China · Jiangsu · 31 cities
Air quality in Jiangsu today The AQI right now, city by city
Right now, Jiangyin has the cleanest air of the 31 cities we track in Jiangsu (AQI 74, Moderate), and Zhangjiagang the worst (AQI 165, Unhealthy). Tongshan has the most tree cover, at 34.1% — #110 of 639 cities measured in China.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
AQI 120
Average right now
Unhealthy for sensitive groups
- cities tracked
- 31
- average tree cover
- 20.7%
- China: 22.9%
- worst air now: Zhangjiagang
- 165
- cleanest air now: Jiangyin
- 74
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Jiangsu · average AQI 120
Air quality today across Jiangsu, city by city
| Nanjing | 110Unhealthy for sensitive groups | 28.4% | 19.2K | #168 of 639 |
|---|---|---|---|---|
| Suzhou | 84Moderate | 20.9% | 28.5K | #295 of 639 |
| Yangzhou | 124Unhealthy for sensitive groups | 21.4% | 42.5K | #285 of 639 |
| Huai'an | 134Unhealthy for sensitive groups | 17.2% | 55.7K | #378 of 639 |
| Wuxi | 112Unhealthy for sensitive groups | 25.3% | 29.4K | #224 of 639 |
| Changzhou | 163Unhealthy | 22.5% | 54.8K | #259 of 639 |
| Nantong | 84Moderate | 11.8% | 54.7K | #508 of 639 |
| Kunshan | 84Moderate | 21.5% | 26.6K | #281 of 639 |
| Lianyungang | 152Unhealthy | 21.9% | 56.7K | #273 of 639 |
| Jiangyin | 74Moderate | 17.6% | 38.8K | #372 of 639 |
| Changshu | 157Unhealthy | 20.8% | 58.8K | #297 of 639 |
| Yancheng | 152Unhealthy | 13.5% | 82.1K | #464 of 639 |
| Taizhou | 137Unhealthy for sensitive groups | 13.2% | 66.3K | #469 of 639 |
| Suqian | 142Unhealthy for sensitive groups | 18.6% | 48.0K | #351 of 639 |
| Zhangjiagang | 165Unhealthy | 26.8% | 41.3K | #199 of 639 |
| Yixing | 108Unhealthy for sensitive groups | 20.0% | 43.6K | #315 of 639 |
| Xuzhou | 127Unhealthy for sensitive groups | 26.2% | 26.6K | #209 of 639 |
| Zhenjiang | 159Unhealthy | 26.7% | 36.4K | #200 of 639 |
| Taicang | 88Moderate | 19.3% | 32.9K | #333 of 639 |
| Pizhou | 147Unhealthy for sensitive groups | 15.1% | 60.3K | #432 of 639 |
| Tongshan | 127Unhealthy for sensitive groups | 34.1% | 2.8K | #110 of 639 |
| Xinyi, Jiangsu | 120Unhealthy for sensitive groups | 16.1% | 56.5K | #407 of 639 |
| Dongtai | 120Unhealthy for sensitive groups | 9.6% | 78.4K | #560 of 639 |
| Rugao | 83Moderate | 33.0% | — | #123 of 639 |
| Suicheng | 111Unhealthy for sensitive groups | 16.9% | 56.9K | #384 of 639 |
| Peicheng | 107Unhealthy for sensitive groups | 18.7% | 51.0K | #348 of 639 |
| Zhenzhou | 124Unhealthy for sensitive groups | 21.3% | 42.9K | #286 of 639 |
| Fengcheng, Jiangsu | 76Moderate | 19.5% | 32.9K | #326 of 639 |
| Jiawang | 134Unhealthy for sensitive groups | 16.1% | 59.3K | #404 of 639 |
| Datun | 107Unhealthy for sensitive groups | 26.6% | 26.4K | #202 of 639 |
| Xinghua | 116Unhealthy for sensitive groups | 20.7% | 42.2K | #299 of 639 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in China.
Deforestation · 2001–2025
How much forest has Jiangsu lost?
Since 2001, Jiangsu has lost about 8,630 hectares of forest (about 12,000 football pitches): 5.8% of the forest it had in 2000. Most of it (62%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
- Forest lost since 2001
- 8,630 haabout 12,000 football pitches
- Share of its forest
- 5.8%of what there was in 2000
- Cleared for good
- 5,380 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 93 ha | 188 ha | 281 ha |
| 2002 | 69 ha | 151 ha | 220 ha |
| 2003 | 57 ha | 41 ha | 98 ha |
| 2004 | 254 ha | 132 ha | 386 ha |
| 2005 | 194 ha | 184 ha | 378 ha |
| 2006 | 272 ha | 204 ha | 476 ha |
| 2007 | 175 ha | 212 ha | 387 ha |
| 2008 | 348 ha | 224 ha | 572 ha |
| 2009 | 197 ha | 228 ha | 425 ha |
| 2010 | 398 ha | 302 ha | 700 ha |
| 2011 | 406 ha | 175 ha | 581 ha |
| 2012 | 196 ha | 104 ha | 300 ha |
| 2013 | 111 ha | 32 ha | 143 ha |
| 2014 | 97 ha | 44 ha | 141 ha |
| 2015 | 155 ha | 68 ha | 223 ha |
| 2016 | 251 ha | 74 ha | 325 ha |
| 2017 | 427 ha | 156 ha | 583 ha |
| 2018 | 358 ha | 104 ha | 462 ha |
| 2019 | 237 ha | 84 ha | 321 ha |
| 2020 | 197 ha | 80 ha | 277 ha |
| 2021 | 240 ha | 126 ha | 366 ha |
| 2022 | 203 ha | 82 ha | 285 ha |
| 2023 | 147 ha | 52 ha | 199 ha |
| 2024 | 169 ha | 99 ha | 268 ha |
| 2025 | 130 ha | 100 ha | 230 ha |
Forest loss is slowing down: about 270 hectares a year in 2021–2025, down from 394 hectares a year in 2016–2020. The worst year was 2010, when about 700 hectares of forest were lost.
What is causing deforestation in Jiangsu?
- Loggingcan grow back27% · 2,360 ha
- Farms, pasture and plantationscleared for good27% · 2,330 ha
- Towns and roadscleared for good23% · 2,010 ha
Also: mining and energy, storms, floods and other natural causes, wildfires, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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