Air quality comparison · Paraguay, 302 km apart
Asunción vs Ciudad del Este Air quality index (AQI) today
Ciudad del Este has cleaner air than Asunción right now: AQI 21 (Good) against 35 (Good).
Both sit in the same EPA band, so the health advice is the same for each today. Over the past 7 days, on modeled daily averages, Ciudad del Este averaged AQI 46 against 47, and it was the cleaner of the two on 3 of those days. Ciudad del Este has lost more forest since 2001. Ciudad del Este has more tree cover.
Paraguay
AQI 35
Good
Cleaner right now
- PM2.5
- 6.3 µg/m³
- Main pollutant
- PM2.5
- Source
- Ground station
- Reading
- Nov 11, 13:00 local
Paraguay
AQI 21
Good
Cleaner right now
- PM2.5
- 3.8 µg/m³
- Main pollutant
- PM2.5
- Source
- Ground station
- Reading
- Nov 11, 13:00 local
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Asunción35Ciudad del Este21
Head to head
Asunción vs Ciudad del Este at a glance
Ciudad del Este is ahead on 5 of 6 measures, and Asunción on 1. The better figure in each row is marked.
| Asunción | Ciudad del Este | |
|---|---|---|
| Air quality nowUS AQI. Lower is better. | 35 | 21 (better) |
| PM2.5Fine particles, µg/m³. | 6.3 | 3.8 (better) |
| Past week's averageUS AQI, 7 days. | 47 | 46 (better) |
| Forest lost since 2001Within 10 km of the center. | 752 ha (better) | 873 ha |
| Tree coverWithin 2 km of the center. | 25.7% | 36.6% (better) |
| Trees still neededTo reach a healthy canopy. | 11.8K | 0 (better) |
Air quality today
What is the air like in Asunción and Ciudad del Este right now?
Ciudad del Este has cleaner air than Asunción right now: AQI 21 (Good) against 35 (Good). PM2.5 is setting the index in both.
Both readings come from nearby ground stations.
AsunciónCiudad del Este
Concentrations at the same moment as the index above, for the pollutants both places report. Lower is better. The dark marks on the PM2.5 and PM10 rows show the WHO's 24-hour guidelines (15 and 45 µg/m³).
The past week
Which had cleaner air over the past 7 days?
Over the past 7 days, on modeled daily averages, Ciudad del Este averaged AQI 46 against 47, and it was the cleaner of the two on 3 of those days. A single reading can catch a city on a bad afternoon; the week says whether it was the weather or the place.
- Cleaner days
- Asunción4Ciudad del Este3
- Average AQI
- Asunción47Ciudad del Este46
- Worst day, AQI
- Asunción59Ciudad del Este62
The daily numbers (7 days)
| Day | Asunción | Ciudad del Este |
|---|---|---|
| Nov 4 | 59 | 38 |
| Nov 5 | 37 | 41 |
| Nov 6 | 48 | 54 |
| Nov 7 | 59 | 44 |
| Nov 8 | 38 | 34 |
| Nov 9 | 46 | 52 |
| Nov 10 | 45 | 62 |
Daily averages from the CAMS atmospheric model for both places, so the week compares like with like. They can differ from today's reading at the top of the page wherever that comes from a ground station.
What it means today
Is it safe to go outside in Asunción and Ciudad del Este today?
Air quality is satisfactory for everyone. Both are in the same EPA band today (Good), so the advice is the same.
Exercise outdoors
A good day to be active outside.
Windows
Open them to air the house.
Masks
Not needed.
Air purifier
Not needed.
Against everywhere else
How do Asunción and Ciudad del Este compare with the rest of the world?
Right now Asunción's air is cleaner than 75% of the 5,420 places Airleaf tracks, and Ciudad del Este's is cleaner than 88%. Within Paraguay, that is 80% and 100% of its 6 measured places.
Cleaner air than…
- Asunción
- Beats 75%
- Ciudad del Este
- Beats 88%
More tree cover than…
- Asunción
- Beats 59%
- Ciudad del Este
- Beats 79%
Includes model estimates as well as station readings, so it can differ from our most polluted and cleanest air rankings, which use station readings only.
Deforestation · 2001–2025
Which has lost more forest, Asunción or Ciudad del Este?
