SmogRank / Episodes / Brazil
Southern Brazil, 7 to 17 September 2024
For 11 days, from 7 to 17 September 2024, 31 cities in Brazil had PM2.5 at least twice their usual for the time of year. The worst reading was Ribeirão Preto, São Paulo, Brazil: 93.1 µg/m³ on 9 September, about 5.0× its usual 18.5. Ended 17 September.
Likely smoke from fires Fires were detected within 300 km of the city on 72% of the counted city-days. Satellites see crop, field and forest fires alike, so this doesn't say which burned.
Cities reached 31 in 1 country
Days 11 7 to 17 September 2024
Worst day 13 September 23 cities counted
Furthest above usual 6.6× Taubaté
Day by day
Play 13 September 23 cities at twice their usual or more
Barra Longa Conceição do Mato Dentro Ipatinga Itabira Timóteo Tubarão Nova União Congonhas Araucária Duque de Caxias Santos Ibirité Coronel Fabriciano São José do Rio Preto Bauru Belo Horizonte Presidente Prudente São Paulo Limeira Rio Claro Curitiba Rio de Janeiro Piracicaba Ferraz de Vasconcelos Ribeirão Preto Guaratinguetá Campinas São José dos Campos Paulínia Jundiaí Santo André Itaquaquecetuba Betim Taubaté On the map: 2,855 fire detections.
4 Sep 7 10 13 16 19 20 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking. Fires, seen Heat NASA satellites detected that day; bigger and glowing means more detections in the area. Farm burning and other fires count too, not only wildfires.Under the cities, for each UTC day: fires NASA satellites detected, smoke NOAA analysts traced and volcanic ash warnings for aircraft. They show what was in the air, not that it caused the readings. Mapped for 15 of the 17 days shown.
Fires: NASA FIRMS (VIIRS). Traced smoke: NOAA Hazard Mapping System. Volcanic ash: aviation ash warnings (SIGMETs) via NOAA's Aviation Weather Center.
How it spread
São José do Rio Pre… São José do Rio Preto, 4 September: 67.1 µg/m³ São José do Rio Preto, 5 September: 63.0 µg/m³ São José do Rio Preto, 6 September: 54.3 µg/m³ São José do Rio Preto, 7 September: 58.7 µg/m³, 2.9× its usual 20.0 São José do Rio Preto, 8 September: 63.5 µg/m³, 3.2× its usual 20.0 São José do Rio Preto, 9 September: 78.1 µg/m³, 3.9× its usual 20.0 São José do Rio Preto, 10 September: 66.8 µg/m³, 3.3× its usual 20.0 São José do Rio Preto, 11 September: 48.9 µg/m³, 2.4× its usual 20.1 São José do Rio Preto, 12 September: 39.8 µg/m³ São José do Rio Preto, 13 September: 46.4 µg/m³, 2.3× its usual 20.0 São José do Rio Preto, 14 September: 43.7 µg/m³, 2.2× its usual 19.7 São José do Rio Preto, 15 September: 55.1 µg/m³ São José do Rio Preto, 16 September: 28.5 µg/m³ São José do Rio Preto, 17 September: 14.4 µg/m³ São José do Rio Preto, 18 September: 25.7 µg/m³ São José do Rio Preto, 19 September: 35.0 µg/m³ São José do Rio Preto, 20 September: 52.3 µg/m³ Ribeirão Preto Ribeirão Preto, 4 September: 95.5 µg/m³ Ribeirão Preto, 5 September: 79.5 µg/m³ Ribeirão Preto, 6 September: 62.4 µg/m³ Ribeirão Preto, 7 September: 53.3 µg/m³, 2.9× its usual 18.5 Ribeirão Preto, 8 September: 80.2 µg/m³, 4.3× its usual 18.5 Ribeirão Preto, 9 September: 93.1 µg/m³, 5.0× its usual 18.5 Ribeirão Preto, 10 September: 61.0 µg/m³, 3.3× its usual 18.5 Ribeirão Preto, 11 September: 49.8 µg/m³, 2.7× its usual 18.4 Ribeirão Preto, 12 September: 60.8 µg/m³, 3.3× its usual 18.4 Ribeirão Preto, 13 September: 73.7 µg/m³, 4.1× its usual 18.1 Ribeirão Preto, 14 September: 61.5 µg/m³, 3.5× its usual 17.7 Ribeirão Preto, 15 September: 59.1 µg/m³ Ribeirão Preto, 16 September: 42.1 µg/m³ Ribeirão Preto, 17 September: 18.7 µg/m³ Ribeirão Preto, 18 September: 36.4 