City report · Bosnia and Herzegovina
Zenica Air quality today
Air quality in Zenica currently reads AQI 161 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 161
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 69.8
- tree cover
- 40.5%
- trees in this area
- 127K
- more trees needed
- 0
Measured across a 2 km radius around Zenica, Bosnia and Herzegovina (12.57 km²), from a satellite image of Sep 8, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Zenica · AQI 161 (Unhealthy)
Zenica's tree count comes to 126,598 trees across 12.51 km² of land, already at or above the 40% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Zenica today: AQI 161, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · TRAVNIK, 19.1 km away · median of 2 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
69.8
PM10
99.3
NO₂
55.1
O₃
—
SO₂
35.3
CO
—
Data: OpenAQ · EEA
- 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 Zenica's daily AQI at 113 on average, from 93 on Nov 10 to an hourly peak of 186 on Nov 8.
Where Zenica stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Zenica: Healthy tree cover
40.5% tree cover against a 40% healthy-neighborhood target, across 12.51 km² of land.
Trees in this area
126,598
Target trees
126,598
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Zenica lost?
Since 2001, the area within 10 km of Zenica has lost about 214 hectares of forest (about 300 football pitches): 1.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 76 hectares (35%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 214 haabout 300 football pitches
- Share of its forest
- 1.4%of what there was in 2000
- Cleared for good
- 76 hadeforestation: turned into farms, mines or towns
The worst year was 2004, when about 40 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 | under 1 ha | 1 ha | 2 ha |
| 2002 | 1 ha | 6 ha | 7 ha |
| 2003 | under 1 ha | 3 ha | 3 ha |
| 2004 | 1 ha | 39 ha | 40 ha |
| 2005 | under 1 ha | 2 ha | 3 ha |
| 2006 | under 1 ha | 2 ha | 2 ha |
| 2007 | 2 ha | 4 ha | 5 ha |
| 2008 | 1 ha | 3 ha | 4 ha |
| 2009 | under 1 ha | 2 ha | 2 ha |
| 2010 | 3 ha | 5 ha | 8 ha |
| 2011 | 5 ha | 3 ha | 8 ha |
| 2012 | 1 ha | 13 ha | 14 ha |
| 2013 | 2 ha | 10 ha | 12 ha |
| 2014 | 1 ha | 3 ha | 4 ha |
| 2015 | under 1 ha | 2 ha | 3 ha |
| 2016 | 10 ha | 9 ha | 19 ha |
| 2017 | 5 ha | under 1 ha | 6 ha |
| 2018 | 2 ha | 5 ha | 7 ha |
| 2019 | 4 ha | 3 ha | 7 ha |
| 2020 | 26 ha | 3 ha | 28 ha |
| 2021 | 4 ha | 1 ha | 5 ha |
| 2022 | under 1 ha | 4 ha | 4 ha |
| 2023 | under 1 ha | 10 ha | 11 ha |
| 2024 | 1 ha | 5 ha | 6 ha |
| 2025 | 3 ha | 3 ha | 7 ha |
What is causing deforestation around Zenica?
- Loggingcan grow back55% · 117 ha
- Towns and roadscleared for good33% · 71 ha
- Farms, pasture and plantationscleared for good1.1% · 2 ha
Also: mining and energy, 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
- 17,300 ha
- Forest in 2020
- 17,400 ha
- Overall change
- +194 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Zenica stayed about the same size, at about 17,400 hectares: new forest grew on about 413 hectares, and about 219 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
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Frequently asked
Questions about Zenica
What is the air quality (AQI) in Zenica right now?
The latest reading for Zenica shows an AQI of 161 (Unhealthy), measured Nov 11, 17:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is TRAVNIK, 19.1 km away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Zenica today?
At AQI 161 (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 Zenica been like this week?
Over the last 7 days, the CAMS air-quality model put Zenica's daily AQI at 113 on average, from 93 on Nov 10 to an hourly peak of 186 on Nov 8. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Zenica lost since 2001?
Since 2001, the area within 10 km of Zenica has lost about 214 hectares of forest (about 300 football pitches): 1.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 76 hectares (35%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Zenica stayed about the same size, at about 17,400 hectares: new forest grew on about 413 hectares, and about 219 hectares were lost.
What is the tree count in Zenica?
Zenica has an estimated 126,598 trees across the 12.51 km² of land measured — 40.5% tree cover, already past the 40% tree-cover target set for this area.
How many more trees does Zenica need?
Zenica has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Zenica's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Zenica, 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 Zenica; the tree count is an estimate derived from that cover.
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