City report · Campania, Italy
Salerno Air quality today
Air quality in Salerno currently reads AQI 21 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 21
Good
- PM2.5, fine particles (µg/m³)
- 4.2
- tree cover
- 52.6%
- trees in this area
- 141K
- more trees needed
- 0
Measured across a 2 km radius around Torrione Alto, Salerno SA, Italy (12.57 km²), from a satellite image of Sep 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Salerno · AQI 21 (Good)
Salerno's tree count comes to 141,452 trees across 10.76 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Salerno today: AQI 21, Good
Main pollutant: PM2.5 · Observed Nov 10, 14:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 245 km, e.g. Naples and Rome
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.2
PM10
11.1
NO₂
4.6
O₃
73.0
SO₂
0.6
CO
133.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Salerno's daily AQI at 51 on average, from 38 on Nov 7 to an hourly peak of 82 on Nov 8.
Where Salerno stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Salerno: Healthy tree cover
52.6% tree cover against a 30% healthy-neighborhood target, across 10.76 km² of land.
Trees in this area
141,452
Target trees
141,452
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Salerno lost?
Since 2001, the area within 10 km of Salerno has lost about 891 hectares of forest (about 1,200 football pitches): 9.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 109 hectares (12%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 6 km north of the city center.
- Forest lost since 2001
- 891 haabout 1,200 football pitches
- Share of its forest
- 9.4%of what there was in 2000
- Cleared for good
- 109 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 72 hectares a year in 2021–2025, against 62 hectares a year in 2016–2020. The worst year was 2025, when about 179 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 | 9 ha | 10 ha |
| 2002 | 1 ha | 4 ha | 5 ha |
| 2003 | under 1 ha | 5 ha | 5 ha |
| 2004 | 4 ha | 12 ha | 17 ha |
| 2005 | 3 ha | 12 ha | 15 ha |
| 2006 | 2 ha | 13 ha | 14 ha |
| 2007 | 3 ha | 4 ha | 6 ha |
| 2008 | 8 ha | 15 ha | 22 ha |
| 2009 | 4 ha | 11 ha | 14 ha |
| 2010 | 5 ha | 9 ha | 14 ha |
| 2011 | 12 ha | 15 ha | 27 ha |
| 2012 | 7 ha | 20 ha | 27 ha |
| 2013 | under 1 ha | 10 ha | 11 ha |
| 2014 | 1 ha | 15 ha | 17 ha |
| 2015 | 2 ha | 15 ha | 17 ha |
| 2016 | 7 ha | 62 ha | 69 ha |
| 2017 | 7 ha | 60 ha | 67 ha |
| 2018 | 3 ha | 93 ha | 96 ha |
| 2019 | 2 ha | 44 ha | 46 ha |
| 2020 | 3 ha | 30 ha | 32 ha |
| 2021 | 2 ha | 34 ha | 37 ha |
| 2022 | 4 ha | 36 ha | 40 ha |
| 2023 | 8 ha | 49 ha | 58 ha |
| 2024 | 10 ha | 38 ha | 47 ha |
| 2025 | 10 ha | 169 ha | 179 ha |
What is causing deforestation around Salerno?
- Loggingcan grow back66% · 591 ha
- Wildfirescan grow back21% · 183 ha
- Towns and roadscleared for good8.4% · 75 ha
Also: farms, pasture and plantations, 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
- 10,800 ha
- Forest in 2020
- 10,800 ha
- Overall change
- +15 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Salerno stayed about the same size, at about 10,800 hectares: new forest grew on about 273 hectares, and about 258 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 Salerno
What is the air quality (AQI) in Salerno right now?
The latest reading for Salerno shows an AQI of 21 (Good), observed Nov 10, 14:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 245 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Salerno today?
At AQI 21 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Salerno been like this week?
Over the last 7 days, the CAMS air-quality model put Salerno's daily AQI at 51 on average, from 38 on Nov 7 to an hourly peak of 82 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 Salerno lost since 2001?
Since 2001, the area within 10 km of Salerno has lost about 891 hectares of forest (about 1,200 football pitches): 9.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 109 hectares (12%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 72 hectares a year in 2021–2025, against 62 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Salerno stayed about the same size, at about 10,800 hectares: new forest grew on about 273 hectares, and about 258 hectares were lost.
What is the tree count in Salerno?
Salerno has an estimated 141,452 trees across the 10.76 km² of land measured — 52.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Salerno need?
Salerno has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Salerno'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 Torrione Alto; the tree count is an estimate derived from that cover.
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