µg/m³ Ribeirão Preto, 19 September: 59.0 µg/m³ Ribeirão Preto, 20 September: 54.9 µg/m³ Rio Claro Rio Claro, 4 September: 64.5 µg/m³ Rio Claro, 5 September: 68.7 µg/m³ Rio Claro, 6 September: 21.1 µg/m³ Rio Claro, 7 September: 46.8 µg/m³, 2.4× its usual 19.3 Rio Claro, 8 September: 70.5 µg/m³, 3.7× its usual 18.9 Rio Claro, 9 September: 89.2 µg/m³, 4.7× its usual 18.9 Rio Claro, 10 September: 81.0 µg/m³, 4.2× its usual 19.1 Rio Claro, 11 September: 52.5 µg/m³, 2.7× its usual 19.1 Rio Claro, 12 September: 51.8 µg/m³, 2.7× its usual 18.9 Rio Claro, 13 September: 50.3 µg/m³, 2.7× its usual 18.4 Rio Claro, 14 September: 42.4 µg/m³, 2.3× its usual 18.1 Rio Claro, 15 September: 38.5 µg/m³ Rio Claro, 16 September: 8.8 µg/m³ Rio Claro, 17 September: 9.0 µg/m³ Rio Claro, 18 September: 16.0 µg/m³ Rio Claro, 19 September: 28.0 µg/m³ Rio Claro, 20 September: 31.4 µg/m³ Paulínia Paulínia, 4 September: 45.1 µg/m³ Paulínia, 5 September: 58.7 µg/m³ Paulínia, 6 September: 19.1 µg/m³ Paulínia, 7 September: 44.5 µg/m³, 3.1× its usual 14.4 Paulínia, 8 September: 67.1 µg/m³, 4.7× its usual 14.4 Paulínia, 9 September: 80.5 µg/m³, 5.6× its usual 14.4 Paulínia, 10 September: 63.3 µg/m³, 4.4× its usual 14.4 Paulínia, 11 September: 43.8 µg/m³, 3.1× its usual 14.3 Paulínia, 12 September: 36.3 µg/m³, 2.5× its usual 14.3 Paulínia, 13 September: 41.2 µg/m³, 2.9× its usual 14.3 Paulínia, 14 September: 41.0 µg/m³, 2.9× its usual 14.3 Paulínia, 15 September: 28.5 µg/m³ Paulínia, 16 September: 9.5 µg/m³ Paulínia, 17 September: 8.1 µg/m³ Paulínia, 18 September: 13.0 µg/m³ Paulínia, 19 September: 28.0 µg/m³ Paulínia, 20 September: 23.9 µg/m³ Campinas Campinas, 4 September: 49.8 µg/m³ Campinas, 5 September: 58.9 µg/m³ Campinas, 6 September: 17.0 µg/m³ Campinas, 7 September: 44.5 µg/m³, 3.0× its usual 15.0 Campinas, 8 September: 67.8 µg/m³, 4.5× its usual 15.0 Campinas, 9 September: 80.1 µg/m³, 5.2× its usual 15.3 Campinas, 10 September: 69.7 µg/m³, 4.6× its usual 15.3 Campinas, 11 September: 59.5 µg/m³, 3.9× its usual 15.1 Campinas, 12 September: 52.1 µg/m³, 3.6× its usual 14.6 Campinas, 13 September: 48.7 µg/m³, 3.4× its usual 14.2 Campinas, 14 September: 39.4 µg/m³, 2.8× its usual 14.2 Campinas, 15 September: 28.6 µg/m³ Campinas, 16 September: 8.2 µg/m³ Campinas, 17 September: 7.3 µg/m³ Campinas, 18 September: 15.3 µg/m³ Campinas, 19 September: 28.8 µg/m³ Campinas, 20 September: 26.0 µg/m³ São Paulo São Paulo, 4 September: 52.0 µg/m³ São Paulo, 5 September: 41.2 µg/m³ São Paulo, 6 September: 9.9 µg/m³ São Paulo, 7 September: 44.3 µg/m³, 2.9× its usual 15.4 São Paulo, 8 September: 66.5 µg/m³, 4.4× its usual 15.1 São Paulo, 9 September: 68.1 µg/m³, 4.5× its usual 15.1 São Paulo, 10 September: 65.3 µg/m³, 4.3× its usual 15.1 São Paulo, 11 September: 68.0 µg/m³, 4.5× its usual 15.1 São Paulo, 12 September: 59.3 µg/m³, 4.0× its usual 15.0 São Paulo, 13 September: 63.9 µg/m³, 4.3× its usual 14.9 São Paulo, 14 September: 46.7 µg/m³, 3.3× its usual 14.3 São Paulo, 15 September: 13.6 µg/m³ São Paulo, 16 September: 4.3 µg/m³ São Paulo, 17 September: 5.7 µg/m³ São Paulo, 18 September: 12.4 µg/m³ São Paulo, 19 September: 21.0 µg/m³ São Paulo, 20 September: 25.9 µg/m³ Santo André Santo André, 4 September: no reading Santo André, 5 September: no reading Santo André, 6 September: 2.8 µg/m³ Santo André, 7 September: 43.8 µg/m³, 3.0× its usual 14.5 Santo André, 8 September: 62.4 µg/m³, 4.7× its usual 13.3 Santo André, 9 September: 70.6 µg/m³, 5.3× its usual 13.4 Santo André, 10 September: 76.1 µg/m³, 5.8× its usual 13.2 Santo André, 11 September: 74.0 µg/m³, 5.6× its