City report · Jiangsu, China
Nantong Air quality today
Air quality in Nantong currently reads AQI 84 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 84
Moderate
- PM2.5, fine particles (µg/m³)
- 26.8
- tree cover
- 11.8%
- trees in this area
- 35.5K
- more trees needed
- 54.7K
Measured across a 2 km radius around Chongchuan District, Nantong, Jiangsu, China (12.57 km²), from a satellite image of Aug 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nantong · AQI 84 (Moderate)
Nantong's tree count comes to 35,477 trees across 12.03 km² of land, 18 points below the 30% tree-cover level considered healthy for this area, so roughly 54,718 more trees would close the gap.
Air quality detail
Air quality in Nantong today: AQI 84, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Nantong (南通), 5.9 km away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
26.8
PM10
44.8
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Jiangsu Environmental Protection public network (江苏省城市空气PM2.5等试运行监测数据平台), Jiangsu Province PM2.5 Air Monitoring Comission (江苏省城市空气PM2.5等试运行监测数据平台)
- 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 Nantong's daily AQI at 101 on average, from 52 on Nov 9 to an hourly peak of 194 on Nov 11.
Where Nantong stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nantong: Critically low
11.8% tree cover against a 30% healthy-neighborhood target, across 12.03 km² of land.
Trees in this area
35,477
Target trees
90,195
More trees needed
54,718
CO₂ if planted / yr
1,204 t
Deforestation · 2001–2025
How much forest has Nantong lost?
There was very little forest around Nantong in 2000, about 49 hectares, and about 2 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
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 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
Forest gained and lost, 2000–2020
- Forest in 2000
- 1,320 ha
- Forest in 2020
- 2,290 ha
- Overall change
- +969 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nantong grew from about 1,320 hectares to 2,290 hectares, a net gain of about 969 hectares (+73%). New forest grew on about 971 hectares, while 2 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 Nantong
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Nantong with anywhere
This place
Nantong
Use this data
Put Nantong's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Nantong
What is the air quality (AQI) in Nantong right now?
The latest reading for Nantong shows an AQI of 84 (Moderate), measured Nov 11, 22:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Nantong (南通), 5.9 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Nantong today?
At AQI 84 (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 Nantong been like this week?
Over the last 7 days, the CAMS air-quality model put Nantong's daily AQI at 101 on average, from 52 on Nov 9 to an hourly peak of 194 on Nov 11. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Nantong lost since 2001?
There was very little forest around Nantong in 2000, about 49 hectares, and about 2 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Nantong grew from about 1,320 hectares to 2,290 hectares, a net gain of about 969 hectares (+73%). New forest grew on about 971 hectares, while 2 hectares were lost.
What is the tree count in Nantong?
Nantong has an estimated 35,477 trees across the 12.03 km² of land measured — 11.8% tree cover, 18 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nantong need?
Nantong needs roughly 54,718 more trees to close a 18-point shortfall against its 30% tree-cover target — about 1,204 t of extra CO₂ absorbed per year once grown.
How are Nantong's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Chongchuan 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 Chongchuan 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