SmogRank / Brazil

Air quality in Congonhas, measured until 31 Dec 2025, now estimated

Minas Gerais, Brazil. SmogRank measured this city until 31 Dec 2025; its measured days come first. Today no ground monitor here gives readings we can use, so the numbers after them are model estimates, not measurements.

Its measured days

SmogRank measured Congonhas with ground monitors from MonitorAr (Brazil's Ministry of the Environment) from 1 Jan 2023 to 31 Dec 2025: 1,026 days, averaging 12.1 µg/m³. Its monitors stopped giving readings we can use, so it isn't ranked today, but those days stay on the past boards: 1,026 day boards.

1102031Jan 2025FebMarAprMayJunJulAugSepOctNovDec2025-01-01: 4.5 µg/m³2025-01-02: no data2025-01-03: no data2025-01-04: no data2025-01-05: no data2025-01-06: no data2025-01-07: no data2025-01-08: no data2025-01-09: no data2025-01-10: 6.8 µg/m³2025-01-11: 10.8 µg/m³2025-01-12: 6.2 µg/m³2025-01-13: 6.8 µg/m³2025-01-14: 5.4 µg/m³2025-01-15: 5.7 µg/m³2025-01-16: 7.9 µg/m³2025-01-17: 8.9 µg/m³2025-01-18: 10.7 µg/m³2025-01-19: 10.6 µg/m³2025-01-20: 10.0 µg/m³2025-01-21: 11.5 µg/m³2025-01-22: 13.7 µg/m³2025-01-23: 12.1 µg/m³2025-01-24: 9.9 µg/m³2025-01-25: 9.6 µg/m³2025-01-26: 8.9 µg/m³2025-01-27: 7.5 µg/m³2025-01-28: 7.7 µg/m³2025-01-29: 8.4 µg/m³2025-01-30: 7.1 µg/m³2025-01-31: 8.9 µg/m³2025-02-01: 8.5 µg/m³2025-02-02: 6.3 µg/m³2025-02-03: 9.3 µg/m³2025-02-04: 10.9 µg/m³2025-02-05: 10.3 µg/m³2025-02-06: 13.2 µg/m³2025-02-07: 14.5 µg/m³2025-02-08: 11.3 µg/m³2025-02-09: 9.0 µg/m³2025-02-10: 9.9 µg/m³2025-02-11: 9.7 µg/m³2025-02-12: 8.3 µg/m³2025-02-13: 11.4 µg/m³2025-02-14: 10.5 µg/m³2025-02-15: 10.8 µg/m³2025-02-16: 9.2 µg/m³2025-02-17: 12.5 µg/m³2025-02-18: 14.2 µg/m³2025-02-19: 15.0 µg/m³2025-02-20: 12.8 µg/m³2025-02-21: 13.3 µg/m³2025-02-22: 9.0 µg/m³2025-02-23: 6.0 µg/m³2025-02-24: 7.0 µg/m³2025-02-25: 9.3 µg/m³2025-02-26: 9.5 µg/m³2025-02-27: 10.7 µg/m³2025-02-28: 7.3 µg/m³2025-03-01: 9.5 µg/m³2025-03-02: 7.8 µg/m³2025-03-03: 7.7 µg/m³2025-03-04: 11.0 µg/m³2025-03-05: 6.1 µg/m³2025-03-06: 8.0 µg/m³2025-03-07: 6.4 µg/m³2025-03-08: 9.2 µg/m³2025-03-09: 9.5 µg/m³2025-03-10: 11.8 µg/m³2025-03-11: 