City report · Gauteng, South Africa
Carletonville Air quality today
Air quality in Carletonville currently reads AQI 31 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 31
Good
- PM2.5, fine particles (µg/m³)
- 3.5
- tree cover
- 22.8%
- trees in this area
- 71.6K
- more trees needed
- 22.6K
Measured across a 2 km radius around Carletonville, 2499, South Africa (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Carletonville · AQI 31 (Good)
Carletonville's tree count comes to 71,628 trees across 12.57 km², 7 points below the 30% tree-cover level considered healthy for this area, so roughly 22,619 more trees would close the gap.
Air quality detail
Air quality in Carletonville today: AQI 31, Good
Main pollutant: PM2.5 · Observed Nov 11, 10:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 65 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 7 station cities within 65 km, e.g. Soweto and Krugersdorp
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.5
PM10
7.0
NO₂
1.2
O₃
113.0
SO₂
8.2
CO
228.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Carletonville's daily AQI at 58 on average, from 41 on Nov 9 to an hourly peak of 104 on Nov 5.
Where Carletonville stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Carletonville: Below target
22.8% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
71,628
Target trees
94,247
More trees needed
22,619
CO₂ if planted / yr
497.6 t
Deforestation · 2001–2025
How much forest has Carletonville lost?
There was very little forest around Carletonville in 2000, about 85 hectares, and about 16 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
The worst year was 2019, when about 4 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 | 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 | under 1 ha |
| 2007 | under 1 ha | 2 ha | 2 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | 1 ha |
| 2013 | 1 ha | under 1 ha | 2 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | 3 ha | under 1 ha | 3 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | 4 ha | 4 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 Carletonville?
- Loggingcan grow back61% · 10 ha
- Farms, pasture and plantationscleared for good25% · 4 ha
- Mining and energycleared for good7.5% · 1 ha
Also: 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
- 267 ha
- Forest in 2020
- 250 ha
- Overall change
- −17 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Carletonville shrank from about 267 hectares to 250 hectares, a net loss of about 17 hectares (−6.4%). New forest grew on about 13 hectares, but 31 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 Carletonville
Same 2 km radius, same index — so they compare directly.
- Westonaria25.4 km
South Africa
- Tree cover
- 9%
- Air quality
- 38
- Randfontein36.1 km
South Africa
- Tree cover
- 14%
- Air quality
- 47
- Soweto47.1 km
South Africa
- Tree cover
- 6%
- Air quality
- 37
- Krugersdorp48.5 km
South Africa
- Tree cover
- 26%
- Air quality
- 37
- Evaton48.9 km
South Africa
- Tree cover
- 3%
- Air quality
- 133
- Potchefstroom49.4 km
South Africa
- Tree cover
- 31%
- Air quality
- 36
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Frequently asked
Questions about Carletonville
What is the air quality (AQI) in Carletonville right now?
The latest reading for Carletonville shows an AQI of 31 (Good), observed Nov 11, 10:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 65 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Carletonville today?
At AQI 31 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Carletonville been like this week?
Over the last 7 days, the CAMS air-quality model put Carletonville's daily AQI at 58 on average, from 41 on Nov 9 to an hourly peak of 104 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 Carletonville lost since 2001?
There was very little forest around Carletonville in 2000, about 85 hectares, and about 16 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Carletonville shrank from about 267 hectares to 250 hectares, a net loss of about 17 hectares (−6.4%). New forest grew on about 13 hectares, but 31 hectares were lost.
What is the tree count in Carletonville?
Carletonville has an estimated 71,628 trees across the 12.57 km² measured — 22.8% tree cover, 7 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Carletonville need?
Carletonville needs roughly 22,619 more trees to close a 7-point shortfall against its 30% tree-cover target — about 497.6 t of extra CO₂ absorbed per year once grown.
How are Carletonville's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Carletonville; the tree count is an estimate derived from that cover.
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