City report · Chongqing, China
Zitong Air quality today
Air quality in Zitong currently reads AQI 140 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 140
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 58.3
- tree cover
- 41.9%
- trees in this area
- 120K
- more trees needed
- 0
Measured across a 2 km radius around Tongnan District, Chongqing, China (12.57 km²), from a satellite image of Sep 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Zitong · AQI 140 (Unhealthy for sensitive groups)
Zitong's tree count comes to 119,523 trees across 11.41 km² of land, already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Zitong today: AQI 140, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 25 ground-station cities within 185 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 25 station cities within 185 km, e.g. Tongliang District, Chongqing, China and Suining
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
58.3
PM10
71.2
NO₂
55.8
O₃
4.0
SO₂
12.2
CO
436.0
- 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 Zitong's daily AQI at 96 on average, from 65 on Nov 8 to an hourly peak of 169 on Nov 7.
Where Zitong stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Zitong: Healthy tree cover
41.9% tree cover against a 35% healthy-neighborhood target, across 11.41 km² of land.
Trees in this area
119,523
Target trees
119,523
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Zitong lost?
Since 2001, the area within 10 km of Zitong has lost about 63 hectares of forest (about 88 football pitches): 2.7% of the forest it had in 2000. Most of it (84%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 63 haabout 88 football pitches
- Share of its forest
- 2.7%of what there was in 2000
- Cleared for good
- 53 hadeforestation: turned into farms, mines or towns
The worst year was 2025, when about 14 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 | under 1 ha | under 1 ha | under 1 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 | 12 ha | under 1 ha | 13 ha |
| 2018 | 2 ha | under 1 ha | 2 ha |
| 2019 | 4 ha | under 1 ha | 4 ha |
| 2020 | 11 ha | under 1 ha | 12 ha |
| 2021 | 6 ha | under 1 ha | 6 ha |
| 2022 | 3 ha | under 1 ha | 3 ha |
| 2023 | 2 ha | under 1 ha | 3 ha |
| 2024 | 1 ha | under 1 ha | 2 ha |
| 2025 | 8 ha | 6 ha | 14 ha |
What is causing deforestation around Zitong?
- Towns and roadscleared for good74% · 46 ha
- Mining and energycleared for good5.9% · 4 ha
- Farms, pasture and plantationscleared for good4.3% · 3 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
- 15,400 ha
- Forest in 2020
- 15,500 ha
- Overall change
- +113 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Zitong stayed about the same size, at about 15,500 hectares: new forest grew on about 278 hectares, and about 165 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 Zitong
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Zitong with anywhere
This place
Zitong
Use this data
Put Zitong's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Zitong
What is the air quality (AQI) in Zitong right now?
The latest reading for Zitong shows an AQI of 140 (Unhealthy for sensitive groups), observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 25 ground-station cities within 185 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 Zitong today?
At AQI 140 (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 Zitong been like this week?
Over the last 7 days, the CAMS air-quality model put Zitong's daily AQI at 96 on average, from 65 on Nov 8 to an hourly peak of 169 on Nov 7. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Zitong lost since 2001?
Since 2001, the area within 10 km of Zitong has lost about 63 hectares of forest (about 88 football pitches): 2.7% of the forest it had in 2000. Most of it (84%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Zitong stayed about the same size, at about 15,500 hectares: new forest grew on about 278 hectares, and about 165 hectares were lost.
What is the tree count in Zitong?
Zitong has an estimated 119,523 trees across the 11.41 km² of land measured — 41.9% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Zitong need?
Zitong has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Zitong'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 Tongnan 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