City report · Lazio, Italy
Acilia-Castel Fusano-Ostia Antica Air quality today
Air quality in Acilia-Castel Fusano-Ostia Antica currently reads AQI 13 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 13
Good
- PM2.5, fine particles (µg/m³)
- 2.3
- tree cover
- 12.2%
- trees in this area
- 38.3K
- more trees needed
- 55.9K
Measured across a 2 km radius around Municipio Roma X, Rome, Metropolitan City of Rome Capital, Italy (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Acilia-Castel Fusano-Ostia Antica · AQI 13 (Good)
Acilia-Castel Fusano-Ostia Antica's tree count comes to 38,327 trees across 12.57 km², 18 points below the 30% tree-cover level considered healthy for this area, so roughly 55,920 more trees would close the gap.
Air quality detail
Air quality in Acilia-Castel Fusano-Ostia Antica today: AQI 13, Good
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Point01, 10.1 km away · median of 3 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
2.3
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, Clarity, VasylKor, W
- 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 Acilia-Castel Fusano-Ostia Antica's daily AQI at 49 on average, from 36 on Nov 10 to an hourly peak of 75 on Nov 9.
Where Acilia-Castel Fusano-Ostia Antica stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Acilia-Castel Fusano-Ostia Antica: Critically low
12.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
38,327
Target trees
94,247
More trees needed
55,920
CO₂ if planted / yr
1,230 t
Deforestation · 2001–2025
How much forest has Acilia-Castel Fusano-Ostia Antica lost?
Since 2001, the area within 10 km of Acilia-Castel Fusano-Ostia Antica has lost about 1,020 hectares of forest (about 1,400 football pitches): 21% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 25 hectares (2.4%) 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 southeast of the city center.
- Forest lost since 2001
- 1,020 haabout 1,400 football pitches
- Share of its forest
- 21%of what there was in 2000
- Cleared for good
- 25 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 74 hectares a year in 2021–2025, down from 106 hectares a year in 2016–2020. The worst year was 2020, when about 415 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 2 ha | 59 ha | 60 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | 1 ha |
| 2004 | 2 ha | 13 ha | 15 ha |
| 2005 | 1 ha | 4 ha | 5 ha |
| 2006 | under 1 ha | 4 ha | 5 ha |
| 2007 | 1 ha | 8 ha | 9 ha |
| 2008 | 1 ha | 3 ha | 4 ha |
| 2009 | under 1 ha | 8 ha | 9 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | 2 ha | 2 ha |
| 2013 | under 1 ha | 9 ha | 10 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | 3 ha | 3 ha |
| 2016 | under 1 ha | 3 ha | 4 ha |
| 2017 | under 1 ha | 81 ha | 81 ha |
| 2018 | 3 ha | 20 ha | 23 ha |
| 2019 | under 1 ha | 8 ha | 8 ha |
| 2020 | 2 ha | 413 ha | 415 ha |
| 2021 | under 1 ha | 80 ha | 80 ha |
| 2022 | under 1 ha | 35 ha | 35 ha |
| 2023 | under 1 ha | 60 ha | 60 ha |
| 2024 | 5 ha | 152 ha | 157 ha |
| 2025 | 2 ha | 33 ha | 35 ha |
What is causing deforestation around Acilia-Castel Fusano-Ostia Antica?
- Wildfirescan grow back76% · 780 ha
- Loggingcan grow back18% · 180 ha
- Storms, floods and other natural causescan grow back3.2% · 33 ha
Also: towns and roads, farms, pasture and plantations, 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
- 5,980 ha
- Forest in 2020
- 6,010 ha
- Overall change
- +34 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Acilia-Castel Fusano-Ostia Antica stayed about the same size, at about 6,010 hectares: new forest grew on about 115 hectares, and about 81 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 Acilia-Castel Fusano-Ostia Antica
What is the air quality (AQI) in Acilia-Castel Fusano-Ostia Antica right now?
The latest reading for Acilia-Castel Fusano-Ostia Antica shows an AQI of 13 (Good), measured Nov 11, 16:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Point01, 10.1 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Acilia-Castel Fusano-Ostia Antica today?
At AQI 13 (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 Acilia-Castel Fusano-Ostia Antica been like this week?
Over the last 7 days, the CAMS air-quality model put Acilia-Castel Fusano-Ostia Antica's daily AQI at 49 on average, from 36 on Nov 10 to an hourly peak of 75 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Acilia-Castel Fusano-Ostia Antica lost since 2001?
Since 2001, the area within 10 km of Acilia-Castel Fusano-Ostia Antica has lost about 1,020 hectares of forest (about 1,400 football pitches): 21% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 25 hectares (2.4%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 74 hectares a year in 2021–2025, down from 106 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Acilia-Castel Fusano-Ostia Antica stayed about the same size, at about 6,010 hectares: new forest grew on about 115 hectares, and about 81 hectares were lost.
What is the tree count in Acilia-Castel Fusano-Ostia Antica?
Acilia-Castel Fusano-Ostia Antica has an estimated 38,327 trees across the 12.57 km² measured — 12.2% tree cover, 18 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Acilia-Castel Fusano-Ostia Antica need?
Acilia-Castel Fusano-Ostia Antica needs roughly 55,920 more trees to close a 18-point shortfall against its 30% tree-cover target — about 1,230 t of extra CO₂ absorbed per year once grown.
How are Acilia-Castel Fusano-Ostia Antica's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Municipio Roma X, 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 Municipio Roma X; the tree count is an estimate derived from that cover.
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