City report · Chongqing, China
Jijiang Air quality today
Air quality in Jijiang currently reads AQI 159 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 159
Unhealthy
- PM2.5, fine particles (µg/m³)
- 67.1
- tree cover
- 44.5%
- trees in this area
- 102K
- 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.
Jijiang · AQI 159 (Unhealthy)
Jijiang's tree count comes to 102,194 trees across 9.19 km² of land, already at or above the 40% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Jijiang today: AQI 159, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 21:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Jiangjin Middle School, Chongqing (重庆江津一中), 1.6 km away · median of 2 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
67.1
PM10
76.2
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
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Jijiang's daily AQI at 111 on average, from 81 on Nov 8 to an hourly peak of 168 on Nov 7.
Where Jijiang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Jijiang: Healthy tree cover
44.5% tree cover against a 40% healthy-neighborhood target, across 9.19 km² of land.
Trees in this area
102,194
Target trees
102,194
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Jijiang lost?
Since 2001, the area within 10 km of Jijiang has lost about 119 hectares of forest (about 170 football pitches): 3.5% of the forest it had in 2000. Most of it (63%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 119 haabout 170 football pitches
- Share of its forest
- 3.5%of what there was in 2000
- Cleared for good
- 75 hadeforestation: turned into farms, mines or towns
The worst year was 2024, when about 34 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 | 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 | 5 ha | 3 ha | 8 ha |
| 2008 | under 1 ha | 2 ha | 2 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | 2 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | 1 ha |
| 2013 | 3 ha | 9 ha | 12 ha |
| 2014 | under 1 ha | 1 ha | 2 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 4 ha | under 1 ha | 5 ha |
| 2017 | 2 ha | under 1 ha | 2 ha |
| 2018 | 1 ha | 2 ha | 3 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 4 ha | under 1 ha | 5 ha |
| 2021 | 6 ha | under 1 ha | 7 ha |
| 2022 | 2 ha | under 1 ha | 2 ha |
| 2023 | 2 ha | under 1 ha | 2 ha |
| 2024 | 33 ha | 1 ha | 34 ha |
| 2025 | 6 ha | 23 ha | 29 ha |
What is causing deforestation around Jijiang?
- Towns and roadscleared for good62% · 74 ha
- Loggingcan grow back20% · 24 ha
- Unknown causescause unknown18% · 21 ha
Also: farms, pasture and plantations.
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
- 15,700 ha
- Forest in 2020
- 15,800 ha
- Overall change
- +68 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Jijiang stayed about the same size, at about 15,800 hectares: new forest grew on about 280 hectares, and about 211 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 Jijiang
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Jijiang with anywhere
This place
Jijiang
Use this data
Put Jijiang's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Jijiang
What is the air quality (AQI) in Jijiang right now?
The latest reading for Jijiang shows an AQI of 159 (Unhealthy), measured Nov 11, 21:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Jiangjin Middle School, Chongqing (重庆江津一中), 1.6 km away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Jijiang today?
At AQI 159 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Jijiang been like this week?
Over the last 7 days, the CAMS air-quality model put Jijiang's daily AQI at 111 on average, from 81 on Nov 8 to an hourly peak of 168 on Nov 7. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Jijiang lost since 2001?
Since 2001, the area within 10 km of Jijiang has lost about 119 hectares of forest (about 170 football pitches): 3.5% of the forest it had in 2000. Most of it (63%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Jijiang stayed about the same size, at about 15,800 hectares: new forest grew on about 280 hectares, and about 211 hectares were lost.
What is the tree count in Jijiang?
Jijiang has an estimated 102,194 trees across the 9.19 km² of land measured — 44.5% tree cover, already past the 40% tree-cover target set for this area.
How many more trees does Jijiang need?
Jijiang has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Jijiang's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Jiangjin 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 Jiangjin 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