Malaysia · Negeri Sembilan · 2 cities
Air quality in Negeri Sembilan today The AQI right now, city by city
Right now, Seremban has the cleanest air of the 2 cities we track in Negeri Sembilan (AQI 58, Moderate), and Port Dickson the worst (AQI 65, Moderate). Seremban has the most tree cover, at 39.1% — #26 of 56 cities measured in Malaysia.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
- cities tracked
- 2
- average tree cover
- 35.8%
- Malaysia: 38.7%
- worst air now: Port Dickson
- 65
- cleanest air now: Seremban
- 58
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous, and it reads differently from Malaysia's API (IPU). Measured by Airleaf, refreshed hourly.
Negeri Sembilan
Air quality today across Negeri Sembilan, city by city
| Seremban | 58Moderate | 39.1% | — | #26 of 56 |
|---|---|---|---|---|
| Port Dickson | 65Moderate | 32.5% | — | #30 of 56 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Malaysia.
Is this 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.
Malaysia's API (IPU) and the AQI, explainedDeforestation · 2001–2025
How much forest has Negeri Sembilan lost?
Since 2001, Negeri Sembilan has lost about 293,000 hectares of forest (about 2,900 km²): 52% of the forest it had in 2000. Most of it (97%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
- Forest lost since 2001
- 293,000 haabout 2,900 km²
- Share of its forest
- 52%of what there was in 2000
- Cleared for good
- 286,000 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 22,300 ha | 186 ha | 22,400 ha |
| 2002 | 24,700 ha | 267 ha | 25,000 ha |
| 2003 | 7,270 ha | 85 ha | 7,350 ha |
| 2004 | 8,780 ha | 180 ha | 8,960 ha |
| 2005 | 12,900 ha | 206 ha | 13,100 ha |
| 2006 | 7,550 ha | 98 ha | 7,650 ha |
| 2007 | 9,580 ha | 527 ha | 10,100 ha |
| 2008 | 7,860 ha | 541 ha | 8,400 ha |
| 2009 | 17,300 ha | 204 ha | 17,500 ha |
| 2010 | 5,370 ha | 132 ha | 5,500 ha |
| 2011 | 15,800 ha | 210 ha | 16,000 ha |
| 2012 | 24,400 ha | 460 ha | 24,800 ha |
| 2013 | 10,800 ha | 236 ha | 11,000 ha |
| 2014 | 17,800 ha | 463 ha | 18,300 ha |
| 2015 | 10,500 ha | 381 ha | 10,900 ha |
| 2016 | 16,400 ha | 536 ha | 17,000 ha |
| 2017 | 13,200 ha | 652 ha | 13,800 ha |
| 2018 | 10,300 ha | 561 ha | 10,900 ha |
| 2019 | 9,420 ha | 344 ha | 9,770 ha |
| 2020 | 6,370 ha | 189 ha | 6,560 ha |
| 2021 | 6,020 ha | 120 ha | 6,140 ha |
| 2022 | 4,660 ha | 386 ha | 5,050 ha |
| 2023 | 5,730 ha | 142 ha | 5,870 ha |
| 2024 | 5,690 ha | 241 ha | 5,930 ha |
| 2025 | 5,380 ha | 153 ha | 5,530 ha |
Forest loss is slowing down: about 5,710 hectares a year in 2021–2025, down from 11,600 hectares a year in 2016–2020. The worst year was 2002, when about 25,000 hectares of forest were lost.
What is causing deforestation in Negeri Sembilan?
- Farms, pasture and plantationscleared for good93% · 272,000 ha
- Towns and roadscleared for good3.7% · 10,800 ha
- Loggingcan grow back2% · 5,990 ha
Also: mining and energy, shifting farming, storms, floods and other natural causes, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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