usual 13.2 Santo André, 12 September: 58.6 µg/m³, 4.5× its usual 13.0 Santo André, 13 September: 66.8 µg/m³, 5.2× its usual 12.8 Santo André, 14 September: 44.5 µg/m³, 3.7× its usual 12.1 Santo André, 15 September: 11.9 µg/m³ Santo André, 16 September: 2.5 µg/m³ Santo André, 17 September: 3.6 µg/m³ Santo André, 18 September: 7.1 µg/m³ Santo André, 19 September: 20.2 µg/m³ Santo André, 20 September: 23.3 µg/m³ Jundiaí Jundiaí, 4 September: 60.1 µg/m³ Jundiaí, 5 September: 51.4 µg/m³ Jundiaí, 6 September: 13.3 µg/m³ Jundiaí, 7 September: 41.8 µg/m³, 2.8× its usual 14.7 Jundiaí, 8 September: 81.7 µg/m³, 5.6× its usual 14.7 Jundiaí, 9 September: 83.4 µg/m³, 5.7× its usual 14.7 Jundiaí, 10 September: 69.5 µg/m³, 4.7× its usual 14.7 Jundiaí, 11 September: 62.2 µg/m³, 4.4× its usual 14.2 Jundiaí, 12 September: 51.2 µg/m³, 3.6× its usual 14.1 Jundiaí, 13 September: 54.2 µg/m³, 3.9× its usual 14.0 Jundiaí, 14 September: 56.8 µg/m³, 4.2× its usual 13.5 Jundiaí, 15 September: 22.5 µg/m³ Jundiaí, 16 September: 2.8 µg/m³ Jundiaí, 17 September: 5.5 µg/m³ Jundiaí, 18 September: 15.0 µg/m³ Jundiaí, 19 September: 20.4 µg/m³ Jundiaí, 20 September: 22.7 µg/m³ Ferraz de Vasconcel… Ferraz de Vasconcelos, 4 September: 57.2 µg/m³ Ferraz de Vasconcelos, 5 September: 38.8 µg/m³ Ferraz de Vasconcelos, 6 September: 7.7 µg/m³ Ferraz de Vasconcelos, 7 September: 41.3 µg/m³, 2.6× its usual 16.0 Ferraz de Vasconcelos, 8 September: 63.6 µg/m³, 4.1× its usual 15.4 Ferraz de Vasconcelos, 9 September: 73.0 µg/m³, 4.6× its usual 15.8 Ferraz de Vasconcelos, 10 September: 70.0 µg/m³, 4.5× its usual 15.4 Ferraz de Vasconcelos, 11 September: 73.2 µg/m³, 5.0× its usual 14.5 Ferraz de Vasconcelos, 12 September: 57.8 µg/m³, 4.1× its usual 14.2 Ferraz de Vasconcelos, 13 September: 55.3 µg/m³, 4.0× its usual 13.8 Ferraz de Vasconcelos, 14 September: 42.0 µg/m³, 3.2× its usual 13.1 Ferraz de Vasconcelos, 15 September: 12.8 µg/m³ Ferraz de Vasconcelos, 16 September: 6.0 µg/m³ Ferraz de Vasconcelos, 17 September: 4.2 µg/m³ Ferraz de Vasconcelos, 18 September: 10.8 µg/m³ Ferraz de Vasconcelos, 19 September: 20.7 µg/m³ Ferraz de Vasconcelos, 20 September: 22.0 µg/m³ Taubaté Taubaté, 4 September: 47.0 µg/m³ Taubaté, 5 September: 48.4 µg/m³ Taubaté, 6 September: 15.5 µg/m³ Taubaté, 7 September: 40.3 µg/m³, 3.5× its usual 11.4 Taubaté, 8 September: 75.5 µg/m³, 6.6× its usual 11.4 Taubaté, 9 September: 48.3 µg/m³, 4.3× its usual 11.2 Taubaté, 10 September: 47.6 µg/m³, 4.3× its usual 11.0 Taubaté, 11 September: 40.9 µg/m³, 3.8× its usual 10.9 Taubaté, 12 September: 32.8 µg/m³, 3.1× its usual 10.6 Taubaté, 13 September: 31.7 µg/m³, 3.0× its usual 10.5 Taubaté, 14 September: 42.8 µg/m³, 4.1× its usual 10.4 Taubaté, 15 September: 23.2 µg/m³ Taubaté, 16 September: 15.7 µg/m³ Taubaté, 17 September: 3.9 µg/m³ Taubaté, 18 September: 9.3 µg/m³ Taubaté, 19 September: 14.5 µg/m³ Taubaté, 20 September: 25.0 µg/m³ Guaratinguetá Guaratinguetá, 4 September: 44.2 µg/m³ Guaratinguetá, 5 September: 50.4 µg/m³ Guaratinguetá, 6 September: 21.2 µg/m³ Guaratinguetá, 7 September: 36.1 µg/m³, 3.0× its usual 12.0 Guaratinguetá, 8 September: 44.8 µg/m³, 3.7× its usual 12.0 Guaratinguetá, 9 September: 49.3 µg/m³, 4.1× its usual 12.1 Guaratinguetá, 10 September: 45.7 µg/m³, 3.7× its usual 12.4 Guaratinguetá, 11 September: 39.1 µg/m³, 3.2× its usual 12.3 Guaratinguetá, 12 September: 33.4 µg/m³, 2.8× its usual 12.0 Guaratinguetá, 13 September: 36.2 µg/m³, 3.2× its usual 11.4 Guaratinguetá, 14 September: 55.4 µg/m³, 5.2× its usual 10.7 Guaratinguetá, 15 September: no reading Guaratinguetá, 16 