City report · Jiangsu, China
Suicheng Air quality today
Air quality in Suicheng currently reads AQI 111 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 111
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 45.0
- tree cover
- 16.9%
- trees in this area
- 53.1K
- more trees needed
- 56.9K
Measured across a 2 km radius around Suining, Xuzhou, Jiangsu, China (12.57 km²), from a satellite image of Sep 7, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Suicheng · AQI 111 (Unhealthy for sensitive groups)
Suicheng's tree count comes to 53,093 trees across 12.57 km², 18 points below the 35% tree-cover level considered healthy for this area, so roughly 56,863 more trees would close the gap.
Air quality detail
Air quality in Suicheng today: AQI 111, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 125 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 125 km, e.g. Huaibei and Zaozhuang
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
45.0
PM10
57.9
NO₂
42.4
O₃
17.0
SO₂
6.2
CO
771.0
- 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 Suicheng's daily AQI at 100 on average, from 56 on Nov 8 to an hourly peak of 164 on Nov 6.
Where Suicheng stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Suicheng: Critically low
16.9% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
53,093
Target trees
109,956
More trees needed
56,863
CO₂ if planted / yr
1,251 t
Deforestation · 2001–2025
How much forest has Suicheng lost?
Since 2001, the area within 10 km of Suicheng has lost about 7 hectares of forest (about 10 football pitches): 4.3% of the forest it had in 2000. Most of it (69%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2018: satellite photo from September 2018 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 7 haabout 10 football pitches
- Share of its forest
- 4.3%of what there was in 2000
- Cleared for good
- 5 hadeforestation: turned into farms, mines or towns
The worst year was 2020, when about 2 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 | 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 | 1 ha | under 1 ha | 2 ha |
| 2021 | 1 ha | under 1 ha | 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 |
What is causing deforestation around Suicheng?
- Farms, pasture and plantationscleared for good44% · 3 ha
- Towns and roadscleared for good24% · 2 ha
- Loggingcan grow back4.3% · under 1 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
- 863 ha
- Forest in 2020
- 1,140 ha
- Overall change
- +272 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Suicheng grew from about 863 hectares to 1,140 hectares, a net gain of about 272 hectares (+32%). New forest grew on about 324 hectares, while 52 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 Suicheng
What is the air quality (AQI) in Suicheng right now?
The latest reading for Suicheng shows an AQI of 111 (Unhealthy for sensitive groups), observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 125 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 Suicheng today?
At AQI 111 (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 Suicheng been like this week?
Over the last 7 days, the CAMS air-quality model put Suicheng's daily AQI at 100 on average, from 56 on Nov 8 to an hourly peak of 164 on Nov 6. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Suicheng lost since 2001?
Since 2001, the area within 10 km of Suicheng has lost about 7 hectares of forest (about 10 football pitches): 4.3% of the forest it had in 2000. Most of it (69%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Suicheng grew from about 863 hectares to 1,140 hectares, a net gain of about 272 hectares (+32%). New forest grew on about 324 hectares, while 52 hectares were lost.
What is the tree count in Suicheng?
Suicheng has an estimated 53,093 trees across the 12.57 km² measured — 16.9% tree cover, 18 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Suicheng need?
Suicheng needs roughly 56,863 more trees to close a 18-point shortfall against its 35% tree-cover target — about 1,251 t of extra CO₂ absorbed per year once grown.
How are Suicheng'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 Suining; the tree count is an estimate derived from that cover.
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