City report · Chongqing, China
Sanhe, Chongqing Air quality today
Air quality in Sanhe, Chongqing currently reads AQI 87 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 87
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 30.5
- tree cover
- 33.3%
- trees in this area
- 79.2K
- more trees needed
- 0
Measured across a 2 km radius around Fengdu County, Chongqing, China (12.57 km²), from a satellite image of Sep 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Sanhe, Chongqing · AQI 87 (Moderate)
Sanhe, Chongqing's tree count comes to 79,194 trees across 9.52 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Sanhe, Chongqing today: AQI 87, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 00:00 local time via Open-Meteo / CAMS, corrected with 10 ground-station cities within 125 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 10 station cities within 125 km, e.g. Fuling District, Chongqing, China and Shizhu Tujia Autonomous County, Chongqing, China
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
30.5
PM10
46.7
NO₂
50.2
O₃
12.0
SO₂
17.3
CO
340.0
- 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 Sanhe, Chongqing's daily AQI at 91 on average, from 75 on Nov 9 to an hourly peak of 149 on Nov 5.
Where Sanhe, Chongqing stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Sanhe, Chongqing: Healthy tree cover
33.3% tree cover against a 30% healthy-neighborhood target, across 9.52 km² of land.
Trees in this area
79,194
Target trees
79,194
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Sanhe, Chongqing lost?
Since 2001, the area within 10 km of Sanhe, Chongqing has lost about 96 hectares of forest (about 140 football pitches): 1.2% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for mining and energy.
2017: satellite photo from October 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 96 haabout 140 football pitches
- Share of its forest
- 1.2%of what there was in 2000
- Cleared for good
- 78 hadeforestation: turned into farms, mines or towns
The worst year was 2025, when about 18 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 | 2 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 | 2 ha |
| 2009 | 2 ha | under 1 ha | 3 ha |
| 2010 | 5 ha | 1 ha | 6 ha |
| 2011 | 3 ha | 2 ha | 5 ha |
| 2012 | under 1 ha | under 1 ha | 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | 1 ha | under 1 ha | 2 ha |
| 2016 | 2 ha | under 1 ha | 2 ha |
| 2017 | under 1 ha | under 1 ha | 2 ha |
| 2018 | 6 ha | 1 ha | 7 ha |
| 2019 | 11 ha | under 1 ha | 11 ha |
| 2020 | 10 ha | under 1 ha | 11 ha |
| 2021 | 4 ha | 1 ha | 6 ha |
| 2022 | 3 ha | 3 ha | 6 ha |
| 2023 | 5 ha | 2 ha | 7 ha |
| 2024 | 5 ha | under 1 ha | 5 ha |
| 2025 | 17 ha | 1 ha | 18 ha |
What is causing deforestation around Sanhe, Chongqing?
- Mining and energycleared for good35% · 34 ha
- Towns and roadscleared for good24% · 24 ha
- Farms, pasture and plantationscleared for good21% · 20 ha
Also: logging, 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
- 21,800 ha
- Forest in 2020
- 21,700 ha
- Overall change
- −120 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Sanhe, Chongqing stayed about the same size, at about 21,700 hectares: new forest grew on about 141 hectares, and about 261 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 Sanhe, Chongqing
What is the air quality (AQI) in Sanhe, Chongqing right now?
The latest reading for Sanhe, Chongqing shows an AQI of 87 (Moderate), observed Nov 11, 00:00 local time via Open-Meteo / CAMS, corrected with 10 ground-station cities within 125 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 Sanhe, Chongqing today?
At AQI 87 (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 Sanhe, Chongqing been like this week?
Over the last 7 days, the CAMS air-quality model put Sanhe, Chongqing's daily AQI at 91 on average, from 75 on Nov 9 to an hourly peak of 149 on Nov 5. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Sanhe, Chongqing lost since 2001?
Since 2001, the area within 10 km of Sanhe, Chongqing has lost about 96 hectares of forest (about 140 football pitches): 1.2% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for mining and energy. Comparing satellite maps from 2000 and 2020, the forest around Sanhe, Chongqing stayed about the same size, at about 21,700 hectares: new forest grew on about 141 hectares, and about 261 hectares were lost.
What is the tree count in Sanhe, Chongqing?
Sanhe, Chongqing has an estimated 79,194 trees across the 9.52 km² of land measured — 33.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Sanhe, Chongqing need?
Sanhe, Chongqing has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Sanhe, Chongqing'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 Fengdu County; the tree count is an estimate derived from that cover.
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