Country comparison
Algeria vs Bangladesh
Averaged across every city Airleaf has measured in each country — 40 in Algeria and 46 in Bangladesh — each read the same way: Sentinel-2 imagery at 10 m detail over a 2 km radius, and the live US EPA air quality index.
Bangladesh averages more tree cover — 54.0% against 7.9%.
Algeria averages cleaner air — AQI 31 against 97.
- Tree cover gap
- 46.1 points
- Bangladesh is ahead.
- Air quality gap
- 66 AQI
- Algeria is cleaner.
- Cities behind it
- 40 vs 46
- How much each average rests on.
40 cities measured
46 cities measured
Average tree cover
Mean across measured cities, each over the same 2 km radius.
7.9%
54.0%
Average air quality index
US EPA index. Lower is better.
31
97
Cities measured
How much each average rests on.
40
46
Trees still needed
Summed across measured cities, to reach their canopy targets. Fewer is better.
2.8M
292K
Behind the averages
The extremes in each country
An average says nothing about how far apart the best and worst places are. These are the measured cities at each end.
Reading these numbers
What a country average is, and is not
It is a mean of cities
Not a national statistic. Each figure is the average across the cities Airleaf has measured in that country — 40 in Algeria and 46 in Bangladesh — each read over the same 2 km radius. Rural land, forest and everywhere unmeasured are not in it, so this compares urban areas rather than territories.
Coverage shapes the number
A country measured mostly in its capital reads differently from one measured across dozens of towns. Bangladesh rests on 46 cities against 40, so its average is the steadier of the two. Both firm up as coverage grows.
Frequently asked
Algeria and Bangladesh, answered
Which country has more tree cover, Algeria or Bangladesh?
Bangladesh, averaging 54.0% across its measured cities against 7.9% — a gap of 46.1 percentage points.
Which has cleaner air, Algeria or Bangladesh?
Algeria, averaging AQI 31 against 97 on the US EPA index. These are live readings averaged across cities, so the gap moves with the weather.
How many cities is each figure based on?
40 measured cities in Algeria and 46 in Bangladesh. Every one was read the same way, so the two averages are directly comparable — but a country with more measured cities has the more settled figure.
Is this the whole country?
No. It is the cities Airleaf has measured, each over a 2 km radius from its centre. Forest, farmland and unmeasured towns are not included, so treat this as a comparison of urban tree cover and urban air rather than of national land cover.
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