September: no reading Guaratinguetá, 17 September: 3.8 µg/m³ Guaratinguetá, 18 September: 7.3 µg/m³ Guaratinguetá, 19 September: 12.7 µg/m³ Guaratinguetá, 20 September: 22.5 µg/m³ Piracicaba Piracicaba, 4 September: 47.2 µg/m³ Piracicaba, 5 September: 50.8 µg/m³ Piracicaba, 6 September: 15.3 µg/m³ Piracicaba, 7 September: 35.3 µg/m³, 2.5× its usual 14.3 Piracicaba, 8 September: 61.9 µg/m³, 4.4× its usual 14.1 Piracicaba, 9 September: 70.7 µg/m³, 5.0× its usual 14.1 Piracicaba, 10 September: 59.0 µg/m³, 4.2× its usual 14.1 Piracicaba, 11 September: 50.9 µg/m³, 3.6× its usual 14.0 Piracicaba, 12 September: 34.3 µg/m³, 2.4× its usual 14.0 Piracicaba, 13 September: 41.2 µg/m³, 3.0× its usual 13.9 Piracicaba, 14 September: 36.8 µg/m³, 2.7× its usual 13.8 Piracicaba, 15 September: 25.8 µg/m³ Piracicaba, 16 September: 4.9 µg/m³ Piracicaba, 17 September: 6.4 µg/m³ Piracicaba, 18 September: 13.3 µg/m³ Piracicaba, 19 September: 21.6 µg/m³ Piracicaba, 20 September: 25.0 µg/m³ Itaquaquecetuba Itaquaquecetuba, 4 September: 49.2 µg/m³ Itaquaquecetuba, 5 September: 41.1 µg/m³ Itaquaquecetuba, 6 September: 9.1 µg/m³ Itaquaquecetuba, 7 September: 35.0 µg/m³, 2.4× its usual 14.6 Itaquaquecetuba, 8 September: 57.1 µg/m³, 3.9× its usual 14.6 Itaquaquecetuba, 9 September: 68.2 µg/m³, 4.6× its usual 14.8 Itaquaquecetuba, 10 September: 89.6 µg/m³, 6.1× its usual 14.8 Itaquaquecetuba, 11 September: 64.7 µg/m³, 4.5× its usual 14.4 Itaquaquecetuba, 12 September: 70.1 µg/m³, 5.2× its usual 13.6 Itaquaquecetuba, 13 September: 63.4 µg/m³, 4.7× its usual 13.6 Itaquaquecetuba, 14 September: 47.3 µg/m³, 3.7× its usual 12.9 Itaquaquecetuba, 15 September: 14.7 µg/m³ Itaquaquecetuba, 16 September: 5.8 µg/m³ Itaquaquecetuba, 17 September: 4.3 µg/m³ Itaquaquecetuba, 18 September: 12.6 µg/m³ Itaquaquecetuba, 19 September: 20.2 µg/m³ Itaquaquecetuba, 20 September: 22.5 µg/m³ São José dos Campos São José dos Campos, 4 September: 42.4 µg/m³ São José dos Campos, 5 September: 38.9 µg/m³ São José dos Campos, 6 September: 10.5 µg/m³ São José dos Campos, 7 September: 34.3 µg/m³, 3.1× its usual 11.0 São José dos Campos, 8 September: 58.4 µg/m³, 5.4× its usual 10.8 São José dos Campos, 9 September: 48.6 µg/m³, 4.5× its usual 10.9 São José dos Campos, 10 September: 51.4 µg/m³, 4.7× its usual 10.9 São José dos Campos, 11 September: 44.1 µg/m³, 4.1× its usual 10.8 São José dos Campos, 12 September: 33.9 µg/m³, 3.2× its usual 10.7 São José dos Campos, 13 September: 34.4 µg/m³, 3.2× its usual 10.6 São José dos Campos, 14 September: 38.0 µg/m³, 3.8× its usual 10.1 São José dos Campos, 15 September: 17.3 µg/m³ São José dos Campos, 16 September: 8.1 µg/m³ São José dos Campos, 17 September: 3.8 µg/m³ São José dos Campos, 18 September: 7.0 µg/m³ São José dos Campos, 19 September: 13.9 µg/m³ São José dos Campos, 20 September: 21.5 µg/m³ Limeira Limeira, 4 September: no reading Limeira, 5 September: no reading Limeira, 6 September: no reading Limeira, 7 September: no reading Limeira, 8 September: 58.7 µg/m³, 3.7× its usual 16.0 Limeira, 9 September: 74.5 µg/m³, 4.5× its usual 16.7 Limeira, 10 September: 63.0 µg/m³, 3.8× its usual 16.7 Limeira, 11 September: 41.7 µg/m³, 2.5× its usual 16.4 Limeira, 12 September: 40.5 µg/m³, 2.4× its usual 16.7 Limeira, 13 September: 45.0 µg/m³, 2.8× its usual 16.0 Limeira, 14 September: 31.9 µg/m³, 2.0× its usual 15.7 Limeira, 15 September: 29.3 µg/m³ Limeira, 16 September: 8.7 µg/m³ Limeira, 17 September: 9.0 µg/m³ Limeira, 18 September: 14.0 µg/m³ Limeira, 19 September: 26.2 µg/m³ Limeira, 20 September: 27.6 µg/m³ Bauru Bauru, 4 September: