City report · Chongqing, China
Gunan Air quality today
Air quality in Gunan currently reads AQI 119 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 119
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 42.8
- tree cover
- 53.1%
- trees in this area
- 164K
- more trees needed
- 0
Measured across a 2 km radius around Qijiang District, 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.
Gunan · AQI 119 (Unhealthy for sensitive groups)
Gunan's tree count comes to 164,483 trees across 12.39 km² of land, already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Gunan today: AQI 119, Unhealthy for sensitive groups
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 · tān zǐ kou, Chongqing (重庆滩子口), 1.2 km away
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
42.8
PM10
79.2
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
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Gunan's daily AQI at 96 on average, from 69 on Nov 7 to an hourly peak of 142 on Nov 5.
Where Gunan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Gunan: Healthy tree cover
53.1% tree cover against a 35% healthy-neighborhood target, across 12.39 km² of land.
Trees in this area
164,483
Target trees
164,483
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Gunan lost?
Since 2001, the area within 10 km of Gunan has lost about 100 hectares of forest (about 140 football pitches): 1.1% of the forest it had in 2000. Most of it (85%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from October 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 100 haabout 140 football pitches
- Share of its forest
- 1.1%of what there was in 2000
- Cleared for good
- 85 hadeforestation: turned into farms, mines or towns
The worst year was 2025, when about 23 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 | 1 ha | 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 2 ha | 2 ha | 3 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | 5 ha | under 1 ha | 6 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | 4 ha | under 1 ha | 4 ha |
| 2014 | 2 ha | under 1 ha | 3 ha |
| 2015 | under 1 ha | 1 ha | 1 ha |
| 2016 | under 1 ha | under 1 ha | 1 ha |
| 2017 | under 1 ha | under 1 ha | 1 ha |
| 2018 | 8 ha | under 1 ha | 9 ha |
| 2019 | 2 ha | under 1 ha | 2 ha |
| 2020 | 4 ha | under 1 ha | 4 ha |
| 2021 | 9 ha | under 1 ha | 9 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 7 ha | under 1 ha | 8 ha |
| 2024 | 17 ha | 5 ha | 22 ha |
| 2025 | 20 ha | 2 ha | 23 ha |
What is causing deforestation around Gunan?
- Towns and roadscleared for good65% · 65 ha
- Farms, pasture and plantationscleared for good18% · 18 ha
- Loggingcan grow back8.9% · 9 ha
Also: mining and energy, 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
- 23,600 ha
- Forest in 2020
- 23,700 ha
- Overall change
- +152 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Gunan stayed about the same size, at about 23,700 hectares: new forest grew on about 326 hectares, and about 174 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
In the same region
Measured cities near Gunan
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Gunan with anywhere
This place
Gunan
Use this data
Put Gunan's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Gunan
What is the air quality (AQI) in Gunan right now?
The latest reading for Gunan shows an AQI of 119 (Unhealthy for sensitive groups), measured Nov 11, 22:00 local time by the tān zǐ kou, Chongqing (重庆滩子口) ground monitoring station, 1.2 km away, via OpenAQ. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Gunan today?
At AQI 119 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Gunan been like this week?
Over the last 7 days, the CAMS air-quality model put Gunan's daily AQI at 96 on average, from 69 on Nov 7 to an hourly peak of 142 on Nov 5. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Gunan lost since 2001?
Since 2001, the area within 10 km of Gunan has lost about 100 hectares of forest (about 140 football pitches): 1.1% of the forest it had in 2000. Most of it (85%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Gunan stayed about the same size, at about 23,700 hectares: new forest grew on about 326 hectares, and about 174 hectares were lost.
What is the tree count in Gunan?
Gunan has an estimated 164,483 trees across the 12.39 km² of land measured — 53.1% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Gunan need?
Gunan has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Gunan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Qijiang District, 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 Qijiang District; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address