City report · Chongqing, China
Baisha Air quality today
Air quality in Baisha currently reads AQI 110 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 110
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 45.0
- tree cover
- 52.9%
- trees in this area
- 135K
- more trees needed
- 0
Measured across a 2 km radius around Jiangjin 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.
Baisha · AQI 110 (Unhealthy for sensitive groups)
Baisha's tree count comes to 134,946 trees across 10.21 km² of land, already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Baisha today: AQI 110, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 9 ground-station cities within 85 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 9 station cities within 85 km, e.g. Jiangjin District, Chongqing, China and Yongchuan District, Chongqing, China
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
45.0
PM10
55.8
NO₂
57.6
O₃
25.0
SO₂
19.7
CO
589.0
- 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 Baisha's daily AQI at 106 on average, from 74 on Nov 8 to an hourly peak of 161 on Nov 7.
Where Baisha stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Baisha: Healthy tree cover
52.9% tree cover against a 35% healthy-neighborhood target, across 10.21 km² of land.
Trees in this area
134,946
Target trees
134,946
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Baisha lost?
Since 2001, the area within 10 km of Baisha has lost about 74 hectares of forest (about 100 football pitches): 1.2% of the forest it had in 2000. Most of it (79%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from October 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 74 haabout 100 football pitches
- Share of its forest
- 1.2%of what there was in 2000
- Cleared for good
- 59 hadeforestation: turned into farms, mines or towns
The worst year was 2021, when about 15 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 | 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | 1 ha | 2 ha | 3 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 1 ha | 1 ha | 2 ha |
| 2013 | 1 ha | under 1 ha | 2 ha |
| 2014 | 1 ha | under 1 ha | 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 7 ha | under 1 ha | 8 ha |
| 2017 | 4 ha | under 1 ha | 4 ha |
| 2018 | 7 ha | 2 ha | 8 ha |
| 2019 | under 1 ha | 7 ha | 7 ha |
| 2020 | 2 ha | under 1 ha | 2 ha |
| 2021 | 15 ha | under 1 ha | 15 ha |
| 2022 | 1 ha | under 1 ha | 1 ha |
| 2023 | 2 ha | under 1 ha | 2 ha |
| 2024 | 11 ha | under 1 ha | 12 ha |
| 2025 | 2 ha | under 1 ha | 3 ha |
What is causing deforestation around Baisha?
- Towns and roadscleared for good41% · 30 ha
- Farms, pasture and plantationscleared for good38% · 29 ha
- Loggingcan grow back10% · 8 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
- 20,600 ha
- Forest in 2020
- 20,600 ha
- Overall change
- +43 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Baisha stayed about the same size, at about 20,600 hectares: new forest grew on about 191 hectares, and about 148 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 Baisha
What is the air quality (AQI) in Baisha right now?
The latest reading for Baisha shows an AQI of 110 (Unhealthy for sensitive groups), observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 9 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Baisha today?
At AQI 110 (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 Baisha been like this week?
Over the last 7 days, the CAMS air-quality model put Baisha's daily AQI at 106 on average, from 74 on Nov 8 to an hourly peak of 161 on Nov 7. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Baisha lost since 2001?
Since 2001, the area within 10 km of Baisha has lost about 74 hectares of forest (about 100 football pitches): 1.2% of the forest it had in 2000. Most of it (79%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Baisha stayed about the same size, at about 20,600 hectares: new forest grew on about 191 hectares, and about 148 hectares were lost.
What is the tree count in Baisha?
Baisha has an estimated 134,946 trees across the 10.21 km² of land measured — 52.9% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Baisha need?
Baisha has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Baisha'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 Jiangjin District; the tree count is an estimate derived from that cover.
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