no reading Bauru, 5 September: no reading Bauru, 6 September: no reading Bauru, 7 September: no reading Bauru, 8 September: no reading Bauru, 9 September: no reading Bauru, 10 September: no reading Bauru, 11 September: 55.9 µg/m³, 4.2× its usual 13.4 Bauru, 12 September: 55.3 µg/m³, 4.1× its usual 13.4 Bauru, 13 September: 46.3 µg/m³, 3.5× its usual 13.2 Bauru, 14 September: 40.1 µg/m³, 3.1× its usual 13.0 Bauru, 15 September: 21.3 µg/m³ Bauru, 16 September: 6.8 µg/m³ Bauru, 17 September: 7.2 µg/m³ Bauru, 18 September: 12.3 µg/m³ Bauru, 19 September: 20.7 µg/m³ Bauru, 20 September: 28.4 µg/m³ Santos Santos, 4 September: 19.2 µg/m³ Santos, 5 September: 15.6 µg/m³ Santos, 6 September: 2.9 µg/m³ Santos, 7 September: 6.8 µg/m³ Santos, 8 September: 15.2 µg/m³ Santos, 9 September: 17.0 µg/m³ Santos, 10 September: 18.4 µg/m³ Santos, 11 September: 39.9 µg/m³, 3.6× its usual 11.0 Santos, 12 September: 40.1 µg/m³, 3.7× its usual 10.7 Santos, 13 September: 26.0 µg/m³, 2.5× its usual 10.6 Santos, 14 September: 28.3 µg/m³, 2.7× its usual 10.5 Santos, 15 September: 10.3 µg/m³ Santos, 16 September: 2.8 µg/m³ Santos, 17 September: 5.8 µg/m³ Santos, 18 September: 6.8 µg/m³ Santos, 19 September: 17.1 µg/m³ Santos, 20 September: 17.1 µg/m³ Presidente Prudente Presidente Prudente, 4 September: no reading Presidente Prudente, 5 September: no reading Presidente Prudente, 6 September: no reading Presidente Prudente, 7 September: no reading Presidente Prudente, 8 September: no reading Presidente Prudente, 9 September: no reading Presidente Prudente, 10 September: no reading Presidente Prudente, 11 September: 37.6 µg/m³, 3.7× its usual 10.1 Presidente Prudente, 12 September: 38.4 µg/m³, 3.8× its usual 10.0 Presidente Prudente, 13 September: 39.0 µg/m³, 3.9× its usual 9.9 Presidente Prudente, 14 September: 44.4 µg/m³, 4.5× its usual 9.9 Presidente Prudente, 15 September: 20.1 µg/m³ Presidente Prudente, 16 September: 13.9 µg/m³ Presidente Prudente, 17 September: 7.3 µg/m³ Presidente Prudente, 18 September: 12.0 µg/m³ Presidente Prudente, 19 September: 20.0 µg/m³ Presidente Prudente, 20 September: 24.1 µg/m³ Curitiba Curitiba, 4 September: 46.8 µg/m³ Curitiba, 5 September: 25.2 µg/m³ Curitiba, 6 September: no reading Curitiba, 7 September: no reading Curitiba, 8 September: no reading Curitiba, 9 September: no reading Curitiba, 10 September: no reading Curitiba, 11 September: no reading Curitiba, 12 September: 54.1 µg/m³, 4.9× its usual 11.1 Curitiba, 13 September: 31.5 µg/m³, 2.9× its usual 10.9 Curitiba, 14 September: 35.5 µg/m³, 3.5× its usual 10.1 Curitiba, 15 September: 4.0 µg/m³ Curitiba, 16 September: 3.2 µg/m³ Curitiba, 17 September: no reading Curitiba, 18 September: 5.0 µg/m³ Curitiba, 19 September: 6.8 µg/m³ Curitiba, 20 September: 11.7 µg/m³ Araucária Araucária, 4 September: 52.1 µg/m³ Araucária, 5 September: 25.9 µg/m³ Araucária, 6 September: no reading Araucária, 7 September: no reading Araucária, 8 September: no reading Araucária, 9 September: no reading Araucária, 10 September: no reading Araucária, 11 September: no reading Araucária, 12 September: 49.3 µg/m³, 3.4× its usual 14.3 Araucária, 13 September: 36.8 µg/m³, 2.6× its usual 14.3 Araucária, 14 September: 34.2 µg/m³, 2.5× its usual 13.7 Araucária, 15 September: 9.1 µg/m³ Araucária, 16 September: 13.6 µg/m³ Araucária, 17 September: 15.8 µg/m³ Araucária, 18 September: 11.5 µg/m³ Araucária, 19 September: 10.3 µg/m³ Araucária, 20 September: 12.1 µg/m³ Congonhas Congonhas, 4 September: 66.8 µg/m³ Congonhas, 5 September: 61.1 µg/m³ Congonhas, 6 September: no reading Congonhas, 