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Air quality now: AQI38Good, Nusantara

City report · East Kalimantan, Indonesia

Nusantara Air quality today

Air quality in Nusantara currently reads AQI 38 (Good): Air quality is satisfactory for everyone.

AQI 38

Air quality right now

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
6.6
tree cover
47.5%
trees in this area
149K
more trees needed
0

Measured across a 2 km radius around Sepaku, Kalimantan, Indonesia (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Nusantara · AQI 38 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 18, 2026

Nusantara's tree count comes to 148,927 trees across 12.54 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Nusantara today: AQI 38, Good

Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 2 station cities within 85 km, e.g. Samarinda and Samarinda

Health signal

Air quality is satisfactory for everyone.

PM2.5

6.6

PM10

5.6

NO₂

0.6

O₃

73.0

SO₂

1.2

CO

136.0

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 Nusantara's daily AQI at 46 on average, from 33 on Nov 10 to an hourly peak of 77 on Nov 5.

Last 7 daysavg 46 · peak 77
Nov 5: AQI 62 (peak 77)Nov 6: AQI 54 (peak 69)Nov 7: AQI 48 (peak 55)Nov 8: AQI 51 (peak 62)Nov 9: AQI 38 (peak 55)Nov 10: AQI 33 (peak 52)Nov 11: AQI 35 (peak 47)
Nov 5Nov 11

This is the US EPA AQI. How it differs from Indonesia's ISPU

Where Nusantara stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Nusantara: Healthy tree cover

47.5% tree cover against a 30% healthy-neighborhood target, across 12.54 km² of land.

Target reached

Trees in this area

148,927

Target trees

148,927

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Nusantara lost?

Since 2001, the area within 10 km of Nusantara has lost about 18,900 hectares of forest (about 26,000 football pitches): 68% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 7,440 hectares (39%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Nusantara, July 2017

2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km northwest of the city center.

Forest lost since 2001
18,900 haabout 26,000 football pitches
Share of its forest
68%of what there was in 2000
Cleared for good
7,440 hadeforestation: turned into farms, mines or towns

Forest loss is slowing down: about 159 hectares a year in 2021–2025, down from 396 hectares a year in 2016–2020. The worst year was 2009, when about 3,500 hectares of forest were lost.

Forest lost each year around Nusantara, 2001–2025

Hectares of forest lost each year

Forest lost each year around Nusantara, 2001–2025. Use the left and right arrow keys to read each year.3.5K

Show the figures as a table
Forest lost each year around Nusantara, 2001–2025
YearCleared for goodCan grow backTotal
200132 ha22 ha54 ha
2002108 ha24 ha132 ha
200329 ha14 ha43 ha
200467 ha18 ha85 ha
2005113 ha322 ha435 ha
2006172 ha86 ha258 ha
2007512 ha267 ha779 ha
2008947 ha860 ha1,810 ha
20091,580 ha1,920 ha3,500 ha
2010115 ha396 ha511 ha
2011627 ha1,330 ha1,950 ha
2012491 ha1,330 ha1,820 ha
2013169 ha659 ha828 ha
2014374 ha1,740 ha2,110 ha
2015664 ha1,110 ha1,780 ha
2016335 ha339 ha674 ha
2017201 ha471 ha672 ha
201880 ha156 ha236 ha
2019116 ha109 ha225 ha
2020136 ha38 ha174 ha
202174 ha50 ha124 ha
2022111 ha50 ha161 ha
2023192 ha74 ha266 ha
2024144 ha37 ha181 ha
202549 ha14 ha63 ha

What is causing deforestation around Nusantara?

  • Loggingcan grow back60% · 11,300 ha
  • Farms, pasture and plantationscleared for good36% · 6,820 ha
  • Mining and energycleared for good2.9% · 554 ha

Also: storms, floods and other natural causes, towns and roads, shifting farming, 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
25,400 ha
Forest in 2020
21,500 ha
Overall change
−3,850 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Nusantara shrank from about 25,400 hectares to 21,500 hectares, a net loss of about 3,850 hectares (−15%). New forest grew on about 1,070 hectares, but 4,910 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 Nusantara

Same 2 km radius, same index — so they compare directly.

  • Balikpapan

    Indonesia

    35.4 km
    Tree cover
    30%
    Air quality
    55
  • Loa Janan

    Indonesia

    61.1 km
    Tree cover
    39%
    Air quality
    67
  • Samarinda

    Indonesia

    72.3 km
    Tree cover
    13%
    Air quality
    67
  • Bontang

    Indonesia

    150.2 km
    Tree cover
    28%
    Air quality
    53
  • Palangkaraya

    Indonesia

    339.4 km
    Tree cover
    10%
    Air quality
    65
  • Banjarbaru

    Indonesia

    344.3 km
    Tree cover
    28%
    Air quality
    114

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Nusantara air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Nusantara

What is the air quality (AQI) in Nusantara right now?

The latest reading for Nusantara shows an AQI of 38 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Nusantara today?

At AQI 38 (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 Nusantara been like this week?

Over the last 7 days, the CAMS air-quality model put Nusantara's daily AQI at 46 on average, from 33 on Nov 10 to an hourly peak of 77 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

Is Nusantara's AQI 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.

How much forest has the area around Nusantara lost since 2001?

Since 2001, the area within 10 km of Nusantara has lost about 18,900 hectares of forest (about 26,000 football pitches): 68% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 7,440 hectares (39%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 159 hectares a year in 2021–2025, down from 396 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Nusantara shrank from about 25,400 hectares to 21,500 hectares, a net loss of about 3,850 hectares (−15%). New forest grew on about 1,070 hectares, but 4,910 hectares were lost.

What is the tree count in Nusantara?

Nusantara has an estimated 148,927 trees across the 12.54 km² of land measured — 47.5% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Nusantara need?

Nusantara has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Nusantara'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 Sepaku; the tree count is an estimate derived from that cover.

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