City report · Central Java, Indonesia
Salatiga Air quality today
Air quality in Salatiga currently reads AQI 174 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 174
Unhealthy
- PM2.5, fine particles (µg/m³)
- 74.5
- tree cover
- 40.9%
- trees in this area
- 128K
- more trees needed
- 0
Measured across a 2 km radius around Salatiga, Salatiga City, Central Java, Indonesia (12.57 km²), from a satellite image of Sep 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Salatiga · AQI 174 (Unhealthy)
Salatiga's tree count comes to 128,491 trees across 12.57 km², already at or above the 40% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Salatiga today: AQI 174, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 05:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 45 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 45 km, e.g. West Ungaran and Semarang
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
74.5
PM10
87.8
NO₂
44.4
O₃
7.0
SO₂
7.6
CO
1479.0
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Salatiga's daily AQI at 152 on average, from 128 on Nov 5 to an hourly peak of 226 on Nov 7.
This is the US EPA AQI. How it differs from Indonesia's ISPU
Where Salatiga stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Salatiga: Healthy tree cover
40.9% tree cover against a 40% healthy-neighborhood target, across 12.57 km².
Trees in this area
128,491
Target trees
128,491
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Salatiga lost?
Since 2001, the area within 10 km of Salatiga has lost about 745 hectares of forest (about 1,000 football pitches): 3.3% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 745 haabout 1,000 football pitches
- Share of its forest
- 3.3%of what there was in 2000
- Cleared for good
- 697 hadeforestation: turned into farms, mines or towns
The worst year was 2016, when about 96 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 | 10 ha | 8 ha | 18 ha |
| 2002 | 5 ha | 3 ha | 7 ha |
| 2003 | 7 ha | 1 ha | 9 ha |
| 2004 | 7 ha | 3 ha | 10 ha |
| 2005 | 8 ha | under 1 ha | 9 ha |
| 2006 | 10 ha | 3 ha | 12 ha |
| 2007 | 16 ha | 7 ha | 23 ha |
| 2008 | 15 ha | 2 ha | 18 ha |
| 2009 | 16 ha | 2 ha | 18 ha |
| 2010 | 9 ha | under 1 ha | 9 ha |
| 2011 | 18 ha | 1 ha | 19 ha |
| 2012 | 22 ha | 6 ha | 27 ha |
| 2013 | 25 ha | under 1 ha | 25 ha |
| 2014 | 48 ha | under 1 ha | 49 ha |
| 2015 | 26 ha | under 1 ha | 27 ha |
| 2016 | 95 ha | 1 ha | 96 ha |
| 2017 | 65 ha | under 1 ha | 66 ha |
| 2018 | 35 ha | under 1 ha | 35 ha |
| 2019 | 21 ha | under 1 ha | 22 ha |
| 2020 | 27 ha | under 1 ha | 27 ha |
| 2021 | 29 ha | under 1 ha | 29 ha |
| 2022 | 22 ha | 1 ha | 23 ha |
| 2023 | 93 ha | 2 ha | 94 ha |
| 2024 | 52 ha | 2 ha | 54 ha |
| 2025 | 18 ha | 1 ha | 19 ha |
What is causing deforestation around Salatiga?
- Farms, pasture and plantationscleared for good57% · 426 ha
- Towns and roadscleared for good36% · 271 ha
- Wildfirescan grow back3.1% · 23 ha
Also: storms, floods and other natural causes, logging, 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
- 23,700 ha
- Forest in 2020
- 23,400 ha
- Overall change
- −354 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Salatiga stayed about the same size, at about 23,400 hectares: new forest grew on about 155 hectares, and about 508 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 Salatiga
Same 2 km radius, same index — so they compare directly.
- Ungaran23.5 km
Indonesia
- Tree cover
- 52%
- Air quality
- 151
- Magelang34.0 km
Indonesia
- Tree cover
- 33%
- Air quality
- 55
- Semarang38.5 km
Indonesia
- Tree cover
- 17%
- Air quality
- 151
- Klaten43.4 km
Indonesia
- Tree cover
- 26%
- Air quality
- 54
- Surakarta44.9 km
Indonesia
- Tree cover
- 13%
- Air quality
- 79
- Depok, Yogyakarta48.4 km
Indonesia
- Tree cover
- 33%
- Air quality
- 75
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Frequently asked
Questions about Salatiga
What is the air quality (AQI) in Salatiga right now?
The latest reading for Salatiga shows an AQI of 174 (Unhealthy), observed Nov 11, 05:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 45 km, US EPA index. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Salatiga today?
At AQI 174 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Salatiga been like this week?
Over the last 7 days, the CAMS air-quality model put Salatiga's daily AQI at 152 on average, from 128 on Nov 5 to an hourly peak of 226 on Nov 7. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Salatiga'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 Salatiga lost since 2001?
Since 2001, the area within 10 km of Salatiga has lost about 745 hectares of forest (about 1,000 football pitches): 3.3% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Salatiga stayed about the same size, at about 23,400 hectares: new forest grew on about 155 hectares, and about 508 hectares were lost.
What is the tree count in Salatiga?
Salatiga has an estimated 128,491 trees across the 12.57 km² measured — 40.9% tree cover, already past the 40% tree-cover target set for this area.
How many more trees does Salatiga need?
Salatiga has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Salatiga'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 Salatiga; the tree count is an estimate derived from that cover.
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