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Air quality · São Paulo, Brazil

Campinas Air Quality Index (AQI) today

Modelled estimate for 09:00 local time (UTC-3), refreshed 3 Nov, 07:52 UTC+0.

81 Moderate

Live estimate · modelled

US EPA AQI09:00 UTC-3, 3 Nov Main pollutant: PM2.5

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

This page uses EPA’s NowCast, which follows the last few hours, as the US government’s AirNow does. On a 24-hour average of particles, as many apps show, it is 84.

Over the next 24 hours the model expects the AQI to range from 63 around 13:00 to 151 around 06:00 (4 Nov).

293rd most polluted of 849 cities worldwide right now, 4th of 25 in Brazil.

What to do today

  • Long walk or run outside OK, lighter if very sensitive
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

10:00 · 58 11:00 · 52 12:00 · 51 13:00 · 52 14:00 · 55 15:00 · 57 16:00 · 62 17:00 · 63 18:00 · 66 19:00 · 76 20:00 · 83 21:00 · 96 22:00 · 99 23:00 · 95 00:00 · 96 01:00 · 102 02:00 · 109 03:00 · 114 04:00 · 115 05:00 · 115 06:00 · 118 07:00 · 112 08:00 · 93 09:00 · 81 10:00 · 73 11:00 · 67 12:00 · 64 13:00 · 63 14:00 · 64 15:00 · 90 16:00 · 105 17:00 · 112 18:00 · 105 19:00 · 108 20:00 · 137 21:00 · 148 22:00 · 144 23:00 · 134 00:00 · 125 01:00 · 125 02:00 · 131 03:00 · 138 04:00 · 145 05:00 · 150 06:00 · 151 07:00 · 148 08:00 · 138 09:00 · 109 10:00 · 90 11:00 · 79 12:00 · 72 13:00 · 93 14:00 · 119 15:00 · 140 16:00 · 143 17:00 · 133 18:00 · 115 19:00 · 121 20:00 · 155 21:00 · 165 22:00 · 174 23:00 · 176 00:00 · 168 01:00 · 162 02:00 · 158 03:00 · 154 04:00 · 148 Now

US EPA AQI per hour, UTC-3. Particles use EPA’s NowCast (a 12-hour weighted average), ozone and CO an 8-hour average. Lighter bars are the CAMS forecast.

Show as a table
TimeAQI
Mon 10:0058
Mon 11:0052
Mon 12:0051
Mon 13:0052
Mon 14:0055
Mon 15:0057
Mon 16:0062
Mon 17:0063
Mon 18:0066
Mon 19:0076
Mon 20:0083
Mon 21:0096
Mon 22:0099
Mon 23:0095
Tue 00:0096
Tue 01:00102
Tue 02:00109
Tue 03:00114
Tue 04:00115
Tue 05:00115
Tue 06:00118
Tue 07:00112
Tue 08:0093
Tue 09:00 · Now81
Tue 10:00 · Forecast73
Tue 11:00 · Forecast67
Tue 12:00 · Forecast64
Tue 13:00 · Forecast63
Tue 14:00 · Forecast64
Tue 15:00 · Forecast90
Tue 16:00 · Forecast105
Tue 17:00 · Forecast112
Tue 18:00 · Forecast105
Tue 19:00 · Forecast108
Tue 20:00 · Forecast137
Tue 21:00 · Forecast148
Tue 22:00 · Forecast144
Tue 23:00 · Forecast134
Wed 00:00 · Forecast125
Wed 01:00 · Forecast125
Wed 02:00 · Forecast131
Wed 03:00 · Forecast138
Wed 04:00 · Forecast145
Wed 05:00 · Forecast150
Wed 06:00 · Forecast151
Wed 07:00 · Forecast148
Wed 08:00 · Forecast138
Wed 09:00 · Forecast109
Wed 10:00 · Forecast90
Wed 11:00 · Forecast79
Wed 12:00 · Forecast72
Wed 13:00 · Forecast93
Wed 14:00 · Forecast119
Wed 15:00 · Forecast140
Wed 16:00 · Forecast143
Wed 17:00 · Forecast133
Wed 18:00 · Forecast115
Wed 19:00 · Forecast121
Wed 20:00 · Forecast155
Wed 21:00 · Forecast165
Wed 22:00 · Forecast174
Wed 23:00 · Forecast176
Thu 00:00 · Forecast168
Thu 01:00 · Forecast162
Thu 02:00 · Forecast158
Thu 03:00 · Forecast154
Thu 04:00 · Forecast148

Pollutants this hour

  • PM2.5 18.8 µg/m³ 24-hour mean 26.7 µg/m³ · 1.8× WHO’s 24-hour guideline (15) 81
  • PM10 20 µg/m³ 23
  • O₃ 96 µg/m³ 13
  • NO₂ 10 µg/m³ 5
  • SO₂ 5 µg/m³ 1
  • CO 0.52 mg/m³ 3

Modelled concentrations at the city’s location (CAMS). The sub-index uses the same averaging as the headline, so the highest one is the AQI.

Nearby cities

City AQI
Sorocaba São Paulo 84
São Paulo São Paulo 71
São José dos Campos São Paulo 52
Ribeirão Preto São Paulo 172
Curitiba Paraná 57
Nova Iguaçu Rio de Janeiro 58
Rio de Janeiro Rio de Janeiro 64

Where this number comes from

The Copernicus Atmosphere Monitoring Service (CAMS) forecasts air pollution worldwide on a grid (about 11 km over Europe, about 45 km elsewhere). We take the grid value at Campinas’s coordinates and score it with the US EPA’s method. It is a model, not a measurement: a nearby monitoring station can read quite differently, especially next to busy roads or during fires and dust storms.

Full methodology · Data: CAMS via Open-Meteo (CC BY 4.0); city list: GeoNames (CC BY 4.0).

  • Good 0–50
  • Moderate 51–100
  • Unhealthy for sensitive groups 101–150
  • Unhealthy 151–200
  • Very unhealthy 201–300
  • Hazardous 301–500

Questions

What is the AQI in Campinas right now?
81 on the US EPA scale (Moderate) at 09:00 UTC-3, 3 Nov. PM2.5 is the pollutant with the highest sub-index. This is a modelled estimate from the Copernicus Atmosphere Monitoring Service (CAMS), not a reading from a monitoring station.

Is it safe to exercise outside in Campinas today?
For most people, yes. The EPA’s statement for “Moderate”: Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. General guidance, not medical advice.

Will the air in Campinas get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 63 around 13:00 to 151 around 06:00 (4 Nov). Forecasts beyond a day are less certain.

How does Campinas compare with other cities?
Right now it is the 293rd most polluted of 849 cities we track worldwide, and 4th of 25 in Brazil, all on the same US EPA scale.

Why does another app show a different AQI for Campinas?
Apps differ in source (government stations, low-cost sensors or a model like this one), in scale (US EPA, European, or a national index) and in averaging (hourly or NowCast, 8-hour, 24-hour). This page uses the US EPA AQI with EPA’s NowCast for particles, computed from the CAMS forecast for the city’s location.