Indonesia · West Nusa Tenggara · 2 cities
Air quality in West Nusa Tenggara today The AQI right now, city by city
Right now, Bima has the cleanest air of the 2 cities we track in West Nusa Tenggara (AQI 58, Moderate), and Mataram the worst (AQI 69, Moderate). Mataram has the most tree cover, at 27.7% — #61 of 155 cities measured in Indonesia.
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
- 24.9%
- Indonesia: 28.0%
- worst air now: Mataram
- 69
- cleanest air now: Bima
- 58
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous, and it reads differently from Indonesia's ISPU. Measured by Airleaf, refreshed hourly.
West Nusa Tenggara
Air quality today across West Nusa Tenggara, city by city
| Mataram | 69Moderate | 27.7% | 7.2K | #61 of 155 |
|---|---|---|---|---|
| Bima | 58Moderate | 22.1% | 19.4K | #94 of 155 |
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 Indonesia.
Is this the same as Indonesia's ISPU?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. Indonesia's official index is the ISPU (Indeks Standar Pencemar Udara), published by the environment ministry from its own monitoring stations. Its bands are 0–50 Baik (good), 51–100 Sedang (moderate), 101–200 Tidak Sehat (unhealthy), 201–300 Sangat Tidak Sehat (very unhealthy) and over 300 Berbahaya (hazardous). The two indexes use different breakpoints and averaging times, so the same air can score differently on each.
Deforestation · 2001–2025
How much forest has West Nusa Tenggara lost?
Since 2001, West Nusa Tenggara has lost about 104,000 hectares of forest (about 150,000 football pitches): 9.4% of the forest it had in 2000. Most of it (90%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
- Forest lost since 2001
- 104,000 haabout 150,000 football pitches
- Share of its forest
- 9.4%of what there was in 2000
- Cleared for good
- 93,800 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 | 1,860 ha | 971 ha | 2,830 ha |
| 2002 | 2,030 ha | 587 ha | 2,620 ha |
| 2003 | 1,250 ha | 432 ha | 1,680 ha |
| 2004 | 3,920 ha | 513 ha | 4,440 ha |
| 2005 | 1,540 ha | 438 ha | 1,980 ha |
| 2006 | 1,990 ha | 425 ha | 2,410 ha |
| 2007 | 1,540 ha | 389 ha | 1,930 ha |
| 2008 | 2,370 ha | 213 ha | 2,580 ha |
| 2009 | 1,710 ha | 168 ha | 1,880 ha |
| 2010 | 834 ha | 256 ha | 1,090 ha |
| 2011 | 2,020 ha | 177 ha | 2,200 ha |
| 2012 | 2,460 ha | 494 ha | 2,950 ha |
| 2013 | 1,410 ha | 86 ha | 1,500 ha |
| 2014 | 6,540 ha | 380 ha | 6,920 ha |
| 2015 | 3,920 ha | 393 ha | 4,320 ha |
| 2016 | 3,560 ha | 387 ha | 3,950 ha |
| 2017 | 5,880 ha | 212 ha | 6,100 ha |
| 2018 | 7,890 ha | 210 ha | 8,100 ha |
| 2019 | 8,120 ha | 483 ha | 8,600 ha |
| 2020 | 5,440 ha | 1,090 ha | 6,530 ha |
| 2021 | 4,600 ha | 160 ha | 4,760 ha |
| 2022 | 5,310 ha | 221 ha | 5,530 ha |
| 2023 | 9,140 ha | 658 ha | 9,800 ha |
| 2024 | 5,440 ha | 599 ha | 6,040 ha |
| 2025 | 3,050 ha | 536 ha | 3,580 ha |
Forest loss has stayed about the same: about 5,940 hectares a year in 2021–2025, against 6,650 hectares a year in 2016–2020. The worst year was 2023, when about 9,800 hectares of forest were lost.
What is causing deforestation in West Nusa Tenggara?
- Farms, pasture and plantationscleared for good87% · 90,800 ha
- Shifting farmingcan grow back3.6% · 3,780 ha
- Mining and energycleared for good2.4% · 2,500 ha
Also: wildfires, logging, storms, floods and other natural causes, towns and roads, 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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