SmogRank / Episodes / Brazil

São Paulo, Minas Gerais and Rio de Janeiro, Brazil, June 2024

For 3 days, from 27 to 29 June 2024, 11 cities in Brazil had PM2.5 at least twice their usual for the time of year. The worst reading was Jundiaí, São Paulo, Brazil: 38.5 µg/m³ on 28 June, about 2.5× its usual 15.1. Ended 29 June.

Likely smoke from firesFires were detected within 300 km of the city on 56% of the counted city-days. Satellites see crop, field and forest fires alike, so this doesn't say which burned.
Cities reached11in 1 country
Days327 to 29 June 2024
Worst day29 June7 cities counted
Furthest above usual2.8×Rio de Janeiro

Day by day

29 June 7 cities at twice their usual or more
LimeiraRio ClaroSão José dos CamposRibeirão PretoPiracicabaFerraz de VasconcelosSão PauloSantosIbiritéDuque de CaxiasNova UniãoBarra LongaItabiraTimóteoCoronel FabricianoIpatingaCongonhasTaubatéSão José do Rio PretoItaquaquecetubaPaulíniaGuaratinguetáBelo HorizonteCampinasBetimJundiaíRio de Janeiro

No fire and smoke map for this day.

24 Jun2526272829301 Jul2
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, seenHeat 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 4 of the 9 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

