Indonesia · Riau · 3 cities
Air quality in Riau today The AQI right now, city by city
Right now, Dumai has the cleanest air of the 3 cities we track in Riau (AQI 28, Good), and Batam the worst (AQI 116, Unhealthy for sensitive groups). Dumai has the most tree cover, at 21.7% — #97 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.
Average right now
AQI 64
Moderate
- cities tracked
- 3
- average tree cover
- 16.2%
- Indonesia: 28.0%
- worst air now: Batam
- 116
- cleanest air now: Dumai
- 28
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.
Riau · average AQI 64
Air quality today across Riau, city by city
| Batam | 116Unhealthy for sensitive groups | 15.6% | 60.9K | #124 of 155 |
|---|---|---|---|---|
| Pekanbaru | 49Good | 11.3% | 58.7K | #143 of 155 |
| Dumai | 28Good | 21.7% | 26.1K | #97 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 Riau lost?
Since 2001, Riau has lost about 4.36 million hectares of forest (about 44,000 km²): 57% of the forest it had in 2000. Most of it (75%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
- Forest lost since 2001
- 4.36 million haabout 44,000 km²
- Share of its forest
- 57%of what there was in 2000
- Cleared for good
- 3.29 million 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 | 113,000 ha | 43,500 ha | 157,000 ha |
| 2002 | 108,000 ha | 45,200 ha | 153,000 ha |
| 2003 | 43,000 ha | 13,200 ha | 56,200 ha |
| 2004 | 177,000 ha | 90,300 ha | 267,000 ha |
| 2005 | 264,000 ha | 87,800 ha | 352,000 ha |
| 2006 | 163,000 ha | 36,400 ha | 199,000 ha |
| 2007 | 144,000 ha | 66,700 ha | 211,000 ha |
| 2008 | 151,000 ha | 47,800 ha | 199,000 ha |
| 2009 | 197,000 ha | 48,500 ha | 246,000 ha |
| 2010 | 229,000 ha | 110,000 ha | 339,000 ha |
| 2011 | 150,000 ha | 103,000 ha | 253,000 ha |
| 2012 | 261,000 ha | 82,700 ha | 344,000 ha |
| 2013 | 116,000 ha | 37,800 ha | 154,000 ha |
| 2014 | 182,000 ha | 94,800 ha | 277,000 ha |
| 2015 | 69,800 ha | 19,100 ha | 88,800 ha |
| 2016 | 119,000 ha | 25,800 ha | 144,000 ha |
| 2017 | 111,000 ha | 14,100 ha | 125,000 ha |
| 2018 | 90,600 ha | 10,100 ha | 101,000 ha |
| 2019 | 88,900 ha | 14,200 ha | 103,000 ha |
| 2020 | 81,200 ha | 13,200 ha | 94,400 ha |
| 2021 | 85,100 ha | 11,100 ha | 96,100 ha |
| 2022 | 76,600 ha | 10,100 ha | 86,700 ha |
| 2023 | 101,000 ha | 13,100 ha | 114,000 ha |
| 2024 | 85,700 ha | 13,900 ha | 99,600 ha |
| 2025 | 80,200 ha | 16,200 ha | 96,400 ha |
Forest loss has stayed about the same: about 98,500 hectares a year in 2021–2025, against 114,000 hectares a year in 2016–2020. The worst year was 2005, when about 352,000 hectares of forest were lost.
What is causing deforestation in Riau?
- Farms, pasture and plantationscleared for good75% · 3.27 million ha
- Loggingcan grow back20% · 874,000 ha
- Wildfirescan grow back3.9% · 171,000 ha
Also: shifting farming, towns and roads, mining and energy, 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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