City report · Macao
Macau Air quality today
Air quality in Macau currently reads AQI 102 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 102
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 35.9
- tree cover
- 11.7%
- trees in this area
- 28.8K
- more trees needed
- 57.3K
Measured across a 2 km radius around St. Anthony's Parish, Macao (12.57 km²), from a satellite image of Aug 6, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Macau · AQI 102 (Unhealthy for sensitive groups)
Macau's tree count comes to 28,780 trees across 9.84 km² of land, 23 points below the 35% tree-cover level considered healthy for this area, so roughly 57,315 more trees would close the gap.
Air quality detail
Air quality in Macau today: AQI 102, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Calçada do Poço, Macau (水坑尾區 (水井斜巷)), 500 m away · median of 5 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
35.9
PM10
57.0
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Macao Environmental Protection Agency (澳門地球物理暨氣象局), 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 Macau's daily AQI at 73 on average, from 55 on Nov 9 to an hourly peak of 140 on Nov 8.
Where Macau stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Macau: Critically low
11.7% tree cover against a 35% healthy-neighborhood target, across 9.84 km² of land.
Trees in this area
28,780
Target trees
86,095
More trees needed
57,315
CO₂ if planted / yr
1,261 t
Deforestation · 2001–2025
How much forest has Macau lost?
Since 2001, the area within 10 km of Macau has lost about 290 hectares of forest (about 410 football pitches): 7.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 99 hectares (34%) was deforestation: forest cleared for good for farms, mines or towns.
2018: satellite photo from December 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 290 haabout 410 football pitches
- Share of its forest
- 7.5%of what there was in 2000
- Cleared for good
- 99 hadeforestation: turned into farms, mines or towns
The worst year was 2009, 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 | 2 ha | under 1 ha | 2 ha |
| 2002 | 2 ha | under 1 ha | 3 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 | 1 ha |
| 2006 | 8 ha | 1 ha | 9 ha |
| 2007 | 5 ha | 4 ha | 9 ha |
| 2008 | 4 ha | 2 ha | 6 ha |
| 2009 | 5 ha | 89 ha | 94 ha |
| 2010 | 2 ha | 4 ha | 6 ha |
| 2011 | 7 ha | 4 ha | 10 ha |
| 2012 | 3 ha | 7 ha | 9 ha |
| 2013 | under 1 ha | under 1 ha | 1 ha |
| 2014 | 2 ha | 1 ha | 4 ha |
| 2015 | 2 ha | 2 ha | 4 ha |
| 2016 | under 1 ha | 5 ha | 6 ha |
| 2017 | 21 ha | 14 ha | 35 ha |
| 2018 | 3 ha | 2 ha | 5 ha |
| 2019 | 7 ha | 46 ha | 53 ha |
| 2020 | 3 ha | 2 ha | 5 ha |
| 2021 | 6 ha | under 1 ha | 7 ha |
| 2022 | 2 ha | under 1 ha | 3 ha |
| 2023 | 12 ha | 5 ha | 17 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 Macau?
- Loggingcan grow back63% · 183 ha
- Towns and roadscleared for good34% · 99 ha
- Unknown causescause unknown2.2% · 6 ha
Also: storms, floods and other natural 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
- 4,520 ha
- Forest in 2020
- 4,620 ha
- Overall change
- +104 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Macau grew from about 4,520 hectares to 4,620 hectares, a net gain of about 104 hectares (+2.3%). New forest grew on about 268 hectares, while 163 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
In the same region
Measured cities near Macau
Same 2 km radius, same index — so they compare directly.
- Jing’an26.2 km
China
- Tree cover
- 27%
- Air quality
- 97
- Zhongshan39.8 km
China
- Tree cover
- 27%
- Air quality
- 97
- San Tung Chung Hang41.8 km
Hong Kong
- Tree cover
- 83%
- Air quality
- 62
- Bao'an52.2 km
China
- Tree cover
- 31%
- Air quality
- 110
- Tin Shui Wai54.9 km
Hong Kong
- Tree cover
- 37%
- Air quality
- 75
- Tsing Yi Town59.4 km
Hong Kong
- Tree cover
- 55%
- Air quality
- 62
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Frequently asked
Questions about Macau
What is the air quality (AQI) in Macau right now?
The latest reading for Macau shows an AQI of 102 (Unhealthy for sensitive groups), measured Nov 11, 23:00 local time by 5 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Calçada do Poço, Macau (水坑尾區 (水井斜巷)), 500 m away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Macau today?
At AQI 102 (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 Macau been like this week?
Over the last 7 days, the CAMS air-quality model put Macau's daily AQI at 73 on average, from 55 on Nov 9 to an hourly peak of 140 on Nov 8. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Macau lost since 2001?
Since 2001, the area within 10 km of Macau has lost about 290 hectares of forest (about 410 football pitches): 7.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 99 hectares (34%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Macau grew from about 4,520 hectares to 4,620 hectares, a net gain of about 104 hectares (+2.3%). New forest grew on about 268 hectares, while 163 hectares were lost.
What is the tree count in Macau?
Macau has an estimated 28,780 trees across the 9.84 km² of land measured — 11.7% tree cover, 23 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Macau need?
Macau needs roughly 57,315 more trees to close a 23-point shortfall against its 35% tree-cover target — about 1,261 t of extra CO₂ absorbed per year once grown.
How are Macau's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near St. Anthony's Parish, 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 St. Anthony's Parish; the tree count is an estimate derived from that cover.
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