SmogRank / Paraguay / Asuncion

Air quality in Asunción

Asuncion, Paraguay. PM2.5 from 3 low-cost sensors, updated hourly.

13.7 µg/m³
Moderate

Latest hour (03:00 UTC), 0.9× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#150
of 2,341 · 20.8 µg/m³
30 days
#217
of 2,337 · 16.0 µg/m³
Year
–
not enough data

Why it ranks here

Likely fire smoke. On Sep 28, when Asunción averaged 34.0 µg/m³ (its typical day: 13.8), NASA satellites detected 1,485 fires within 300 km (128 within 100 km). Smoke from those fires is a likely contributor; we don't check which way the wind blew, and mapped smoke can be high above the ground.

Based on Asunción's own measurements, with fire detections from NASA FIRMS and smoke maps from NOAA HMS; causes are the usual kinds for a pattern like this, not a confirmed source.

Last 4 days, hour by hour

15302026-10-01 00:00 UTC: 12.5 µg/m³2026-10-01 01:00 UTC: 19.6 µg/m³2026-10-01 02:00 UTC: 20.2 µg/m³2026-10-01 03:00 UTC: 13.7 µg/m³Sep 28Sep 29Sep 30

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

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data2026-04-23: no data2026-04-24: no data2026-04-25: no data2026-04-26: no data2026-04-27: no data2026-04-28: no data2026-04-29: no data2026-04-30: no data2026-05-01: no data2026-05-02: no data2026-05-03: no data2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: no data2026-05-08: no data2026-05-09: no data2026-05-10: no data2026-05-11: no data2026-05-12: no data2026-05-13: no data2026-05-14: no data2026-05-15: no data2026-05-16: no data2026-05-17: no data2026-05-18: no data2026-05-19: no data2026-05-20: no data2026-05-21: no data2026-05-22: no data2026-05-23: no data2026-05-24: no data2026-05-25: no data2026-05-26: no data2026-05-27: no data2026-05-28: no data2026-05-29: no data2026-05-30: no data2026-05-31: no data2026-06-01: no data2026-06-02: no data2026-06-03: no data2026-06-04: no data2026-06-05: no data2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: no data2026-06-10: no data2026-06-11: no data2026-06-12: no data2026-06-13: no data2026-06-14: no data2026-06-15: no data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: no data2026-06-22: no data2026-06-23: no data2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: no data2026-06-28: no data2026-06-29: no data2026-06-30: no data2026-07-01: no data2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: 19.4 µg/m³2026-07-17: 21.7 µg/m³2026-07-18: 15.6 µg/m³2026-07-19: 11.4 µg/m³2026-07-20: 15.7 µg/m³2026-07-21: 14.3 µg/m³2026-07-22: 1.9 µg/m³2026-07-23: 7.5 µg/m³2026-07-24: 13.6 µg/m³2026-07-25: 15.2 µg/m³2026-07-26: 21.4 µg/m³2026-07-27: no data2026-07-28: no data2026-07-29: 34.5 µg/m³2026-07-30: 20.3 µg/m³2026-07-31: 8.6 µg/m³2026-08-01: 13.3 µg/m³2026-08-02: 9.5 µg/m³2026-08-03: 12.1 µg/m³2026-08-04: 4.3 µg/m³2026-08-05: 12.7 µg/m³2026-08-06: 6.3 µg/m³2026-08-07: 5.2 µg/m³2026-08-08: 12.4 µg/m³2026-08-09: 6.9 µg/m³2026-08-10: 5.6 µg/m³2026-08-11: 27.3 µg/m³2026-08-12: 11.1 µg/m³2026-08-13: 14.9 µg/m³2026-08-14: 8.1 µg/m³2026-08-15: 24.3 µg/m³2026-08-16: 23.6 µg/m³2026-08-17: no data2026-08-18: no data2026-08-19: 2.3 µg/m³2026-08-20: 7.6 µg/m³2026-08-21: 16.4 µg/m³2026-08-22: 12.8 µg/m³2026-08-23: 12.3 µg/m³2026-08-24: 18.6 µg/m³2026-08-25: 27.0 µg/m³2026-08-26: 21.5 µg/m³2026-08-27: 23.8 µg/m³2026-08-28: 32.2 µg/m³2026-08-29: 22.7 µg/m³2026-08-30: 13.0 µg/m³2026-08-31: 10.1 µg/m³2026-09-01: 5.3 µg/m³2026-09-02: 9.0 µg/m³2026-09-03: 12.2 µg/m³2026-09-04: 16.9 µg/m³2026-09-05: 9.5 µg/m³2026-09-06: 5.3 µg/m³2026-09-07: 15.6 µg/m³2026-09-08: 28.8 µg/m³2026-09-09: 29.6 µg/m³2026-09-10: 26.8 µg/m³2026-09-11: 17.0 µg/m³2026-09-12: 6.5 µg/m³2026-09-13: 3.5 µg/m³2026-09-14: 9.2 µg/m³2026-09-15: 14.0 µg/m³2026-09-16: 18.9 µg/m³2026-09-17: 23.8 µg/m³2026-09-18: 21.8 µg/m³2026-09-19: 14.1 µg/m³2026-09-20: 18.4 µg/m³2026-09-21: 15.3 µg/m³2026-09-22: 1.4 µg/m³2026-09-23: 12.3 µg/m³2026-09-24: 28.4 µg/m³2026-09-25: 19.4 µg/m³2026-09-26: 17.9 µg/m³2026-09-27: 20.1 µg/m³2026-09-28: 34.0 µg/m³2026-09-29: 19.1 µg/m³2026-09-30: 6.8 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

35 of 73 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#2331AugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15JanFebMarAprMayJunJul 2026: 15.8 µg/m³JulAug 2026: 14.4 µg/m³AugSep 2026: 16.0 µg/m³SepOctNovDec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
Barrio SajoniaCC BY 4.0AirGradientLow-cost
Plaza Herminio GiménezCC BY 4.0AirGradientLow-cost
Encarnación - CostaneraCC BY 4.0AirGradientLow-cost

No reference monitor here, so the value is the median of low-cost sensors (at least two reporting each hour). Low-cost sensors can read high in humid air. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Updated 2026-10-01 04:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.