7 September: no reading Congonhas, 8 September: no reading Congonhas, 9 September: no reading Congonhas, 10 September: no reading Congonhas, 11 September: no reading Congonhas, 12 September: 37.9 µg/m³, 2.8× its usual 13.3 Congonhas, 13 September: 32.7 µg/m³, 2.5× its usual 13.3 Congonhas, 14 September: 32.6 µg/m³, 2.5× its usual 13.0 Congonhas, 15 September: 40.5 µg/m³, 3.2× its usual 12.6 Congonhas, 16 September: 37.4 µg/m³, 2.9× its usual 12.7 Congonhas, 17 September: 19.9 µg/m³ Congonhas, 18 September: 15.4 µg/m³ Congonhas, 19 September: 22.3 µg/m³ Congonhas, 20 September: 35.4 µg/m³ Rio de Janeiro Rio de Janeiro, 4 September: 21.2 µg/m³ Rio de Janeiro, 5 September: 28.6 µg/m³ Rio de Janeiro, 6 September: no reading Rio de Janeiro, 7 September: no reading Rio de Janeiro, 8 September: no reading Rio de Janeiro, 9 September: no reading Rio de Janeiro, 10 September: no reading Rio de Janeiro, 11 September: no reading Rio de Janeiro, 12 September: 36.9 µg/m³, 4.4× its usual 8.3 Rio de Janeiro, 13 September: 40.1 µg/m³, 5.0× its usual 8.1 Rio de Janeiro, 14 September: 36.8 µg/m³, 4.7× its usual 7.8 Rio de Janeiro, 15 September: 35.3 µg/m³, 4.7× its usual 7.5 Rio de Janeiro, 16 September: 26.8 µg/m³, 3.6× its usual 7.5 Rio de Janeiro, 17 September: 3.8 µg/m³ Rio de Janeiro, 18 September: 6.7 µg/m³ Rio de Janeiro, 19 September: 10.5 µg/m³ Rio de Janeiro, 20 September: 14.9 µg/m³ Tubarão Tubarão, 4 September: no reading Tubarão, 5 September: no reading Tubarão, 6 September: no reading Tubarão, 7 September: no reading Tubarão, 8 September: no reading Tubarão, 9 September: no reading Tubarão, 10 September: no reading Tubarão, 11 September: no reading Tubarão, 12 September: no reading Tubarão, 13 September: 33.3 µg/m³, 2.8× its usual 11.9 Tubarão, 14 September: 27.8 µg/m³, 2.4× its usual 11.8 Tubarão, 15 September: 10.5 µg/m³ Tubarão, 16 September: 13.2 µg/m³ Tubarão, 17 September: 12.4 µg/m³ Tubarão, 18 September: 7.8 µg/m³ Tubarão, 19 September: 10.7 µg/m³ Tubarão, 20 September: 9.3 µg/m³ Betim Betim, 4 September: 98.3 µg/m³ Betim, 5 September: 64.0 µg/m³ Betim, 6 September: no reading Betim, 7 September: no reading Betim, 8 September: no reading Betim, 9 September: no reading Betim, 10 September: no reading Betim, 11 September: no reading Betim, 12 September: 24.7 µg/m³ Betim, 13 September: 8.5 µg/m³ Betim, 14 September: 17.5 µg/m³ Betim, 15 September: 84.2 µg/m³, 6.2× its usual 13.5 Betim, 16 September: 33.4 µg/m³, 2.5× its usual 13.5 Betim, 17 September: 35.4 µg/m³, 2.6× its usual 13.5 Betim, 18 September: 13.1 µg/m³ Betim, 19 September: 18.8 µg/m³ Betim, 20 September: 19.2 µg/m³ Belo Horizonte Belo Horizonte, 4 September: 83.6 µg/m³ Belo Horizonte, 5 September: 50.7 µg/m³ Belo Horizonte, 6 September: no reading Belo Horizonte, 7 September: no reading Belo Horizonte, 8 September: no reading Belo Horizonte, 9 September: no reading Belo Horizonte, 10 September: no reading Belo Horizonte, 11 September: no reading Belo Horizonte, 12 September: 19.0 µg/m³ Belo Horizonte, 13 September: 18.7 µg/m³ Belo Horizonte, 14 September: 25.9 µg/m³ Belo Horizonte, 15 September: 58.3 µg/m³, 4.3× its usual 13.5 Belo Horizonte, 16 September: 39.8 µg/m³, 2.9× its usual 13.5 Belo Horizonte, 17 September: 43.0 µg/m³, 3.2× its usual 13.5 Belo Horizonte, 18 September: 18.3 µg/m³ Belo Horizonte, 19 September: 23.7 µg/m³ Belo Horizonte, 20 September: 23.1 µg/m³ Nova União Nova União, 4 September: 73.8 µg/m³ Nova União, 5 September: 51.1 µg/m³ Nova União, 6 September: no reading Nova União, 7 September: no reading Nova União, 8 September: