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Airleaf

City report · Sarawak, Malaysia

Miri Air quality today

Air quality in Miri currently reads AQI 37 (Good): Air quality is satisfactory for everyone.

AQI 37

Air quality right now

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
6.7
tree cover
47.9%
trees in this area
116K
more trees needed
0

Measured across a 2 km radius around Miri, Sarawak, Malaysia (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 4, 2026

Miri's tree count comes to 115,721 trees across 9.67 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Miri today: AQI 37, Good

Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.

Ground station · Miri, Sarawak, Malaysia, 3.6 km away · median of 2 stations

Health signal

Air quality is satisfactory for everyone.

PM2.5

6.7

PM10

14.0

NO₂

—

O₃

—

SO₂

—

CO

—

Data: World Air Quality Index Project, Malaysia Department of Environment (DOE); Air Polluant Index Management System

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 Miri's daily AQI at 25 on average, from 13 on Nov 8 to an hourly peak of 52 on Nov 6.

Last 7 days · model estimateavg 25 · peak 52
Nov 5: AQI 32 (peak 42)Nov 6: AQI 36 (peak 52)Nov 7: AQI 27 (peak 52)Nov 8: AQI 13 (peak 33)Nov 9: AQI 24 (peak 38)Nov 10: AQI 24 (peak 37)Nov 11: AQI 16 (peak 16)
Nov 5Nov 11

This is the US EPA AQI. How it differs from Malaysia's API (IPU) · The full guide

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

Tree cover detail

Tree cover in Miri: Healthy tree cover

47.9% tree cover against a 30% healthy-neighborhood target, across 9.67 km² of land.

Target reached

Trees in this area

115,721

Target trees

115,721

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Miri lost?

Since 2001, the area within 10 km of Miri has lost about 6,290 hectares of forest (about 8,800 football pitches): 65% of the forest it had in 2000. Most of it (99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.

Satellite image of the area around Miri, April 2017

2017: satellite photo from April 2017 of a 5 × 5 km area about 4 km southeast of the city center.

Forest lost since 2001
6,290 haabout 8,800 football pitches
Share of its forest
65%of what there was in 2000
Cleared for good
6,220 hadeforestation: turned into farms, mines or towns

Forest loss is slowing down: about 65 hectares a year in 2021–2025, down from 138 hectares a year in 2016–2020. The worst year was 2007, when about 1,040 hectares of forest were lost.

Forest lost each year around Miri, 2001–2025

Hectares of forest lost each year

Forest lost each year around Miri, 2001–2025. Use the left and right arrow keys to read each year.1.04K

Show the figures as a table
Forest lost each year around Miri, 2001–2025
YearCleared for goodCan grow backTotal
2001168 haunder 1 ha168 ha
200251 haunder 1 ha51 ha
200353 haunder 1 ha53 ha
2004202 ha3 ha205 ha
2005404 ha9 ha413 ha
2006596 ha13 ha609 ha
20071,040 ha1 ha1,040 ha
2008570 ha1 ha571 ha
2009861 ha18 ha879 ha
2010146 ha1 ha147 ha
2011101 haunder 1 ha101 ha
2012441 ha1 ha442 ha
2013168 haunder 1 ha168 ha
2014273 haunder 1 ha273 ha
2015151 haunder 1 ha151 ha
2016318 ha2 ha320 ha
2017108 ha1 ha109 ha
201879 ha9 ha88 ha
201998 haunder 1 ha98 ha
202074 haunder 1 ha74 ha
202156 ha2 ha57 ha
202256 haunder 1 ha56 ha
202399 haunder 1 ha99 ha
202453 ha1 ha54 ha
202557 ha3 ha60 ha

What is causing deforestation around Miri?

  • Farms, pasture and plantationscleared for good83% · 5,230 ha
  • Towns and roadscleared for good16% · 993 ha
  • Loggingcan grow back1% · 64 ha

Also: 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
5,850 ha
Forest in 2020
7,170 ha
Overall change
+1,320 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Miri grew from about 5,850 hectares to 7,170 hectares, a net gain of about 1,320 hectares (+22%). New forest grew on about 2,840 hectares, while 1,530 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 Miri

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

  • 33.5 km
    Tree cover
    38%
    Air quality
    28
  • Tutong

    Brunei

    85.6 km
    Tree cover
    62%
    Air quality
    65
  • 118.5 km
    Tree cover
    56%
    Air quality
    27
  • Bintulu

    Malaysia

    173.5 km
    Tree cover
    44%
    Air quality
    40
  • 289.5 km
    Tree cover
    43%
    Air quality
    40
  • Sibu

    Malaysia

    335.8 km
    Tree cover
    49%
    Air quality
    36

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

Questions about Miri

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

The latest reading for Miri shows an AQI of 37 (Good), measured Nov 12, 00:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Miri, Sarawak, Malaysia, 3.6 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Miri today?

At AQI 37 (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 Miri been like this week?

Over the last 7 days, the CAMS air-quality model put Miri's daily AQI at 25 on average, from 13 on Nov 8 to an hourly peak of 52 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

Is Miri'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 Miri lost since 2001?

Since 2001, the area within 10 km of Miri has lost about 6,290 hectares of forest (about 8,800 football pitches): 65% of the forest it had in 2000. Most of it (99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 65 hectares a year in 2021–2025, down from 138 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Miri grew from about 5,850 hectares to 7,170 hectares, a net gain of about 1,320 hectares (+22%). New forest grew on about 2,840 hectares, while 1,530 hectares were lost.

What is the tree count in Miri?

Miri has an estimated 115,721 trees across the 9.67 km² of land measured — 47.9% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Miri need?

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

How are Miri's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Miri, 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 Miri; the tree count is an estimate derived from that cover.

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