9.6 µg/m³2025-03-12: 12.9 µg/m³2025-03-13: 10.1 µg/m³2025-03-14: 10.1 µg/m³2025-03-15: 10.8 µg/m³2025-03-16: 8.8 µg/m³2025-03-17: 8.1 µg/m³2025-03-18: 7.1 µg/m³2025-03-19: 5.8 µg/m³2025-03-20: 6.6 µg/m³2025-03-21: 7.3 µg/m³2025-03-22: 7.6 µg/m³2025-03-23: 6.7 µg/m³2025-03-24: 6.8 µg/m³2025-03-25: 7.0 µg/m³2025-03-26: 7.5 µg/m³2025-03-27: 8.0 µg/m³2025-03-28: 9.9 µg/m³2025-03-29: 10.7 µg/m³2025-03-30: 8.3 µg/m³2025-03-31: 7.0 µg/m³2025-04-01: 9.1 µg/m³2025-04-02: 8.2 µg/m³2025-04-03: 7.0 µg/m³2025-04-04: 8.5 µg/m³2025-04-05: 4.3 µg/m³2025-04-06: 5.5 µg/m³2025-04-07: 5.1 µg/m³2025-04-08: 7.8 µg/m³2025-04-09: 9.1 µg/m³2025-04-10: 8.9 µg/m³2025-04-11: 10.5 µg/m³2025-04-12: 8.4 µg/m³2025-04-13: 8.9 µg/m³2025-04-14: 10.1 µg/m³2025-04-15: 10.6 µg/m³2025-04-16: 5.2 µg/m³2025-04-17: 11.7 µg/m³2025-04-18: 7.6 µg/m³2025-04-19: 10.2 µg/m³2025-04-20: 5.6 µg/m³2025-04-21: 8.2 µg/m³2025-04-22: 6.3 µg/m³2025-04-23: 6.9 µg/m³2025-04-24: 10.1 µg/m³2025-04-25: 7.2 µg/m³2025-04-26: 9.6 µg/m³2025-04-27: 7.3 µg/m³2025-04-28: 7.0 µg/m³2025-04-29: 10.2 µg/m³2025-04-30: 6.6 µg/m³2025-05-01: 9.2 µg/m³2025-05-02: 10.7 µg/m³2025-05-03: 10.5 µg/m³2025-05-04: 11.1 µg/m³2025-05-05: 9.7 µg/m³2025-05-06: 10.5 µg/m³2025-05-07: 10.3 µg/m³2025-05-08: 10.6 µg/m³2025-05-09: 9.6 µg/m³2025-05-10: 8.6 µg/m³2025-05-11: 8.9 µg/m³2025-05-12: 5.0 µg/m³2025-05-13: 6.9 µg/m³2025-05-14: 7.6 µg/m³2025-05-15: 5.1 µg/m³2025-05-16: 7.7 µg/m³2025-05-17: no data2025-05-18: 7.3 µg/m³2025-05-19: 13.2 µg/m³2025-05-20: 9.6 µg/m³2025-05-21: 12.4 µg/m³2025-05-22: 11.9 µg/m³2025-05-23: 11.3 µg/m³2025-05-24: 12.8 µg/m³2025-05-25: 7.9 µg/m³2025-05-26: 14.3 µg/m³2025-05-27: 8.8 µg/m³2025-05-28: 7.4 µg/m³2025-05-29: 9.4 µg/m³2025-05-30: 14.1 µg/m³2025-05-31: 9.7 µg/m³2025-06-01: 11.7 µg/m³2025-06-02: 12.7 µg/m³2025-06-03: 13.1 µg/m³2025-06-04: 7.0 µg/m³2025-06-05: 8.1 µg/m³2025-06-06: 10.6 µg/m³2025-06-07: 12.4 µg/m³2025-06-08: 12.5 µg/m³2025-06-09: 15.5 µg/m³2025-06-10: 10.2 µg/m³2025-06-11: 10.4 µg/m³2025-06-12: 7.2 µg/m³2025-06-13: 9.1 µg/m³2025-06-14: 8.8 µg/m³2025-06-15: 8.3 µg/m³2025-06-16: no data2025-06-17: 10.2 µg/m³2025-06-18: 10.0 µg/m³2025-06-19: 8.2 