Ciudad del Este has lost more: about 873 ha of forest within 10 km of its center from 2001 to 2025, against 752 ha around Asunción. 858 ha of that was cleared for good, for farms, mines or towns.
Measured within 10 km of each center, from the yearly satellite maps of forest loss: a wider circle than the one for tree cover, because forest is usually lost at a city's edges.
Worst year: 2022, with 88 ha lost.
Worst year: 2003, with 96 ha lost.
| Asunción | Ciudad del Este | |
|---|---|---|
| Forest lost since 2001Cleared, burned or logged. | 752 ha (better) | 873 ha |
| Share of its forestOf what it had in 2000. | 8.5% (better) | 8.6% |
| Cleared for goodTurned into farms, mines or towns. | 656 ha (better) | 858 ha |
| Recent trend2021–2025 against the five years before. | Holding steady | Too little to call |
| Main known cause | Towns and roads (37%) | Farms, pasture and plantations (63%) |
Satellite timelapses
Watch both change, year by year
A clear satellite photo a year of the land around each city. Press play, turn on the forest cleared since the first year, or drag the before and after.
Asunción
2017: satellite photo from March 2017 of a 5 × 5 km area about 7 km north of the city center.
Ciudad del Este
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km southwest of the city center.
Trees
Which has more trees, Asunción or Ciudad del Este?
Ciudad del Este has more tree cover: 36.6% of the land within 2 km of its center against 25.7% around Asunción, or about 114,982 trees against 70,647.
The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.
| Asunción | Ciudad del Este | |
|---|---|---|
| Trees standingEstimated from the canopy area. | 70.6K | 115K (better) |
| Trees still neededTo reach the target. Fewer is better. | 11.8K | 0 (better) |
| CO₂ absorbed each yearBy the trees already standing. | 1.6M kg | 2.5M kg (better) |
Tree cover on the satellite image
The same 2 km radius around each center, with the tree cover the satellite found marked on it.
Reading these numbers
How this comparison is made
Air quality index
The US EPA index, computed from current pollutant concentrations: ground stations where a place has them nearby, and the CAMS atmospheric model everywhere else. It moves hour to hour, so it is a snapshot rather than a verdict on either place. The guideline marks are from the WHO's 2021 air quality guidelines.
Trees and forest
Tree cover is the share of ground under canopy within 2 km of each center, read from Sentinel-2 satellite imagery at 10 m detail. It measures that circle, not the whole municipality, which is what makes the two comparable. Forest loss comes from the University of Maryland's Global Forest Change maps.
More on the method on the About Airleaf page.
Frequently asked
Asunción vs Ciudad del Este: your questions answered
Is Ciudad del Este cleaner than Asunción?
On air quality, yes, right now: Ciudad del Este reads AQI 21 against 35, a gap of 14 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. Over the past 7 days, on modeled daily averages, Ciudad del Este averaged AQI 46 against 47, and it was the cleaner of the two on 3 of those days.
Is it safe to exercise outdoors in Asunción and Ciudad del Este today?
The advice is the same for both today. Air quality is satisfactory for everyone. Asunción reads AQI 35 and Ciudad del Este reads AQI 21.
Which has lost more forest, Asunción or Ciudad del Este?
Ciudad del Este has lost more: about 873 ha of forest within 10 km of its center from 2001 to 2025, against 752 ha around Asunción. 858 ha of that was cleared for good, for farms, mines or towns.
Which has more trees, Asunción or Ciudad del Este?
Ciudad del Este has more tree cover: 36.6% of the land within 2 km of its center against 25.7% around Asunción, or about 114,982 trees against 70,647. Both figures describe the same-sized circle of ground around each center, not the whole municipality.
How many more trees do Asunción and Ciudad del Este need?
Asunción needs about 11,820 more to reach its canopy target of 30%, and Ciudad del Este about 0 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.
Are Asunción and Ciudad del Este measured the same way?
The method is the same: the US EPA index for air, and Sentinel-2 satellite imagery at 10 m detail over an identical radius for trees. Both readings come from nearby ground stations. Nothing is adjusted for population, city limits or climate.
How often does the Asunción vs Ciudad del Este comparison update?
The air readings refresh about once an hour, and each reading's local time is shown at the top of the page. Tree cover comes from the latest clear satellite image of each area (Sep 17, 2026 and Sep 16, 2026), and the forest figures are published yearly.
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