Asunción vs San Lorenzo
Tree cover and air quality for both, measured the same way: Sentinel-2 imagery at 10 m detail over a 2 km radius from each city centre, and the live US EPA air quality index. Same radius and same index, so the two numbers compare directly.
San Lorenzo has more tree cover — 40.2% against 20.9%.
Asunción has cleaner air right now — AQI 76 against 128.
- Tree cover gap
- 19.3 points
- San Lorenzo is ahead.
- Air quality gap
- 52 AQI
- Asunción is cleaner.
- Trees between them
- 68.8K
- San Lorenzo has more standing.
Paraguay
Paraguay
Tree cover
Share of the 2 km radius under canopy.
20.9%
40.2%
Air quality index
US EPA index, live, with its band. Lower is better.
76 · Moderate
128 · Unhealthy for sensitive groups
Trees standing
Estimated from the measured canopy area.
57.5K
126K
Trees still needed
To reach the same canopy target. Fewer is better.
25.0K
0
CO₂ absorbed each year
By the trees already standing.
1.3M kg
2.8M kg
Air quality in detail
What each city is breathing
Concentrations in µg/m³, measured at the same moment as the index above. Lower is better in every row. Both are read from nearby ground stations.
PM2.5
Fine particles, the pollutant that usually sets the index.
24 µg/m³
46.6 µg/m³
The last week, day by day
A single reading can catch a city on a bad afternoon. The week says whether it was the weather or the place.
| Day | Asunción | San Lorenzo |
|---|---|---|
| 21 Sept | 39 | 39 |
| 22 Sept | 25 | 25 |
| 23 Sept | 29 | 29 |
| 24 Sept | 40 | 40 |
| 25 Sept | 44 | 44 |
| 26 Sept | 36 | 36 |
| 27 Sept | 46 | 46 |
Reading these numbers
What is actually being measured
Tree cover
The share of ground under canopy inside a 2 km radius of each city centre, read from Sentinel-2 satellite imagery at 10 m detail. It is a measurement of that circle, not of the whole municipality — which is exactly what makes the two comparable, since city boundaries are drawn to wildly different rules around the world. San Lorenzo leads here at 40.2%.
Air quality index
The live US EPA index, computed from current pollutant concentrations — ground stations where a city has them nearby, and a model everywhere else. It moves hour to hour, so this is a snapshot rather than a verdict on either place: Asunción reads 76 (moderate) and San Lorenzo reads 128 (unhealthy for sensitive groups) right now.
Frequently asked
Asunción and San Lorenzo, answered
Which has more trees, Asunción or San Lorenzo?
San Lorenzo, with roughly 126,292 trees inside its 2 km radius against 57,452. Tree cover tells a slightly different story from raw count: San Lorenzo has the denser canopy at 40.2%.
Which has better air quality, Asunción or San Lorenzo?
Asunción right now, at AQI 76 against 128 — a gap of 52 points. This is a live reading rather than an annual average, so it can reverse within a day.
How many more trees does each city need?
Asunción needs about 25,015 more to reach its canopy target, and San Lorenzo about 0. The target is the same share of ground for both, so the figures are directly comparable.
Are these two measured the same way?
Yes — that is the point of the page. Identical radius, identical satellite source at 10 m detail, and the same US EPA index for air. Nothing here is adjusted for population, city limits or climate, so the numbers describe the same-sized circle of ground in each place.
Keep going
Other comparisons nearby
Build your own
Compare Asunción with somewhere else
This place
Asunción
Want a different pair? Browse comparisons or measure any address.