µg/m³2025-06-20: 9.2 µg/m³2025-06-21: 9.4 µg/m³2025-06-22: 13.5 µg/m³2025-06-23: 12.3 µg/m³2025-06-24: 7.0 µg/m³2025-06-25: 9.6 µg/m³2025-06-26: 8.0 µg/m³2025-06-27: no data2025-06-28: no data2025-06-29: 12.7 µg/m³2025-06-30: 12.9 µg/m³2025-07-01: 12.5 µg/m³2025-07-02: 12.0 µg/m³2025-07-03: 7.6 µg/m³2025-07-04: 8.1 µg/m³2025-07-05: 7.0 µg/m³2025-07-06: 11.6 µg/m³2025-07-07: 12.0 µg/m³2025-07-08: 12.3 µg/m³2025-07-09: 14.3 µg/m³2025-07-10: 13.3 µg/m³2025-07-11: 12.5 µg/m³2025-07-12: 9.1 µg/m³2025-07-13: 6.8 µg/m³2025-07-14: 10.9 µg/m³2025-07-15: 11.6 µg/m³2025-07-16: 14.3 µg/m³2025-07-17: 15.3 µg/m³2025-07-18: no data2025-07-19: no data2025-07-20: 15.6 µg/m³2025-07-21: 15.9 µg/m³2025-07-22: 15.8 µg/m³2025-07-23: 16.3 µg/m³2025-07-24: 17.9 µg/m³2025-07-25: 12.2 µg/m³2025-07-26: 12.7 µg/m³2025-07-27: 9.2 µg/m³2025-07-28: 7.4 µg/m³2025-07-29: 6.7 µg/m³2025-07-30: 12.1 µg/m³2025-07-31: 13.5 µg/m³2025-08-01: 16.8 µg/m³2025-08-02: 13.5 µg/m³2025-08-03: 8.8 µg/m³2025-08-04: 10.5 µg/m³2025-08-05: 14.4 µg/m³2025-08-06: 13.5 µg/m³2025-08-07: 14.9 µg/m³2025-08-08: 15.4 µg/m³2025-08-09: 13.1 µg/m³2025-08-10: 10.0 µg/m³2025-08-11: 11.8 µg/m³2025-08-12: 12.8 µg/m³2025-08-13: 15.6 µg/m³2025-08-14: 15.9 µg/m³2025-08-15: 16.0 µg/m³2025-08-16: 17.9 µg/m³2025-08-17: 19.3 µg/m³2025-08-18: 16.9 µg/m³2025-08-19: 14.7 µg/m³2025-08-20: 16.6 µg/m³2025-08-21: 17.0 µg/m³2025-08-22: 10.6 µg/m³2025-08-23: 8.9 µg/m³2025-08-24: 13.3 µg/m³2025-08-25: 11.5 µg/m³2025-08-26: 11.3 µg/m³2025-08-27: 14.0 µg/m³2025-08-28: 13.8 µg/m³2025-08-29: 11.6 µg/m³2025-08-30: 6.6 µg/m³2025-08-31: 5.8 µg/m³2025-09-01: 5.6 µg/m³2025-09-02: 6.7 µg/m³2025-09-03: 6.0 µg/m³2025-09-04: 7.7 µg/m³2025-09-05: 10.3 µg/m³2025-09-06: 12.5 µg/m³2025-09-07: 11.7 µg/m³2025-09-08: 12.5 µg/m³2025-09-09: 12.8 µg/m³2025-09-10: 20.9 µg/m³2025-09-11: 21.8 µg/m³2025-09-12: 28.6 µg/m³2025-09-13: 16.1 µg/m³2025-09-14: 13.9 µg/m³2025-09-15: 16.1 µg/m³2025-09-16: 14.2 µg/m³2025-09-17: 14.7 µg/m³2025-09-18: 13.3 µg/m³2025-09-19: 12.0 µg/m³2025-09-20: 10.9 µg/m³2025-09-21: 10.0 µg/m³2025-09-22: 13.8 µg/m³2025-09-23: 12.0 µg/m³2025-09-24: 8.2 µg/m³2025-09-25: 4.5 µg/m³2025-09-26: 5.3 