City report · North West, South Africa
Hammanskraal Air quality today
Air quality in Hammanskraal currently reads AQI 72 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 72
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 13.9
- tree cover
- 5.9%
- trees in this area
- 18.5K
- more trees needed
- 75.6K
Measured across a 2 km radius around Hammanskraal, 0407, South Africa (12.57 km²), from a satellite image of Sep 22, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hammanskraal · AQI 72 (Moderate)
Hammanskraal's tree count comes to 18,517 trees across 12.56 km² of land, 24 points below the 30% tree-cover level considered healthy for this area, so roughly 75,637 more trees would close the gap.
Air quality detail
Air quality in Hammanskraal today: AQI 72, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 08:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 45 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 45 km, e.g. Soshanguve and Pretoria
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
13.9
PM10
24.3
NO₂
6.7
O₃
122.0
SO₂
23.0
CO
169.0
- 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 Hammanskraal's daily AQI at 60 on average, from 32 on Nov 9 to an hourly peak of 142 on Nov 11.
Where Hammanskraal stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hammanskraal: Critically low
5.9% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
18,517
Target trees
94,154
More trees needed
75,637
CO₂ if planted / yr
1,664 t
Deforestation · 2001–2025
How much forest has Hammanskraal lost?
There was very little forest around Hammanskraal in 2000, about 69 hectares, and about 2 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.

2018: satellite photo from August 2018 of a 5 × 5 km area in the city center.
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 | under 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 | under 1 ha | under 1 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 | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 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 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 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 Hammanskraal?
- Farms, pasture and plantationscleared for good67% · 1 ha
- Towns and roadscleared for good6.7% · under 1 ha
- Unknown causescause unknown27% · under 1 ha
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
- 511 ha
- Forest in 2020
- 556 ha
- Overall change
- +45 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hammanskraal grew from about 511 hectares to 556 hectares, a net gain of about 45 hectares (+8.8%). New forest grew on about 58 hectares, while 14 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 Hammanskraal
Same 2 km radius, same index — so they compare directly.
- Soshanguve20.2 km
South Africa
- Tree cover
- 3%
- Air quality
- 205
- Pretoria38.7 km
South Africa
- Tree cover
- 15%
- Air quality
- 75
- Centurion51.1 km
South Africa
- Tree cover
- 21%
- Air quality
- 58
- Somaroboro55.4 km
South Africa
- Tree cover
- 4%
- Air quality
- 64
- Brits56.7 km
South Africa
- Tree cover
- 30%
- Air quality
- 44
- Thembisa65.6 km
South Africa
- Tree cover
- 2%
- Air quality
- 58
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Frequently asked
Questions about Hammanskraal
What is the air quality (AQI) in Hammanskraal right now?
The latest reading for Hammanskraal shows an AQI of 72 (Moderate), observed Nov 11, 08:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 45 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Hammanskraal today?
At AQI 72 (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 Hammanskraal been like this week?
Over the last 7 days, the CAMS air-quality model put Hammanskraal's daily AQI at 60 on average, from 32 on Nov 9 to an hourly peak of 142 on Nov 11. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Hammanskraal lost since 2001?
There was very little forest around Hammanskraal in 2000, about 69 hectares, and about 2 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 Hammanskraal grew from about 511 hectares to 556 hectares, a net gain of about 45 hectares (+8.8%). New forest grew on about 58 hectares, while 14 hectares were lost.
What is the tree count in Hammanskraal?
Hammanskraal has an estimated 18,517 trees across the 12.56 km² of land measured — 5.9% tree cover, 24 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hammanskraal need?
Hammanskraal needs roughly 75,637 more trees to close a 24-point shortfall against its 30% tree-cover target — about 1,664 t of extra CO₂ absorbed per year once grown.
How are Hammanskraal'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 Hammanskraal; the tree count is an estimate derived from that cover.
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