City report · Guangdong, China
Gaozhou Air quality today
Air quality in Gaozhou currently reads AQI 155 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 155
Unhealthy
- PM2.5, fine particles (µg/m³)
- 61.3
- tree cover
- 20.9%
- trees in this area
- 64.6K
- more trees needed
- 59.0K
Measured across a 2 km radius around Gaozhou, Maoming, Guangdong Province, China (12.57 km²), from a satellite image of Aug 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Gaozhou · AQI 155 (Unhealthy)
Gaozhou's tree count comes to 64,609 trees across 12.37 km² of land, 19 points below the 40% tree-cover level considered healthy for this area, so roughly 59,044 more trees would close the gap.
Air quality detail
Air quality in Gaozhou today: AQI 155, Unhealthy
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 · 高州教育, (茂名市高州教育), 700 m away · median of 2 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
61.3
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
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Gaozhou's daily AQI at 62 on average, from 44 on Nov 9 to an hourly peak of 92 on Nov 6.
Where Gaozhou stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Gaozhou: Critically low
20.9% tree cover against a 40% healthy-neighborhood target, across 12.37 km² of land.
Trees in this area
64,609
Target trees
123,653
More trees needed
59,044
CO₂ if planted / yr
1,299 t
Deforestation · 2001–2025
How much forest has Gaozhou lost?
Since 2001, the area within 10 km of Gaozhou has lost about 1,060 hectares of forest (about 1,500 football pitches): 23% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 483 hectares (46%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from January 2017 of a 5 × 5 km area about 6 km northwest of the city center.
- Forest lost since 2001
- 1,060 haabout 1,500 football pitches
- Share of its forest
- 23%of what there was in 2000
- Cleared for good
- 483 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 94 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 | 20 ha | 11 ha | 31 ha |
| 2002 | 6 ha | 15 ha | 21 ha |
| 2003 | 17 ha | 6 ha | 23 ha |
| 2004 | 23 ha | 28 ha | 52 ha |
| 2005 | 6 ha | 19 ha | 25 ha |
| 2006 | 24 ha | 12 ha | 35 ha |
| 2007 | 53 ha | 41 ha | 94 ha |
| 2008 | 13 ha | 9 ha | 22 ha |
| 2009 | 22 ha | 34 ha | 56 ha |
| 2010 | 11 ha | 13 ha | 24 ha |
| 2011 | 35 ha | 51 ha | 85 ha |
| 2012 | 19 ha | 16 ha | 35 ha |
| 2013 | 21 ha | 8 ha | 28 ha |
| 2014 | 17 ha | 11 ha | 28 ha |
| 2015 | 8 ha | 7 ha | 14 ha |
| 2016 | 14 ha | 32 ha | 46 ha |
| 2017 | 25 ha | 42 ha | 67 ha |
| 2018 | 19 ha | 34 ha | 53 ha |
| 2019 | 19 ha | 27 ha | 46 ha |
| 2020 | 16 ha | 18 ha | 34 ha |
| 2021 | 11 ha | 25 ha | 37 ha |
| 2022 | 13 ha | 20 ha | 33 ha |
| 2023 | 16 ha | 41 ha | 58 ha |
| 2024 | 20 ha | 38 ha | 58 ha |
| 2025 | 35 ha | 21 ha | 56 ha |
What is causing deforestation around Gaozhou?
- Loggingcan grow back54% · 573 ha
- Towns and roadscleared for good42% · 445 ha
- Farms, pasture and plantationscleared for good2.2% · 23 ha
Also: mining and energy, 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
- 13,400 ha
- Forest in 2020
- 13,700 ha
- Overall change
- +242 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Gaozhou stayed about the same size, at about 13,700 hectares: new forest grew on about 973 hectares, and about 731 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 Gaozhou
What is the air quality (AQI) in Gaozhou right now?
The latest reading for Gaozhou shows an AQI of 155 (Unhealthy), measured Nov 11, 22:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 高州教育, (茂名市高州教育), 700 m away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Gaozhou today?
At AQI 155 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Gaozhou been like this week?
Over the last 7 days, the CAMS air-quality model put Gaozhou's daily AQI at 62 on average, from 44 on Nov 9 to an hourly peak of 92 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Gaozhou lost since 2001?
Since 2001, the area within 10 km of Gaozhou has lost about 1,060 hectares of forest (about 1,500 football pitches): 23% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 483 hectares (46%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Gaozhou stayed about the same size, at about 13,700 hectares: new forest grew on about 973 hectares, and about 731 hectares were lost.
What is the tree count in Gaozhou?
Gaozhou has an estimated 64,609 trees across the 12.37 km² of land measured — 20.9% tree cover, 19 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Gaozhou need?
Gaozhou needs roughly 59,044 more trees to close a 19-point shortfall against its 40% tree-cover target — about 1,299 t of extra CO₂ absorbed per year once grown.
How are Gaozhou's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Gaozhou, 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 Gaozhou; the tree count is an estimate derived from that cover.
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