µg/m³2025-09-27: 8.0 µg/m³2025-09-28: 12.1 µg/m³2025-09-29: 17.0 µg/m³2025-09-30: 27.8 µg/m³2025-10-01: 21.1 µg/m³2025-10-02: 20.0 µg/m³2025-10-03: 11.7 µg/m³2025-10-04: 9.3 µg/m³2025-10-05: 5.8 µg/m³2025-10-06: 10.6 µg/m³2025-10-07: 18.3 µg/m³2025-10-08: 15.3 µg/m³2025-10-09: 6.5 µg/m³2025-10-10: 8.4 µg/m³2025-10-11: 10.6 µg/m³2025-10-12: 10.8 µg/m³2025-10-13: 17.0 µg/m³2025-10-14: 12.5 µg/m³2025-10-15: 10.7 µg/m³2025-10-16: 11.4 µg/m³2025-10-17: 11.4 µg/m³2025-10-18: 13.3 µg/m³2025-10-19: 4.1 µg/m³2025-10-20: 6.4 µg/m³2025-10-21: 7.3 µg/m³2025-10-22: 8.4 µg/m³2025-10-23: 7.8 µg/m³2025-10-24: 8.1 µg/m³2025-10-25: 9.8 µg/m³2025-10-26: 5.3 µg/m³2025-10-27: 9.8 µg/m³2025-10-28: 13.8 µg/m³2025-10-29: 14.7 µg/m³2025-10-30: 13.1 µg/m³2025-10-31: 7.5 µg/m³2025-11-01: 8.6 µg/m³2025-11-02: 9.9 µg/m³2025-11-03: 5.6 µg/m³2025-11-04: 8.0 µg/m³2025-11-05: 6.7 µg/m³2025-11-06: 10.9 µg/m³2025-11-07: 8.5 µg/m³2025-11-08: 5.4 µg/m³2025-11-09: 7.0 µg/m³2025-11-10: 4.9 µg/m³2025-11-11: 7.0 µg/m³2025-11-12: 10.7 µg/m³2025-11-13: 15.7 µg/m³2025-11-14: 13.4 µg/m³2025-11-15: no data2025-11-16: 6.0 µg/m³2025-11-17: 5.8 µg/m³2025-11-18: 6.8 µg/m³2025-11-19: 5.9 µg/m³2025-11-20: 10.7 µg/m³2025-11-21: 13.1 µg/m³2025-11-22: 13.2 µg/m³2025-11-23: 9.2 µg/m³2025-11-24: 12.7 µg/m³2025-11-25: 8.6 µg/m³2025-11-26: 7.0 µg/m³2025-11-27: 8.9 µg/m³2025-11-28: 8.0 µg/m³2025-11-29: 7.0 µg/m³2025-11-30: 8.3 µg/m³2025-12-01: 8.0 µg/m³2025-12-02: 7.0 µg/m³2025-12-03: 6.3 µg/m³2025-12-04: 6.4 µg/m³2025-12-05: 6.2 µg/m³2025-12-06: 7.7 µg/m³2025-12-07: 6.6 µg/m³2025-12-08: 6.3 µg/m³2025-12-09: 5.2 µg/m³2025-12-10: no data2025-12-11: no data2025-12-12: 8.1 µg/m³2025-12-13: 4.1 µg/m³2025-12-14: 3.4 µg/m³2025-12-15: 4.6 µg/m³2025-12-16: 6.0 µg/m³2025-12-17: 1.8 µg/m³2025-12-18: 1.8 µg/m³2025-12-19: 2.3 µg/m³2025-12-20: 5.0 µg/m³2025-12-21: 2.5 µg/m³2025-12-22: 1.9 µg/m³2025-12-23: 5.4 µg/m³2025-12-24: no data2025-12-25: no data2025-12-26: no data2025-12-27: no data2025-12-28: no data2025-12-29: 8.8 µg/m³2025-12-30: 8.2 µg/m³2025-12-31: 6.3 µg/m³
Its last 12 measured months, one row per month, each square a day's mean PM2.5. Blank: no measured value that day.

