Country comparison · 78 cities measured
Algeria vs Democratic Republic of the Congo Air quality index (AQI) and deforestation
Algeria has cleaner air than Democratic Republic of the Congo right now: its cities average AQI 47 against 49.
Democratic Republic of the Congo has lost more forest since 2001. Democratic Republic of the Congo has more tree cover in its cities.
Average of 40 cities
AQI 47
Good
Cleaner on average
- Tree cover
- 8.0%
- Forest lost since 2001
- 234,000 ha
Average of 38 cities
AQI 49
Good
Cleaner on average
- Tree cover
- 28.4%
- Forest lost since 2001
- 22.5 million ha
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Algeria47Democratic Republic of the Congo49
Head to head
Algeria vs Democratic Republic of the Congo at a glance
Algeria is ahead on 3 of 5 measures, and Democratic Republic of the Congo on 2. The better figure in each row is marked.
| Algeria | Democratic Republic of the Congo | |
|---|---|---|
| Average air qualityUS AQI, all measured cities. | 47 (better) | 49 |
| Cities over AQI 100Not fine for sensitive groups. | 0% (better) | 3% |
| Forest lost since 2001The whole country. | 234,000 ha (better) | 22.5 million ha |
| Share of its forest lostOf what it had in 2000. | 19% | 11% (better) |
| Average tree coverAcross its measured cities. | 8.0% | 28.4% (better) |
Air quality today
Is Algeria cleaner than Democratic Republic of the Congo?
On air quality, yes, right now. Algeria has cleaner air than Democratic Republic of the Congo right now: its cities average AQI 47 against 49.
0% of the measured cities in Algeria are over AQI 100 today, the point where the air stops being fine for sensitive groups, against 3% in the Democratic Republic of the Congo.
How each country's cities split across the air quality bands
Algeria
- Good27 (68%)
- Moderate13 (33%)
Democratic Republic of the Congo
- Good22 (58%)
- Moderate15 (39%)
- Unhealthy for sensitive groups1 (3%)
Every measured city, including model estimates where no ground station is near.
Against everywhere else
How do Algeria and Democratic Republic of the Congo compare with other countries?
Right now the cities of Algeria average cleaner air than 58% of the 171 countries Airleaf has enough cities to average, and those of the Democratic Republic of the Congo than 53%.
Cleaner air than…
- Algeria
- Beats 58%
- Democratic Republic of the Congo
- Beats 53%
More tree cover than…
- Algeria
- Beats 16%
- Democratic Republic of the Congo
- Beats 64%
Deforestation · 2001–2025
Which country has lost more forest, Algeria or Democratic Republic of the Congo?
Democratic Republic of the Congo has lost more: about 22.5 million ha of forest from 2001 to 2025, against 234,000 ha in Algeria, or 96 times as much. 3.48 million ha of Democratic Republic of the Congo's was cleared for good, for farms, mines or towns; the rest burned, was logged or can grow back.
The whole country, from the yearly satellite maps of forest loss: unlike the city averages above, this counts every forest, not just the land around cities.
Worst year: 2017, with 44,700 ha lost.
Worst year: 2017, with 1.47 million ha lost.
| Algeria | Democratic Republic of the Congo | |
|---|---|---|
| Forest lost since 2001Cleared, burned or logged. | 234,000 ha (better) | 22.5 million ha |
| Share of its forestOf what it had in 2000. | 19% | 11% (better) |
| Cleared for goodTurned into farms, mines or towns. | 20,600 ha (better) | 3.48 million ha |
| Recent trend2021–2025 against the five years before. | Holding steady | Holding steady |
| Main known cause | Wildfires (89%) | Shifting farming (82%) |
Trees
Which country has more tree cover, Algeria or Democratic Republic of the Congo?
Democratic Republic of the Congo does: its measured cities average 28.4% tree cover against 8.0%, a gap of 20.5 percentage points.
| Algeria | Democratic Republic of the Congo | |
|---|---|---|
| Trees standingSummed across measured cities. | 920K | 3.2M (better) |
| Cities below their targetShort of the canopy target. | 98% | 61% (better) |
| Trees still neededTo reach those targets. | 2.7M | 1.0M (better) |
Behind the averages
The cities behind Algeria and Democratic Republic of the Congo
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: 40 in Algeria and 38 in the Democratic Republic of the Congo, each read over the same 2 km radius, on the US EPA index. Rural land and unmeasured towns are not in it.
Coverage shapes the number
A country measured mostly in its capital reads differently from one measured across dozens of towns. Algeria rests on 40 cities against 38, so its average is the steadier of the two. Forest figures come from the University of Maryland's Global Forest Change maps.
Frequently asked
Algeria vs Democratic Republic of the Congo: your questions answered
Is Algeria cleaner than Democratic Republic of the Congo?
On air quality, yes, right now: Algeria's cities average AQI 47 against 49 on the US EPA index. These are live readings averaged across cities, so the gap moves with the weather.
Which country has lost more forest, Algeria or Democratic Republic of the Congo?
Democratic Republic of the Congo has lost more: about 22.5 million ha of forest from 2001 to 2025, against 234,000 ha in Algeria, or 96 times as much. 3.48 million ha of Democratic Republic of the Congo's was cleared for good, for farms, mines or towns; the rest burned, was logged or can grow back.
Which country has more tree cover, Algeria or Democratic Republic of the Congo?
Democratic Republic of the Congo does: its measured cities average 28.4% tree cover against 8.0%, a gap of 20.5 percentage points.
How many cities are the Algeria and Democratic Republic of the Congo figures based on?
40 measured cities in Algeria and 38 in the Democratic Republic of the Congo. 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.
Does this cover the whole of Algeria and the Democratic Republic of the Congo?
The air and tree figures are not: they are the cities Airleaf has measured, each over the same 2 km radius, so treat them as a comparison of urban air and urban tree cover. The forest figures are: they count every forest in the country.
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