City report · Guangdong, China
Sanshui Air quality today
Air quality in Sanshui currently reads AQI 94 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 94
Moderate
- PM2.5, fine particles (µg/m³)
- 32.1
- tree cover
- 29.8%
- trees in this area
- 81.1K
- more trees needed
- 544
Measured across a 2 km radius around Sanshui District, Foshan, Guangdong Province, China (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Sanshui · AQI 94 (Moderate)
Sanshui's tree count comes to 81,074 trees across 10.89 km² of land, 0 points below the 30% tree-cover level considered healthy for this area, so roughly 544 more trees would close the gap.
Air quality detail
Air quality in Sanshui today: AQI 94, 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 · Sanshui Monitoring Station, Foshan (佛山三水监测站), 700 m away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
32.1
PM10
52.9
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
- 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 Sanshui's daily AQI at 79 on average, from 47 on Nov 9 to an hourly peak of 154 on Nov 7.
Where Sanshui stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Sanshui: Below target
29.8% tree cover against a 30% healthy-neighborhood target, across 10.89 km² of land.
Trees in this area
81,074
Target trees
81,618
More trees needed
544
CO₂ if planted / yr
12.0 t
Deforestation · 2001–2025
How much forest has Sanshui lost?
Since 2001, the area within 10 km of Sanshui has lost about 396 hectares of forest (about 550 football pitches): 29% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from November 2017 of a 5 × 5 km area about 6 km southwest of the city center.
- Forest lost since 2001
- 396 haabout 550 football pitches
- Share of its forest
- 29%of what there was in 2000
- Cleared for good
- 321 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 66 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 | 1 ha | under 1 ha | 1 ha |
| 2002 | 2 ha | under 1 ha | 3 ha |
| 2003 | 3 ha | under 1 ha | 3 ha |
| 2004 | 40 ha | under 1 ha | 40 ha |
| 2005 | 21 ha | under 1 ha | 22 ha |
| 2006 | 22 ha | under 1 ha | 23 ha |
| 2007 | 40 ha | under 1 ha | 41 ha |
| 2008 | 14 ha | under 1 ha | 15 ha |
| 2009 | 18 ha | 4 ha | 22 ha |
| 2010 | 61 ha | 5 ha | 66 ha |
| 2011 | 11 ha | under 1 ha | 12 ha |
| 2012 | 16 ha | under 1 ha | 16 ha |
| 2013 | 1 ha | 1 ha | 3 ha |
| 2014 | 1 ha | 4 ha | 6 ha |
| 2015 | 2 ha | 3 ha | 5 ha |
| 2016 | 7 ha | 4 ha | 11 ha |
| 2017 | 15 ha | under 1 ha | 15 ha |
| 2018 | 10 ha | under 1 ha | 10 ha |
| 2019 | 5 ha | 15 ha | 20 ha |
| 2020 | 5 ha | 6 ha | 12 ha |
| 2021 | under 1 ha | 2 ha | 2 ha |
| 2022 | 5 ha | 7 ha | 12 ha |
| 2023 | 7 ha | 12 ha | 19 ha |
| 2024 | 6 ha | 3 ha | 8 ha |
| 2025 | 7 ha | 4 ha | 10 ha |
What is causing deforestation around Sanshui?
- Towns and roadscleared for good80% · 317 ha
- Loggingcan grow back17% · 69 ha
- Unknown causescause unknown1.3% · 5 ha
Also: farms, pasture and plantations.
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
- 3,600 ha
- Forest in 2020
- 3,320 ha
- Overall change
- −282 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Sanshui shrank from about 3,600 hectares to 3,320 hectares, a net loss of about 282 hectares (−7.8%). New forest grew on about 313 hectares, but 596 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 Sanshui
What is the air quality (AQI) in Sanshui right now?
The latest reading for Sanshui shows an AQI of 94 (Moderate), measured Nov 11, 22:00 local time by the Sanshui Monitoring Station, Foshan (佛山三水监测站) ground monitoring station, 700 m away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Sanshui today?
At AQI 94 (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 Sanshui been like this week?
Over the last 7 days, the CAMS air-quality model put Sanshui's daily AQI at 79 on average, from 47 on Nov 9 to an hourly peak of 154 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Sanshui lost since 2001?
Since 2001, the area within 10 km of Sanshui has lost about 396 hectares of forest (about 550 football pitches): 29% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Sanshui shrank from about 3,600 hectares to 3,320 hectares, a net loss of about 282 hectares (−7.8%). New forest grew on about 313 hectares, but 596 hectares were lost.
What is the tree count in Sanshui?
Sanshui has an estimated 81,074 trees across the 10.89 km² of land measured — 29.8% tree cover, 0 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Sanshui need?
Sanshui needs roughly 544 more trees to close a 0-point shortfall against its 30% tree-cover target — about 12.0 t of extra CO₂ absorbed per year once grown.
How are Sanshui's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Sanshui 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 Sanshui District; the tree count is an estimate derived from that cover.
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