 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 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | 2 ha | under 1 ha | 3 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | 1 ha | under 1 ha | 2 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 1 ha | under 1 ha | 1 ha |
| 2024 | under 1 ha | under 1 ha | 1 ha |
| 2025 | under 1 ha | under 1 ha | 1 ha |
What is causing deforestation around Zhoukou?
- Farms, pasture and plantationscleared for good44% · 6 ha
- Towns and roadscleared for good28% · 4 ha
- Loggingcan grow back11% · 2 ha
Also: 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
- 217 ha
- Forest in 2020
- 433 ha
- Overall change
- +216 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Zhoukou grew from about 217 hectares to 433 hectares, a net gain of about 216 hectares (+over 99%). New forest grew on about 226 hectares, while 10 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 Zhoukou
What is the air quality (AQI) in Zhoukou right now?
The latest reading for Zhoukou shows an AQI of 89 (Moderate), observed Nov 11, 16:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Zhoukou today?
At AQI 89 (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 Zhoukou been like this week?
Over the last 7 days, the CAMS air-quality model put Zhoukou's daily AQI at 106 on average, from 66 on Nov 8 to an hourly peak of 159 on Nov 6. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Zhoukou lost since 2001?
Since 2001, the area within 10 km of Zhoukou has lost about 14 hectares of forest (about 19 football pitches): 10% of the forest it had in 2000. Most of it (73%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Zhoukou grew from about 217 hectares to 433 hectares, a net gain of about 216 hectares (+over 99%). New forest grew on about 226 hectares, while 10 hectares were lost.
What is the tree count in Zhoukou?
Zhoukou has an estimated 60,649 trees across the 11.95 km² of land measured — 20.3% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Zhoukou need?
Zhoukou needs roughly 28,980 more trees to close a 10-point shortfall against its 30% tree-cover target — about 637.6 t of extra CO₂ absorbed per year once grown.
How are Zhoukou's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Chuanhui District; the tree count is an estimate derived from that cover.
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