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Airleaf

City report · Chongqing, China

Zhonghe Air quality today

Air quality in Zhonghe currently reads AQI 69 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.

Air quality right now

AQI 69

Moderate

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
18.8
tree cover
19.4%
trees in this area
60.9K
more trees needed
33.3K

Measured across a 2 km radius around Xiushan Tujia and Miao Autonomous County, Chongqing, China (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Zhonghe · AQI 69 (Moderate)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 26, 2026

Zhonghe's tree count comes to 60,886 trees across 12.56 km² of land, 11 points below the 30% tree-cover level considered healthy for this area, so roughly 33,268 more trees would close the gap.

Air quality detail

Air quality in Zhonghe today: AQI 69, Moderate

Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.

Ground station · Xiushan County High School, Chongqing (重庆秀山县高级中学), 600 m away

Health signal

Unusually sensitive people should consider limiting long outdoor exertion.

PM2.5

18.8

PM10

40.0

NO₂

—

O₃

—

SO₂

—

CO

—

Data: World Air Quality Index Project, Chongqing Environmental Protection Bureau (重庆市主城区空气质量)

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 Zhonghe's daily AQI at 60 on average, from 28 on Nov 8 to an hourly peak of 101 on Nov 11.

Last 7 days · model estimateavg 60 · peak 101
Nov 5: AQI 57 (peak 93)Nov 6: AQI 56 (peak 83)Nov 7: AQI 48 (peak 87)Nov 8: AQI 28 (peak 55)Nov 9: AQI 60 (peak 65)Nov 10: AQI 68 (peak 96)Nov 11: AQI 101 (peak 101)
Nov 5Nov 11

Where Zhonghe stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Zhonghe: Below target

19.4% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.

11 points below target

Trees in this area

60,886

Target trees

94,154

More trees needed

33,268

CO₂ if planted / yr

731.9 t

Deforestation · 2001–2025

How much forest has Zhonghe lost?

Since 2001, the area within 10 km of Zhonghe has lost about 31 hectares of forest (about 43 football pitches): under 1% of the forest it had in 2000. The biggest cause was logging (41%), after which forest can grow back. About 13 hectares (42%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Zhonghe, July 2017

2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.

Forest lost since 2001
31 haabout 43 football pitches
Share of its forest
under 1%of what there was in 2000
Cleared for good
13 hadeforestation: turned into farms, mines or towns

The worst year was 2008, when about 12 hectares of forest were lost.

Forest lost each year around Zhonghe, 2001–2025

Hectares of forest lost each year

Forest lost each year around Zhonghe, 2001–2025. Use the left and right arrow keys to read each year.11.8

Show the figures as a table
Forest lost each year around Zhonghe, 2001–2025
YearCleared for goodCan grow backTotal
2001under 1 ha2 ha2 ha
2002under 1 haunder 1 haunder 1 ha
2003under 1 haunder 1 haunder 1 ha
2004under 1 haunder 1 haunder 1 ha
2005under 1 haunder 1 ha1 ha
2006under 1 haunder 1 haunder 1 ha
2007under 1 haunder 1 ha1 ha
20082 ha10 ha12 ha
2009under 1 haunder 1 haunder 1 ha
20101 haunder 1 ha2 ha
2011under 1 haunder 1 haunder 1 ha
2012under 1 haunder 1 haunder 1 ha
2013under 1 haunder 1 haunder 1 ha
2014under 1 haunder 1 haunder 1 ha
2015under 1 haunder 1 haunder 1 ha
2016under 1 haunder 1 haunder 1 ha
20171 haunder 1 ha1 ha
2018under 1 haunder 1 haunder 1 ha
20191 haunder 1 ha2 ha
2020under 1 haunder 1 haunder 1 ha
2021under 1 haunder 1 haunder 1 ha
2022under 1 haunder 1 ha1 ha
2023under 1 haunder 1 haunder 1 ha
20242 haunder 1 ha3 ha
2025under 1 haunder 1 haunder 1 ha

What is causing deforestation around Zhonghe?

  • Loggingcan grow back41% · 13 ha
  • Towns and roadscleared for good35% · 11 ha
  • Farms, pasture and plantationscleared for good7.1% · 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
18,100 ha
Forest in 2020
19,000 ha
Overall change
+839 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Zhonghe grew from about 18,100 hectares to 19,000 hectares, a net gain of about 839 hectares (+4.6%). New forest grew on about 890 hectares, while 51 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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Zhonghe air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Zhonghe

What is the air quality (AQI) in Zhonghe right now?

The latest reading for Zhonghe shows an AQI of 69 (Moderate), measured Nov 11, 22:00 local time by the Xiushan County High School, Chongqing (重庆秀山县高级中学) ground monitoring station, 600 m away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.

Is it safe to exercise outside in Zhonghe today?

At AQI 69 (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 Zhonghe been like this week?

Over the last 7 days, the CAMS air-quality model put Zhonghe's daily AQI at 60 on average, from 28 on Nov 8 to an hourly peak of 101 on Nov 11. On 1 of those days the average was above 100, unhealthy for sensitive groups.

How much forest has the area around Zhonghe lost since 2001?

Since 2001, the area within 10 km of Zhonghe has lost about 31 hectares of forest (about 43 football pitches): under 1% of the forest it had in 2000. The biggest cause was logging (41%), after which forest can grow back. About 13 hectares (42%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Zhonghe grew from about 18,100 hectares to 19,000 hectares, a net gain of about 839 hectares (+4.6%). New forest grew on about 890 hectares, while 51 hectares were lost.

What is the tree count in Zhonghe?

Zhonghe has an estimated 60,886 trees across the 12.56 km² of land measured — 19.4% tree cover, 11 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Zhonghe need?

Zhonghe needs roughly 33,268 more trees to close a 11-point shortfall against its 30% tree-cover target — about 731.9 t of extra CO₂ absorbed per year once grown.

How are Zhonghe's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Xiushan Tujia and Miao Autonomous County, 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 Xiushan Tujia and Miao Autonomous County; the tree count is an estimate derived from that cover.

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