no reading Nova União, 9 September: no reading Nova União, 10 September: no reading Nova União, 11 September: no reading Nova União, 12 September: 21.6 µg/m³ Nova União, 13 September: 19.8 µg/m³ Nova União, 14 September: 24.1 µg/m³ Nova União, 15 September: 48.5 µg/m³, 2.8× its usual 17.1 Nova União, 16 September: 27.5 µg/m³ Nova União, 17 September: 29.4 µg/m³ Nova União, 18 September: 18.7 µg/m³ Nova União, 19 September: 18.4 µg/m³ Nova União, 20 September: 26.0 µg/m³ Ibirité Ibirité, 4 September: 77.0 µg/m³ Ibirité, 5 September: no reading Ibirité, 6 September: no reading Ibirité, 7 September: no reading Ibirité, 8 September: no reading Ibirité, 9 September: no reading Ibirité, 10 September: no reading Ibirité, 11 September: no reading Ibirité, 12 September: 15.9 µg/m³ Ibirité, 13 September: 14.5 µg/m³ Ibirité, 14 September: 12.8 µg/m³ Ibirité, 15 September: 45.6 µg/m³, 3.9× its usual 11.8 Ibirité, 16 September: 29.9 µg/m³, 2.5× its usual 11.9 Ibirité, 17 September: 37.3 µg/m³, 3.2× its usual 11.8 Ibirité, 18 September: 14.6 µg/m³ Ibirité, 19 September: 14.7 µg/m³ Ibirité, 20 September: no reading Timóteo Timóteo, 4 September: no reading Timóteo, 5 September: no reading Timóteo, 6 September: no reading Timóteo, 7 September: no reading Timóteo, 8 September: no reading Timóteo, 9 September: no reading Timóteo, 10 September: no reading Timóteo, 11 September: no reading Timóteo, 12 September: no reading Timóteo, 13 September: no reading Timóteo, 14 September: no reading Timóteo, 15 September: 31.3 µg/m³, 2.4× its usual 13.1 Timóteo, 16 September: 16.3 µg/m³ Timóteo, 17 September: 15.8 µg/m³ Timóteo, 18 September: no reading Timóteo, 19 September: no reading Timóteo, 20 September: no reading Itabira Itabira, 4 September: 59.9 µg/m³ Itabira, 5 September: 43.6 µg/m³ Itabira, 6 September: no reading Itabira, 7 September: no reading Itabira, 8 September: no reading Itabira, 9 September: no reading Itabira, 10 September: no reading Itabira, 11 September: no reading Itabira, 12 September: 22.5 µg/m³ Itabira, 13 September: 23.9 µg/m³ Itabira, 14 September: 22.8 µg/m³ Itabira, 15 September: 28.8 µg/m³, 2.3× its usual 12.5 Itabira, 16 September: 25.5 µg/m³, 2.0× its usual 12.5 Itabira, 17 September: 28.1 µg/m³, 2.2× its usual 12.5 Itabira, 18 September: 17.7 µg/m³ Itabira, 19 September: 21.0 µg/m³ Itabira, 20 September: 23.9 µg/m³ Coronel Fabriciano Coronel Fabriciano, 4 September: 42.7 µg/m³ Coronel Fabriciano, 5 September: 31.3 µg/m³ Coronel Fabriciano, 6 September: no reading Coronel Fabriciano, 7 September: no reading Coronel Fabriciano, 8 September: no reading Coronel Fabriciano, 9 September: no reading Coronel Fabriciano, 10 September: no reading Coronel Fabriciano, 11 September: no reading Coronel Fabriciano, 12 September: 14.2 µg/m³ Coronel Fabriciano, 13 September: 14.2 µg/m³ Coronel Fabriciano, 14 September: 21.8 µg/m³ Coronel Fabriciano, 15 September: 25.0 µg/m³ Coronel Fabriciano, 16 September: 26.5 µg/m³, 2.1× its usual 12.6 Coronel Fabriciano, 17 September: 49.0 µg/m³, 3.9× its usual 12.5 Coronel Fabriciano, 18 September: 10.6 µg/m³ Coronel Fabriciano, 19 September: 15.4 µg/m³ Coronel Fabriciano, 20 September: 15.2 µg/m³ Duque de Caxias Duque de Caxias, 4 September: no reading Duque de Caxias, 5 September: no reading Duque de Caxias, 6 September: no reading Duque de Caxias, 7 September: no reading Duque de Caxias, 8 September: no reading Duque de Caxias, 9 September: no reading Duque de Caxias, 10 September: no reading Duque de Caxias, 11 September: no reading Duque de Caxias, 12 September: no reading Duque