JundiaíJundiaí, 24 June: 25.3 µg/m³Jundiaí, 25 June: 12.4 µg/m³Jundiaí, 26 June: 17.0 µg/m³Jundiaí, 27 June: 33.7 µg/m³, 2.2× its usual 15.2Jundiaí, 28 June: 38.5 µg/m³, 2.5× its usual 15.1Jundiaí, 29 June: 36.4 µg/m³, 2.4× its usual 15.1Jundiaí, 30 June: 12.9 µg/m³Jundiaí, 1 July: 15.5 µg/m³Jundiaí, 2 July: 17.9 µg/m³CampinasCampinas, 24 June: 22.7 µg/m³Campinas, 25 June: 20.9 µg/m³Campinas, 26 June: 24.0 µg/m³Campinas, 27 June: 32.6 µg/m³, 2.3× its usual 14.2Campinas, 28 June: 32.3 µg/m³, 2.3× its usual 13.8Campinas, 29 June: 30.1 µg/m³, 2.2× its usual 13.7Campinas, 30 June: 15.7 µg/m³Campinas, 1 July: 16.0 µg/m³Campinas, 2 July: 19.2 µg/m³PaulíniaPaulínia, 24 June: 22.1 µg/m³Paulínia, 25 June: 23.8 µg/m³Paulínia, 26 June: 19.6 µg/m³Paulínia, 27 June: 32.4 µg/m³, 2.1× its usual 15.7Paulínia, 28 June: 30.0 µg/m³Paulínia, 29 June: 28.5 µg/m³Paulínia, 30 June: 14.4 µg/m³Paulínia, 1 July: 12.7 µg/m³Paulínia, 2 July: 18.2 µg/m³CongonhasCongonhas, 24 June: 27.3 µg/m³Congonhas, 25 June: 32.4 µg/m³Congonhas, 26 June: 20.6 µg/m³Congonhas, 27 June: 29.3 µg/m³, 2.0× its usual 14.3Congonhas, 28 June: 20.7 µg/m³Congonhas, 29 June: 20.9 µg/m³Congonhas, 30 June: 23.3 µg/m³Congonhas, 1 July: 14.0 µg/m³Congonhas, 2 July: 15.0 µg/m³GuaratinguetáGuaratinguetá, 24 June: 16.8 µg/m³Guaratinguetá, 25 June: 23.0 µg/m³Guaratinguetá, 26 June: 16.7 µg/m³Guaratinguetá, 27 June: 25.9 µg/m³, 2.2× its usual 11.9Guaratinguetá, 28 June: 22.8 µg/m³Guaratinguetá, 29 June: 21.7 µg/m³Guaratinguetá, 30 June: 5.5 µg/m³Guaratinguetá, 1 July: no readingGuaratinguetá, 2 July: no readingItaquaquecetubaItaquaquecetuba, 24 June: 23.5 µg/m³Itaquaquecetuba, 25 June: 8.9 µg/m³Itaquaquecetuba, 26 June: 19.8 µg/m³Itaquaquecetuba, 27 June: 25.8 µg/m³Itaquaquecetuba, 28 June: 32.2 µg/m³, 2.1× its usual 15.5Itaquaquecetuba, 29 June: 27.5 µg/m³Itaquaquecetuba, 30 June: 8.2 µg/m³Itaquaquecetuba, 1 July: 11.3 µg/m³Itaquaquecetuba, 2 July: 13.5 µg/m³TaubatéTaubaté, 24 June: 16.0 µg/m³Taubaté, 25 June: 13.6 µg/m³Taubaté, 26 June: 15.5 µg/m³Taubaté, 27 June: 24.7 µg/m³Taubaté, 28 June: 27.8 µg/m³, 2.1× its usual 13.3Taubaté, 29 June: 26.0 µg/m³, 2.0× its usual 13.0Taubaté, 30 June: 5.3 µg/m³Taubaté, 1 July: 7.8 µg/m³Taubaté, 2 July: 10.9 µg/m³BetimBetim, 24 June: 10.5 µg/m³Betim, 25 June: 16.7 µg/m³Betim, 26 June: 9.6 µg/m³Betim, 27 June: no readingBetim, 28 June: no readingBetim, 29 June: 35.0 µg/m³, 2.4× its usual 14.4Betim, 30 June: 29.2 µg/m³Betim, 1 July: 21.4 µg/m³Betim, 2 July: 15.8 µg/m³Rio de JaneiroRio de Janeiro, 24 June: 23.3 µg/m³Rio de Janeiro, 25 June: 10.3 µg/m³Rio de Janeiro, 26 June: 13.6 µg/m³Rio de Janeiro, 27 June: 16.7 µg/m³Rio de Janeiro, 28 June: 15.8 µg/m³Rio de Janeiro, 29 June: 28.8 µg/m³, 2.8× its usual 10.2Rio de Janeiro, 30 June: 3.5 µg/m³Rio de Janeiro, 1 July: 8.4 µg/m³Rio de Janeiro, 2 July: 12.4 µg/m³São José do Rio Pre…São José do Rio Preto, 24 June: 22.3 µg/m³São José do Rio Preto, 25 June: 28.3 µg/m³São José do Rio Preto, 26 June: 24.8 µg/m³São José do Rio Preto, 27 June: 21.0 µg/m³São José do Rio Preto, 28 June: 24.4 µg/m³São José do Rio Preto, 29 June: 28.7 µg/m³, 2.1× its usual 14.0São José do Rio Preto, 30 June: 20.2 µg/m³São José do Rio Preto, 1 July: 19.9 µg/m³São José do Rio Preto, 2 July: 20.9 µg/m³Belo HorizonteBelo Horizonte, 24 June: 9.8 µg/m³Belo Horizonte, 25 June: 11.0 µg/m³Belo Horizonte, 26 June: 12.0 µg/m³Belo Horizonte, 27 June: 19.0 µg/m³Belo Horizonte, 28 June: 26.4 µg/m³Belo Horizonte, 29 June: 27.5 µg/m³, 2.2× its usual 12.3Belo Horizonte, 30 June: 20.7 µg/m³Belo Horizonte, 1 July: 13.5 µg/m³Belo Horizonte, 2 July: 11.4 µg/m³24 Jun2526272829301 Jul2
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.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
Rio de JaneiroRio de Janeiro, Brazil1 28.829 June10.22.8×
JundiaíSão Paulo, Brazil3 38.528 June15.12.5×
BetimMinas Gerais, Brazil1 35.029 June14.42.4×
CampinasSão Paulo, Brazil3 32.627 June14.22.3×
Belo HorizonteMinas Gerais, Brazil1 27.529 June12.32.2×
GuaratinguetáSão Paulo, Brazil1 25.927 June11.92.2×
PaulíniaSão Paulo, Brazil1 32.427 June15.72.1×
ItaquaquecetubaSão Paulo, Brazil1 32.228 June15.52.1×
São José do Rio PretoSão Paulo, Brazil1 28.729 June14.02.1×
TaubatéSão Paulo, Brazil2 27.828 June13.32.1×
CongonhasMinas Gerais, Brazil1 29.327 June14.32.0×

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

Number 10 of 20 episodes in Brazil since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 20.

Use this page

SmogRank, São Paulo, Minas Gerais and Rio de Janeiro, Brazil, June 2024: 11 cities with PM2.5 at twice their usual or more, 27 to 29 June 2024, smogrank.com/episodes/2024-06-sao-paulo-minas-gerais-and-rio-de-janeiro-brazil (accessed 12 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.