City report · Johor, Malaysia
Iskandar Puteri Air quality today
Air quality in Iskandar Puteri currently reads AQI 82 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 82
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 25.9
- tree cover
- 53.2%
- trees in this area
- 165K
- more trees needed
- 0
Measured across a 2 km radius around Medini Iskandar Malaysia, Iskandar Puteri, Johor, Malaysia (12.57 km²), from a satellite image of Aug 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Iskandar Puteri · AQI 82 (Moderate)
Iskandar Puteri's tree count comes to 164,793 trees across 12.39 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Iskandar Puteri today: AQI 82, Moderate
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 · West, Singapore, 8.3 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
25.9
PM10
38.9
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, NEA - Singapore National Environment Agency
- 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 Iskandar Puteri's daily AQI at 67 on average, from 61 on Nov 10 to an hourly peak of 88 on Nov 4.
This is the US EPA AQI. How it differs from Malaysia's API (IPU) · The full guide
Where Iskandar Puteri stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Iskandar Puteri: Healthy tree cover
53.2% tree cover against a 30% healthy-neighborhood target, across 12.39 km² of land.
Trees in this area
164,793
Target trees
164,793
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Iskandar Puteri lost?
Since 2001, the area within 10 km of Iskandar Puteri has lost about 6,710 hectares of forest (about 9,400 football pitches): 41% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from May 2017 of a 5 × 5 km area about 6 km west of the city center.
- Forest lost since 2001
- 6,710 haabout 9,400 football pitches
- Share of its forest
- 41%of what there was in 2000
- Cleared for good
- 6,680 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 284 hectares a year in 2021–2025, against 340 hectares a year in 2016–2020. The worst year was 2025, when about 470 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 | 96 ha | under 1 ha | 96 ha |
| 2002 | 74 ha | under 1 ha | 75 ha |
| 2003 | 36 ha | under 1 ha | 36 ha |
| 2004 | 165 ha | under 1 ha | 165 ha |
| 2005 | 352 ha | under 1 ha | 352 ha |
| 2006 | 450 ha | 1 ha | 451 ha |
| 2007 | 291 ha | under 1 ha | 291 ha |
| 2008 | 137 ha | under 1 ha | 137 ha |
| 2009 | 401 ha | under 1 ha | 401 ha |
| 2010 | 421 ha | under 1 ha | 421 ha |
| 2011 | 234 ha | 1 ha | 235 ha |
| 2012 | 223 ha | 1 ha | 224 ha |
| 2013 | 51 ha | under 1 ha | 51 ha |
| 2014 | 342 ha | under 1 ha | 342 ha |
| 2015 | 314 ha | under 1 ha | 314 ha |
| 2016 | 293 ha | under 1 ha | 293 ha |
| 2017 | 437 ha | 4 ha | 441 ha |
| 2018 | 453 ha | 1 ha | 454 ha |
| 2019 | 220 ha | 8 ha | 228 ha |
| 2020 | 278 ha | 4 ha | 282 ha |
| 2021 | 286 ha | 1 ha | 287 ha |
| 2022 | 152 ha | under 1 ha | 152 ha |
| 2023 | 262 ha | under 1 ha | 262 ha |
| 2024 | 251 ha | under 1 ha | 251 ha |
| 2025 | 465 ha | 5 ha | 470 ha |
What is causing deforestation around Iskandar Puteri?
- Towns and roadscleared for good59% · 3,980 ha
- Farms, pasture and plantationscleared for good21% · 1,430 ha
- Mining and energycleared for good19% · 1,270 ha
Also: storms, floods and other natural causes, wildfires, 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
- 15,700 ha
- Forest in 2020
- 11,200 ha
- Overall change
- −4,530 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Iskandar Puteri shrank from about 15,700 hectares to 11,200 hectares, a net loss of about 4,530 hectares (−29%). New forest grew on about 802 hectares, but 5,330 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 Iskandar Puteri
Same 2 km radius, same index — so they compare directly.
- Jurong Town12.9 km
Singapore
- Tree cover
- 21%
- Air quality
- 73
- Mukim Pulai16.3 km
Malaysia
- Tree cover
- 40%
- Air quality
- 77
- Johor Bahru17.0 km
Malaysia
- Tree cover
- 22%
- Air quality
- 76
- Woodlands19.1 km
Singapore
- Tree cover
- 28%
- Air quality
- 75
- Ang Mo Kio New Town24.1 km
Singapore
- Tree cover
- 35%
- Air quality
- 64
- Pelentong26.7 km
Malaysia
- Tree cover
- 45%
- Air quality
- 81
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Frequently asked
Questions about Iskandar Puteri
What is the air quality (AQI) in Iskandar Puteri right now?
The latest reading for Iskandar Puteri shows an AQI of 82 (Moderate), measured Nov 11, 23:00 local time by the West, Singapore ground monitoring station, 8.3 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Iskandar Puteri today?
At AQI 82 (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 Iskandar Puteri been like this week?
Over the last 7 days, the CAMS air-quality model put Iskandar Puteri's daily AQI at 67 on average, from 61 on Nov 10 to an hourly peak of 88 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
Is Iskandar Puteri's AQI the same as Malaysia's API (IPU)?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. Malaysia's Department of Environment (Jabatan Alam Sekitar) publishes its own Air Pollutant Index, the API or Indeks Pencemar Udara (IPU), every hour for each of its monitoring stations on APIMS (apims.doe.gov.my). Both scales call 0–50 good and 51–100 moderate; above that the IPU runs 101–200 unhealthy, 201–300 very unhealthy and over 300 hazardous. The two use different breakpoints and averaging times, so the numbers for the same hour often differ. For the official IPU reading, check the nearest station on APIMS.
How much forest has the area around Iskandar Puteri lost since 2001?
Since 2001, the area within 10 km of Iskandar Puteri has lost about 6,710 hectares of forest (about 9,400 football pitches): 41% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss has stayed about the same: about 284 hectares a year in 2021–2025, against 340 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Iskandar Puteri shrank from about 15,700 hectares to 11,200 hectares, a net loss of about 4,530 hectares (−29%). New forest grew on about 802 hectares, but 5,330 hectares were lost.
What is the tree count in Iskandar Puteri?
Iskandar Puteri has an estimated 164,793 trees across the 12.39 km² of land measured — 53.2% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Iskandar Puteri need?
Iskandar Puteri has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Iskandar Puteri's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Medini Iskandar Malaysia, 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 Medini Iskandar Malaysia; the tree count is an estimate derived from that cover.
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