Its highest places on the daily boards

DayRankµg/m³
3 Oct 2024#9of 1,991 51.9
2 Sep 2024#9of 2,044 55.3
4 Sep 2024#12of 2,058 66.8
3 Sep 2024#13of 1,991 64.1
5 Sep 2024#16of 2,003 61.1
28 Sep 2024#20of 2,000 34.6
20 Sep 2024#22of 2,018 35.4
15 Sep 2024#22of 1,984 40.5
21 Sep 2024#24of 2,041 33.0
16 Sep 2024#25of 1,985 37.4

Its measured months since 2023, with the worst months and days.

Use this history

SmogRank, measured PM2.5 daily means, Congonhas, Brazil, 1 Jan 2023 to 31 Dec 2025. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/br/congonhas (accessed 12 Oct 2026).

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Now: model estimate

7-day average, estimated≈ 3µg/m³
Estimate, not measuredLikely good

Likely between 2 and 4 µg/m³ (11–22 US AQI): the model's 7-day average to 10 Oct 2026, about 0.2× the WHO 24-hour guideline.

30-day average, estimated: ≈ 3 µg/m³

Model estimate from the Copernicus Atmosphere Monitoring Service (CAMS), scaled by 0.46 to match 7 measured cities within 300 km over the last week. Adjusted this way, a single day lands within ×1.5 of what a monitor would read about two times in three: a guide, not a measurement. Not ranked on SmogRank's boards.

Last 30 days, estimated

152026-09-11: ≈ 4 µg/m³ (estimate)11 Sep2026-09-12: ≈ 2 µg/m³ (estimate)2026-09-13: ≈ 4 µg/m³ (estimate)2026-09-14: ≈ 2 µg/m³ (estimate)2026-09-15: ≈ 3 µg/m³ (estimate)2026-09-16: ≈ 4 µg/m³ (estimate)2026-09-17: ≈ 1 µg/m³ (estimate)2026-09-18: ≈ 2 µg/m³ (estimate)18 Sep2026-09-19: ≈ 2 µg/m³ (estimate)2026-09-20: ≈ 3 µg/m³ (estimate)2026-09-21: ≈ 3 µg/m³ (estimate)2026-09-22: ≈ 3 µg/m³ (estimate)2026-09-23: ≈ 3 µg/m³ (estimate)2026-09-24: ≈ 1 µg/m³ (estimate)2026-09-25: ≈ 4 µg/m³ (estimate)25 Sep2026-09-26: ≈ 4 µg/m³ (estimate)2026-09-27: ≈ 4 µg/m³ (estimate)2026-09-28: ≈ 2 µg/m³ (estimate)2026-09-29: ≈ 2 µg/m³ (estimate)2026-09-30: ≈ 4 µg/m³ (estimate)2026-10-01: ≈ 5 µg/m³ (estimate)2026-10-02: ≈ 3 µg/m³ (estimate)2 Oct2026-10-03: ≈ 1 µg/m³ (estimate)2026-10-04: ≈ 1 µg/m³ (estimate)2026-10-05: ≈ 3 µg/m³ (estimate)2026-10-06: ≈ 3 µg/m³ (estimate)2026-10-07: ≈ 3 µg/m³ (estimate)2026-10-08: ≈ 4 µg/m³ (estimate)2026-10-09: ≈ 4 µg/m³ (estimate)9 Oct2026-10-10: ≈ 2 µg/m³ (estimate)
Daily means, UTC days. Dashed line: WHO 24-hour guideline (15 µg/m³).

Measured cities nearby

CityDistance7-day average
Duque de Caxias260 km11.1 µg/m³
Nilópolis260 km20.1 µg/m³
Itaguaí261 km11.3 µg/m³
Acari263 km9.5 µg/m³
Rio de Janeiro276 km8.2 µg/m³
Barra da Tijuca282 km9.9 µg/m³

Estimates contain modified Copernicus Atmosphere Monitoring Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. How estimates are made.

Use this page

SmogRank, estimated PM2.5 daily means (CAMS model estimate, not measured), Congonhas, Brazil, 11 Sep 2026 – 10 Oct 2026, smogrank.com/br/congonhas (accessed 12 Oct 2026). Contains modified Copernicus Atmosphere Monitoring Service information 2026.

Download chart (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.