de Caxias, 13 September: no reading Duque de Caxias, 14 September: no reading Duque de Caxias, 15 September: no reading Duque de Caxias, 16 September: 26.1 µg/m³, 3.6× its usual 7.3 Duque de Caxias, 17 September: no reading Duque de Caxias, 18 September: no reading Duque de Caxias, 19 September: no reading Duque de Caxias, 20 September: no reading 4 Sep 6 8 10 12 14 16 18 20 Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Taubaté São Paulo, Brazil 8 8 September 11.4 6.6× Betim Minas Gerais, Brazil 3 15 September 13.5 6.2× Itaquaquecetuba São Paulo, Brazil 8 10 September 14.8 6.1× Santo André São Paulo, Brazil 8 10 September 13.2 5.8× Jundiaí São Paulo, Brazil 8 9 September 14.7 5.7× Paulínia São Paulo, Brazil 8 9 September 14.4 5.6× São José dos Campos São Paulo, Brazil 8 8 September 10.8 5.4× Campinas São Paulo, Brazil 8 9 September 15.3 5.2× Guaratinguetá São Paulo, Brazil 8 14 September 10.7 5.2× Ribeirão Preto São Paulo, Brazil 8 9 September 18.5 5.0× Ferraz de Vasconcelos São Paulo, Brazil 8 11 September 14.5 5.0× Piracicaba São Paulo, Brazil 8 9 September 14.1 5.0× Rio de Janeiro Rio de Janeiro, Brazil 5 13 September 8.1 5.0× Curitiba Paraná, Brazil 3 12 September 11.1 4.9× Rio Claro São Paulo, Brazil 8 9 September 18.9 4.7× Limeira São Paulo, Brazil 7 9 September 16.7 4.5× São Paulo São Paulo, Brazil 8 9 September 15.1 4.5× Presidente Prudente São Paulo, Brazil 4 14 September 9.9 4.5× Belo Horizonte Minas Gerais, Brazil 3 15 September 13.5 4.3× Bauru São Paulo, Brazil 4 11 September 13.4 4.2× São José do Rio Preto São Paulo, Brazil 7 9 September 20.0 3.9× Coronel Fabriciano Minas Gerais, Brazil 2 17 September 12.5 3.9× Ibirité Minas Gerais, Brazil 3 15 September 11.8 3.9× Santos São Paulo, Brazil 4 12 September 10.7 3.7× Duque de Caxias Rio de Janeiro, Brazil 1 16 September 7.3 3.6× Araucária Paraná, Brazil 3 12 September 14.3 3.4× Congonhas Minas Gerais, Brazil 5 15 September 12.6 3.2× Nova União Minas Gerais, Brazil 1 15 September 17.1 2.8× Tubarão Santa Catarina, Brazil 2 13 September 11.9 2.8× Timóteo Minas Gerais, Brazil 1 15 September 13.1 2.4× Itabira Minas Gerais, Brazil 3 15 September 12.5 2.3×
Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.
Against other episodes in Brazil
The largest of 20 episodes in Brazil since our records began, by cities reached.
Southern Brazil, 7 to 17 September 2024 31 Southern Brazil, 30 August to 5 September 2024 31 Southern Brazil, 22 to 28 September 2024 28 Southern Brazil, 15 to 22 August 2024 27 Southern Brazil, 30 September to 4 October 2024 26 Southern Brazil, 22 to 25 August 2024 24 São Paulo and Paraná, Brazil, October 2024 13 Southern Brazil, July 2025 11 Southern Brazil, 25 to 28 July 2024 11 São Paulo, Minas Gerais and Rio de Janeiro, Brazil, June 2024 11 Southern Brazil, 11 to 13 June 2024 11 Southern Brazil, 7 to 8 June 2024 10 Bars: cities reached; colour: the level of the episode's highest daily reading. All 20 .
Use this page SmogRank, Southern Brazil, 7 to 17 September 2024: 31 cities with PM2.5 at twice their usual or more, 7 to 17 September 2024, smogrank.com/episodes/2024-09-07-southern-brazil (accessed 13 October 2026).
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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms .
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes . Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source. Fire detections from NASA FIRMS; smoke maps from NOAA HMS. Dust: contains modified Copernicus Atmosphere Monitoring Service information 2024. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.
