City report · Guangdong, China
Nantou Air quality today
Air quality in Nantou currently reads AQI 104 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 104
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 36.7
- tree cover
- 11.1%
- trees in this area
- 34.2K
- more trees needed
- 73.7K
Measured across a 2 km radius around Zhongshan, Guangdong Province, China (12.57 km²), from a satellite image of Aug 11, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nantou · AQI 104 (Unhealthy for sensitive groups)
Nantou's tree count comes to 34,209 trees across 12.33 km² of land, 24 points below the 35% tree-cover level considered healthy for this area, so roughly 73,657 more trees would close the gap.
Air quality detail
Air quality in Nantou today: AQI 104, 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 · Ronggui street committee, Foshan (佛山容桂街道办), 5.9 km away · median of 3 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
36.7
PM10
89.3
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Guangdong Environmental Protection public network (广东环境保护公众网)
- 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 Nantou's daily AQI at 95 on average, from 61 on Nov 9 to an hourly peak of 181 on Nov 5.
Where Nantou stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nantou: Critically low
11.1% tree cover against a 35% healthy-neighborhood target, across 12.33 km² of land.
Trees in this area
34,209
Target trees
107,866
More trees needed
73,657
CO₂ if planted / yr
1,620 t
Deforestation · 2001–2025
How much forest has Nantou lost?
Since 2001, the area within 10 km of Nantou has lost about 13 hectares of forest (about 18 football pitches): 4.2% of the forest it had in 2000. Most of it (60%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 13 haabout 18 football pitches
- Share of its forest
- 4.2%of what there was in 2000
- Cleared for good
- 8 hadeforestation: turned into farms, mines or towns
The worst year was 2010, 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 | 1 ha |
| 2007 | 1 ha | under 1 ha | 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | 1 ha |
| 2010 | 1 ha | under 1 ha | 2 ha |
| 2011 | under 1 ha | under 1 ha | 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 | 1 ha | under 1 ha | 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 Nantou?
- Towns and roadscleared for good60% · 8 ha
- Unknown causescause unknown40% · 5 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
- 682 ha
- Forest in 2020
- 883 ha
- Overall change
- +201 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nantou grew from about 682 hectares to 883 hectares, a net gain of about 201 hectares (+29%). New forest grew on about 228 hectares, while 26 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 Nantou
What is the air quality (AQI) in Nantou right now?
The latest reading for Nantou shows an AQI of 104 (Unhealthy for sensitive groups), measured Nov 11, 22:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Ronggui street committee, Foshan (佛山容桂街道办), 5.9 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Nantou today?
At AQI 104 (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 Nantou been like this week?
Over the last 7 days, the CAMS air-quality model put Nantou's daily AQI at 95 on average, from 61 on Nov 9 to an hourly peak of 181 on Nov 5. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Nantou lost since 2001?
Since 2001, the area within 10 km of Nantou has lost about 13 hectares of forest (about 18 football pitches): 4.2% of the forest it had in 2000. Most of it (60%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Nantou grew from about 682 hectares to 883 hectares, a net gain of about 201 hectares (+29%). New forest grew on about 228 hectares, while 26 hectares were lost.
What is the tree count in Nantou?
Nantou has an estimated 34,209 trees across the 12.33 km² of land measured — 11.1% tree cover, 24 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Nantou need?
Nantou needs roughly 73,657 more trees to close a 24-point shortfall against its 35% tree-cover target — about 1,620 t of extra CO₂ absorbed per year once grown.
How are Nantou's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Zhongshan, 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 Zhongshan; the tree count is an estimate derived from that cover.
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