City report · Jiangsu, China
Suqian Air quality today
Air quality in Suqian currently reads AQI 142 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 142
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 52.2
- tree cover
- 18.6%
- trees in this area
- 54.4K
- more trees needed
- 48.0K
Measured across a 2 km radius around Sucheng District, Suqian, Jiangsu, China (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Suqian · AQI 142 (Unhealthy for sensitive groups)
Suqian's tree count comes to 54,402 trees across 11.7 km² of land, 16 points below the 35% tree-cover level considered healthy for this area, so roughly 47,967 more trees would close the gap.
Air quality detail
Air quality in Suqian today: AQI 142, Unhealthy for sensitive groups
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 · Suqian College , Suqian (宿迁宿迁学院), 1.8 km away · median of 2 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
52.2
PM10
76.2
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)
- 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 Suqian's daily AQI at 93 on average, from 53 on Nov 8 to an hourly peak of 159 on Nov 5.
Where Suqian stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Suqian: Critically low
18.6% tree cover against a 35% healthy-neighborhood target, across 11.7 km² of land.
Trees in this area
54,402
Target trees
102,369
More trees needed
47,967
CO₂ if planted / yr
1,055 t
Deforestation · 2001–2025
How much forest has Suqian lost?
There was very little forest around Suqian in 2000, about 33 hectares, and about 4 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.
2018: satellite photo from September 2018 of a 5 × 5 km area in the city center.
The worst year was 2001, when about 1 hectare 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 | 1 ha | 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 |
What is causing deforestation around Suqian?
- Towns and roadscleared for good8.1% · under 1 ha
- Loggingcan grow back5.4% · under 1 ha
- Unknown causescause unknown86% · 3 ha
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
- 1,010 ha
- Forest in 2020
- 1,900 ha
- Overall change
- +882 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Suqian grew from about 1,010 hectares to 1,900 hectares, a net gain of about 882 hectares (+87%). New forest grew on about 883 hectares, while 1 hectare 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 Suqian
What is the air quality (AQI) in Suqian right now?
The latest reading for Suqian shows an AQI of 142 (Unhealthy for sensitive groups), measured Nov 11, 22:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Suqian College , Suqian (宿迁宿迁学院), 1.8 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Suqian today?
At AQI 142 (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 Suqian been like this week?
Over the last 7 days, the CAMS air-quality model put Suqian's daily AQI at 93 on average, from 53 on Nov 8 to an hourly peak of 159 on Nov 5. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Suqian lost since 2001?
There was very little forest around Suqian in 2000, about 33 hectares, and about 4 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 Suqian grew from about 1,010 hectares to 1,900 hectares, a net gain of about 882 hectares (+87%). New forest grew on about 883 hectares, while 1 hectare were lost.
What is the tree count in Suqian?
Suqian has an estimated 54,402 trees across the 11.7 km² of land measured — 18.6% tree cover, 16 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Suqian need?
Suqian needs roughly 47,967 more trees to close a 16-point shortfall against its 35% tree-cover target — about 1,055 t of extra CO₂ absorbed per year once grown.
How are Suqian's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Sucheng 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 Sucheng District; the tree count is an estimate derived from that cover.
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