City report · Slovenia
Novo Mesto Air quality today
Air quality in Novo Mesto currently reads AQI 53 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 53
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 10.0
- tree cover
- 40.5%
- trees in this area
- 126K
- more trees needed
- 0
Measured across a 2 km radius around 8000 Novo Mesto, Slovenia (12.57 km²), from a satellite image of Sep 16, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Novo Mesto · AQI 53 (Moderate)
Novo Mesto's tree count comes to 126,217 trees across 12.47 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Novo Mesto today: AQI 53, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Novo mesto, 700 m away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.0
PM10
14.6
NO₂
13.0
O₃
—
SO₂
—
CO
—
Data: OpenAQ · EEA, Slovenian Environment Agency
- 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 Novo Mesto's daily AQI at 72 on average, from 61 on Nov 10 to an hourly peak of 94 on Nov 8.
Where Novo Mesto stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Novo Mesto: Healthy tree cover
40.5% tree cover against a 30% healthy-neighborhood target, across 12.47 km² of land.
Trees in this area
126,217
Target trees
126,217
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Novo Mesto lost?
Since 2001, the area within 10 km of Novo Mesto has lost about 1,080 hectares of forest (about 1,500 football pitches): 5.8% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 327 hectares (30%) 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 west of the city center.
- Forest lost since 2001
- 1,080 haabout 1,500 football pitches
- Share of its forest
- 5.8%of what there was in 2000
- Cleared for good
- 327 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 58 hectares a year in 2021–2025, against 67 hectares a year in 2016–2020. The worst year was 2016, when about 100 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 | 7 ha | 7 ha |
| 2002 | 3 ha | 13 ha | 16 ha |
| 2003 | under 1 ha | 6 ha | 7 ha |
| 2004 | 28 ha | 16 ha | 44 ha |
| 2005 | 67 ha | 23 ha | 90 ha |
| 2006 | 15 ha | 21 ha | 36 ha |
| 2007 | 46 ha | 27 ha | 73 ha |
| 2008 | 9 ha | 4 ha | 14 ha |
| 2009 | 41 ha | 34 ha | 75 ha |
| 2010 | 13 ha | 12 ha | 25 ha |
| 2011 | 2 ha | 11 ha | 12 ha |
| 2012 | 7 ha | 7 ha | 14 ha |
| 2013 | 5 ha | 8 ha | 13 ha |
| 2014 | 3 ha | 14 ha | 17 ha |
| 2015 | 5 ha | 11 ha | 16 ha |
| 2016 | 12 ha | 88 ha | 100 ha |
| 2017 | 3 ha | 57 ha | 60 ha |
| 2018 | 14 ha | 64 ha | 78 ha |
| 2019 | 8 ha | 47 ha | 54 ha |
| 2020 | 6 ha | 35 ha | 41 ha |
| 2021 | 2 ha | 41 ha | 43 ha |
| 2022 | 2 ha | 41 ha | 43 ha |
| 2023 | 10 ha | 78 ha | 88 ha |
| 2024 | 15 ha | 37 ha | 52 ha |
| 2025 | 9 ha | 52 ha | 61 ha |
What is causing deforestation around Novo Mesto?
- Loggingcan grow back68% · 737 ha
- Towns and roadscleared for good27% · 289 ha
- Farms, pasture and plantationscleared for good3.5% · 38 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
- 19,900 ha
- Forest in 2020
- 19,700 ha
- Overall change
- −202 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Novo Mesto stayed about the same size, at about 19,700 hectares: new forest grew on about 123 hectares, and about 325 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 Novo Mesto
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Novo Mesto with anywhere
This place
Novo Mesto
Use this data
Put Novo Mesto's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Novo Mesto
What is the air quality (AQI) in Novo Mesto right now?
The latest reading for Novo Mesto shows an AQI of 53 (Moderate), measured Nov 11, 17:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Novo mesto, 700 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Novo Mesto today?
At AQI 53 (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 Novo Mesto been like this week?
Over the last 7 days, the CAMS air-quality model put Novo Mesto's daily AQI at 72 on average, from 61 on Nov 10 to an hourly peak of 94 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Novo Mesto lost since 2001?
Since 2001, the area within 10 km of Novo Mesto has lost about 1,080 hectares of forest (about 1,500 football pitches): 5.8% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 327 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 58 hectares a year in 2021–2025, against 67 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Novo Mesto stayed about the same size, at about 19,700 hectares: new forest grew on about 123 hectares, and about 325 hectares were lost.
What is the tree count in Novo Mesto?
Novo Mesto has an estimated 126,217 trees across the 12.47 km² of land measured — 40.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Novo Mesto need?
Novo Mesto has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Novo Mesto's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 8000 Novo Mesto, 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 8000 Novo Mesto; 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