City report · Guangdong, China
Shanwei Air quality today
Air quality in Shanwei currently reads AQI 70 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 70
Moderate
- PM2.5, fine particles (µg/m³)
- 19.5
- tree cover
- 21.1%
- trees in this area
- 43.4K
- more trees needed
- 18.3K
Measured across a 2 km radius around Shanwei, Guangdong Province, China (12.57 km²), from a satellite image of Sep 12, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Shanwei · AQI 70 (Moderate)
Shanwei's tree count comes to 43,352 trees across 8.22 km² of land, 9 points below the 30% tree-cover level considered healthy for this area, so roughly 18,286 more trees would close the gap.
Air quality detail
Air quality in Shanwei today: AQI 70, 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 · City EPA, Shanwei (汕尾市环保局), 2 km away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
19.5
PM10
31.9
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 Shanwei's daily AQI at 56 on average, from 30 on Nov 10 to an hourly peak of 88 on Nov 5.
Where Shanwei stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Shanwei: Below target
21.1% tree cover against a 30% healthy-neighborhood target, across 8.22 km² of land.
Trees in this area
43,352
Target trees
61,638
More trees needed
18,286
CO₂ if planted / yr
402.3 t
Deforestation · 2001–2025
How much forest has Shanwei lost?
Since 2001, the area within 10 km of Shanwei has lost about 188 hectares of forest (about 260 football pitches): 19% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 56 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns.
2018: satellite photo from January 2018 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 188 haabout 260 football pitches
- Share of its forest
- 19%of what there was in 2000
- Cleared for good
- 56 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 27 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 | 8 ha | 10 ha |
| 2002 | under 1 ha | 4 ha | 4 ha |
| 2003 | under 1 ha | 1 ha | 2 ha |
| 2004 | 7 ha | 5 ha | 11 ha |
| 2005 | 2 ha | 4 ha | 6 ha |
| 2006 | under 1 ha | 6 ha | 7 ha |
| 2007 | 4 ha | 10 ha | 14 ha |
| 2008 | 10 ha | 18 ha | 27 ha |
| 2009 | 6 ha | 16 ha | 21 ha |
| 2010 | 3 ha | 2 ha | 6 ha |
| 2011 | 7 ha | 14 ha | 21 ha |
| 2012 | 1 ha | 3 ha | 4 ha |
| 2013 | 1 ha | 11 ha | 12 ha |
| 2014 | under 1 ha | 7 ha | 7 ha |
| 2015 | under 1 ha | 4 ha | 4 ha |
| 2016 | 2 ha | under 1 ha | 3 ha |
| 2017 | 2 ha | 3 ha | 5 ha |
| 2018 | 3 ha | 2 ha | 5 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | 2 ha | 6 ha | 8 ha |
| 2022 | 1 ha | 1 ha | 3 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 | 6 ha | 6 ha |
What is causing deforestation around Shanwei?
- Loggingcan grow back59% · 111 ha
- Towns and roadscleared for good29% · 55 ha
- Wildfirescan grow back8.6% · 16 ha
Also: mining and energy, farms, pasture and plantations, storms, floods and other natural causes, 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
- 3,620 ha
- Forest in 2020
- 3,830 ha
- Overall change
- +208 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Shanwei grew from about 3,620 hectares to 3,830 hectares, a net gain of about 208 hectares (+5.7%). New forest grew on about 342 hectares, while 133 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 Shanwei
What is the air quality (AQI) in Shanwei right now?
The latest reading for Shanwei shows an AQI of 70 (Moderate), measured Nov 11, 22:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is City EPA, Shanwei (汕尾市环保局), 2 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Shanwei today?
At AQI 70 (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 Shanwei been like this week?
Over the last 7 days, the CAMS air-quality model put Shanwei's daily AQI at 56 on average, from 30 on Nov 10 to an hourly peak of 88 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Shanwei lost since 2001?
Since 2001, the area within 10 km of Shanwei has lost about 188 hectares of forest (about 260 football pitches): 19% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 56 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Shanwei grew from about 3,620 hectares to 3,830 hectares, a net gain of about 208 hectares (+5.7%). New forest grew on about 342 hectares, while 133 hectares were lost.
What is the tree count in Shanwei?
Shanwei has an estimated 43,352 trees across the 8.22 km² of land measured — 21.1% tree cover, 9 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Shanwei need?
Shanwei needs roughly 18,286 more trees to close a 9-point shortfall against its 30% tree-cover target — about 402.3 t of extra CO₂ absorbed per year once grown.
How are Shanwei's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Shanwei, 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 Shanwei; the tree count is an estimate derived from that cover.
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