City report · Indonesia
Timika Air quality today
Air quality in Timika currently reads AQI 76 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 76
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 22.9
- tree cover
- 20.7%
- trees in this area
- 64.4K
- more trees needed
- 28.9K
Measured across a 2 km radius around Timika, Mimika Baru, Mimika Regency, Central Papua, Indonesia (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Timika · AQI 76 (Moderate)
Timika's tree count comes to 64,381 trees across 12.44 km² of land, 9 points below the 30% tree-cover level considered healthy for this area, so roughly 28,925 more trees would close the gap.
Air quality detail
Air quality in Timika today: AQI 76, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
22.9
PM10
24.2
NO₂
1.2
O₃
55.0
SO₂
3.3
CO
715.0
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Timika's daily AQI at 91 on average, from 65 on Nov 6 to an hourly peak of 154 on Nov 10.
This is the US EPA AQI. How it differs from Indonesia's ISPU
Where Timika stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Timika: Below target
20.7% tree cover against a 30% healthy-neighborhood target, across 12.44 km² of land.
Trees in this area
64,381
Target trees
93,306
More trees needed
28,925
CO₂ if planted / yr
636.4 t
Deforestation · 2001–2025
How much forest has Timika lost?
Since 2001, the area within 10 km of Timika has lost about 7,670 hectares of forest (about 11,000 football pitches): 32% of the forest it had in 2000. Most of it (86%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from January 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 7,670 haabout 11,000 football pitches
- Share of its forest
- 32%of what there was in 2000
- Cleared for good
- 6,610 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 257 hectares a year in 2021–2025, down from 429 hectares a year in 2016–2020. The worst year was 2020, when about 637 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 125 ha | 10 ha | 135 ha |
| 2002 | 183 ha | 126 ha | 309 ha |
| 2003 | 66 ha | 69 ha | 135 ha |
| 2004 | 164 ha | 26 ha | 190 ha |
| 2005 | 139 ha | 20 ha | 159 ha |
| 2006 | 344 ha | 93 ha | 437 ha |
| 2007 | 197 ha | 131 ha | 328 ha |
| 2008 | 194 ha | 78 ha | 272 ha |
| 2009 | 385 ha | 61 ha | 446 ha |
| 2010 | 190 ha | 61 ha | 251 ha |
| 2011 | 54 ha | 22 ha | 76 ha |
| 2012 | 271 ha | 40 ha | 311 ha |
| 2013 | 259 ha | 13 ha | 272 ha |
| 2014 | 319 ha | 7 ha | 326 ha |
| 2015 | 584 ha | 8 ha | 592 ha |
| 2016 | 335 ha | 35 ha | 370 ha |
| 2017 | 395 ha | 14 ha | 409 ha |
| 2018 | 300 ha | 18 ha | 318 ha |
| 2019 | 393 ha | 16 ha | 409 ha |
| 2020 | 576 ha | 61 ha | 637 ha |
| 2021 | 247 ha | 72 ha | 319 ha |
| 2022 | 245 ha | 10 ha | 255 ha |
| 2023 | 299 ha | 19 ha | 318 ha |
| 2024 | 121 ha | 22 ha | 143 ha |
| 2025 | 227 ha | 24 ha | 251 ha |
What is causing deforestation around Timika?
- Farms, pasture and plantationscleared for good75% · 5,770 ha
- Towns and roadscleared for good9.8% · 755 ha
- Storms, floods and other natural causescan grow back6.8% · 520 ha
Also: shifting farming, logging, mining and energy, wildfires, 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
- 21,300 ha
- Forest in 2020
- 18,700 ha
- Overall change
- −2,590 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Timika shrank from about 21,300 hectares to 18,700 hectares, a net loss of about 2,590 hectares (−12%). New forest grew on about 917 hectares, but 3,510 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 Timika
Same 2 km radius, same index — so they compare directly.
- Jayapura480.3 km
Indonesia
- Tree cover
- 60%
- Air quality
- 26
- Manokwari516.1 km
Indonesia
- Tree cover
- 46%
- Air quality
- 64
- Merauke586.4 km
Indonesia
- Tree cover
- 34%
- Air quality
- 46
- Sorong746.4 km
Indonesia
- Tree cover
- 50%
- Air quality
- 17
- Mount Hagen825.8 km
Papua New Guinea
- Tree cover
- 53%
- Air quality
- 26
- Ambon970.2 km
Indonesia
- Tree cover
- 43%
- Air quality
- 43
Build your own
Compare Timika with anywhere
This place
Timika
Use this data
Put Timika's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Timika
What is the air quality (AQI) in Timika right now?
The latest reading for Timika shows an AQI of 76 (Moderate), observed Nov 11, 16:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Timika today?
At AQI 76 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Timika been like this week?
Over the last 7 days, the CAMS air-quality model put Timika's daily AQI at 91 on average, from 65 on Nov 6 to an hourly peak of 154 on Nov 10. On 2 of those days the average was above 100, unhealthy for sensitive groups.
Is Timika'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 Timika lost since 2001?
Since 2001, the area within 10 km of Timika has lost about 7,670 hectares of forest (about 11,000 football pitches): 32% of the forest it had in 2000. Most of it (86%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 257 hectares a year in 2021–2025, down from 429 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Timika shrank from about 21,300 hectares to 18,700 hectares, a net loss of about 2,590 hectares (−12%). New forest grew on about 917 hectares, but 3,510 hectares were lost.
What is the tree count in Timika?
Timika has an estimated 64,381 trees across the 12.44 km² of land measured — 20.7% tree cover, 9 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Timika need?
Timika needs roughly 28,925 more trees to close a 9-point shortfall against its 30% tree-cover target — about 636.4 t of extra CO₂ absorbed per year once grown.
How are Timika'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 Timika; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address