City report · Djibouti
Arta Air quality today
Air quality in Arta currently reads AQI 34 (Good): Air quality is satisfactory for everyone.
AQI 34
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.1
- tree cover
- 0.3%
- trees in this area
- 942
- more trees needed
- 93.3K
Measured across a 2 km radius around Arta, Djibouti (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Arta · AQI 34 (Good)
Arta's tree count comes to 942 trees across 12.57 km², 30 points below the 30% tree-cover level considered healthy for this area, so roughly 93,305 more trees would close the gap.
Air quality detail
Air quality in Arta today: AQI 34, Good
Main pollutant: PM2.5 · Observed Nov 11, 14:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.1
PM10
12.7
NO₂
0.4
O₃
77.0
SO₂
0.7
CO
177.0
- 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 Arta's daily AQI at 45 on average, from 27 on Nov 11 to an hourly peak of 72 on Nov 7.
Where Arta stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Arta: Critically low
0.3% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
942
Target trees
94,247
More trees needed
93,305
CO₂ if planted / yr
2,053 t
Deforestation · 2001–2025
How much forest has Arta lost?
There was almost no forest around Arta in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
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. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Arta
What is the air quality (AQI) in Arta right now?
The latest reading for Arta shows an AQI of 34 (Good), observed Nov 11, 14:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Arta today?
At AQI 34 (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 Arta been like this week?
Over the last 7 days, the CAMS air-quality model put Arta's daily AQI at 45 on average, from 27 on Nov 11 to an hourly peak of 72 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Arta lost since 2001?
There was almost no forest around Arta in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
What is the tree count in Arta?
Arta has an estimated 942 trees across the 12.57 km² measured — 0.3% tree cover, 30 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Arta need?
Arta needs roughly 93,305 more trees to close a 30-point shortfall against its 30% tree-cover target — about 2,053 t of extra CO₂ absorbed per year once grown.
How are Arta'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 Arta; the tree count is an estimate derived from that cover.
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