City report · Jiangxi, China
Jiujiang Air quality today
Air quality in Jiujiang currently reads AQI 83 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 83
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 26.4
- tree cover
- 20.2%
- trees in this area
- 60.7K
- more trees needed
- 29.5K
Measured across a 2 km radius around Xunyang District, Jiujiang, Jiangxi, China (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Jiujiang · AQI 83 (Moderate)
Jiujiang's tree count comes to 60,731 trees across 12.03 km² of land, 10 points below the 30% tree-cover level considered healthy for this area, so roughly 29,464 more trees would close the gap.
Air quality detail
Air quality in Jiujiang today: AQI 83, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Jiujiang (九江), 0 m away · median of 4 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
26.4
PM10
48.6
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Jiangxi Province Environmental Protection Agency (江西省环境保护厅)
- 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 Jiujiang's daily AQI at 87 on average, from 60 on Nov 8 to an hourly peak of 156 on Nov 6.
Where Jiujiang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Jiujiang: Below target
20.2% tree cover against a 30% healthy-neighborhood target, across 12.03 km² of land.
Trees in this area
60,731
Target trees
90,195
More trees needed
29,464
CO₂ if planted / yr
648.2 t
Deforestation · 2001–2025
How much forest has Jiujiang lost?
Since 2001, the area within 10 km of Jiujiang has lost about 492 hectares of forest (about 690 football pitches): 11% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from December 2017 of a 5 × 5 km area about 4 km southeast of the city center.
- Forest lost since 2001
- 492 haabout 690 football pitches
- Share of its forest
- 11%of what there was in 2000
- Cleared for good
- 450 hadeforestation: turned into farms, mines or towns
The worst year was 2006, when about 57 hectares of forest were lost.
Jiujiang's full deforestation reportHectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 8 ha | 2 ha | 10 ha |
| 2002 | 5 ha | 2 ha | 7 ha |
| 2003 | 19 ha | under 1 ha | 20 ha |
| 2004 | 9 ha | 4 ha | 14 ha |
| 2005 | 8 ha | 4 ha | 11 ha |
| 2006 | 56 ha | under 1 ha | 57 ha |
| 2007 | 44 ha | 4 ha | 48 ha |
| 2008 | 51 ha | 5 ha | 55 ha |
| 2009 | 43 ha | 1 ha | 44 ha |
| 2010 | 50 ha | 5 ha | 55 ha |
| 2011 | 26 ha | under 1 ha | 26 ha |
| 2012 | 49 ha | 2 ha | 51 ha |
| 2013 | 6 ha | under 1 ha | 6 ha |
| 2014 | 3 ha | under 1 ha | 4 ha |
| 2015 | 3 ha | 7 ha | 10 ha |
| 2016 | 2 ha | under 1 ha | 3 ha |
| 2017 | 5 ha | under 1 ha | 5 ha |
| 2018 | 11 ha | under 1 ha | 11 ha |
| 2019 | 10 ha | under 1 ha | 10 ha |
| 2020 | 9 ha | under 1 ha | 9 ha |
| 2021 | 17 ha | 1 ha | 18 ha |
| 2022 | 3 ha | under 1 ha | 4 ha |
| 2023 | 4 ha | under 1 ha | 4 ha |
| 2024 | 7 ha | under 1 ha | 8 ha |
| 2025 | 3 ha | under 1 ha | 3 ha |
What is causing deforestation around Jiujiang?
- Towns and roadscleared for good89% · 439 ha
- Loggingcan grow back7.3% · 36 ha
- Farms, pasture and plantationscleared for good2.3% · 11 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
- 7,400 ha
- Forest in 2020
- 7,230 ha
- Overall change
- −172 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Jiujiang shrank from about 7,400 hectares to 7,230 hectares, a net loss of about 172 hectares (−2.3%). New forest grew on about 276 hectares, but 448 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 Jiujiang
What is the air quality (AQI) in Jiujiang right now?
The latest reading for Jiujiang shows an AQI of 83 (Moderate), measured Nov 11, 23:00 local time by 4 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Jiujiang (九江), 0 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Jiujiang today?
At AQI 83 (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 Jiujiang been like this week?
Over the last 7 days, the CAMS air-quality model put Jiujiang's daily AQI at 87 on average, from 60 on Nov 8 to an hourly peak of 156 on Nov 6. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Jiujiang lost since 2001?
Since 2001, the area within 10 km of Jiujiang has lost about 492 hectares of forest (about 690 football pitches): 11% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Jiujiang shrank from about 7,400 hectares to 7,230 hectares, a net loss of about 172 hectares (−2.3%). New forest grew on about 276 hectares, but 448 hectares were lost.
What is the tree count in Jiujiang?
Jiujiang has an estimated 60,731 trees across the 12.03 km² of land measured — 20.2% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Jiujiang need?
Jiujiang needs roughly 29,464 more trees to close a 10-point shortfall against its 30% tree-cover target — about 648.2 t of extra CO₂ absorbed per year once grown.
How are Jiujiang's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Xunyang 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 Xunyang District; the tree count is an estimate derived from that cover.
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