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Air quality · Goiás, Brazil

Goiânia Air Quality Index (AQI) today

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

27 Good

Live estimate · modelled

US EPA AQI09:00 UTC-3, 3 Nov Main pollutant: O₃

Air quality is satisfactory, and air pollution poses little or no risk.

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 16.

Over the next 24 hours the model expects the AQI to range from 30 around 10:00 to 58 around 16:00 (3 Nov).

798th most polluted of 849 cities worldwide right now, 23rd of 25 in Brazil.

What to do today

  • Long walk or run outside OK
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is satisfactory, and air pollution poses little or no risk.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

10:00 · 22 11:00 · 29 12:00 · 35 13:00 · 43 14:00 · 50 15:00 · 64 16:00 · 74 17:00 · 71 18:00 · 64 19:00 · 54 20:00 · 47 21:00 · 43 22:00 · 38 23:00 · 33 00:00 · 30 01:00 · 27 02:00 · 25 03:00 · 23 04:00 · 23 05:00 · 22 06:00 · 22 07:00 · 23 08:00 · 24 09:00 · 27 10:00 · 30 11:00 · 33 12:00 · 38 13:00 · 42 14:00 · 46 15:00 · 50 16:00 · 58 17:00 · 58 18:00 · 58 19:00 · 51 20:00 · 47 21:00 · 44 22:00 · 41 23:00 · 42 00:00 · 43 01:00 · 46 02:00 · 49 03:00 · 52 04:00 · 54 05:00 · 55 06:00 · 56 07:00 · 57 08:00 · 54 09:00 · 46 10:00 · 41 11:00 · 37 12:00 · 35 13:00 · 42 14:00 · 48 15:00 · 54 16:00 · 61 17:00 · 58 18:00 · 51 19:00 · 47 20:00 · 44 21:00 · 52 22:00 · 54 23:00 · 57 00:00 · 59 01:00 · 60 02:00 · 60 03:00 · 60 04:00 · 60 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 10:0022
Mon 11:0029
Mon 12:0035
Mon 13:0043
Mon 14:0050
Mon 15:0064
Mon 16:0074
Mon 17:0071
Mon 18:0064
Mon 19:0054
Mon 20:0047
Mon 21:0043
Mon 22:0038
Mon 23:0033
Tue 00:0030
Tue 01:0027
Tue 02:0025
Tue 03:0023
Tue 04:0023
Tue 05:0022
Tue 06:0022
Tue 07:0023
Tue 08:0024
Tue 09:00 · Now27
Tue 10:00 · Forecast30
Tue 11:00 · Forecast33
Tue 12:00 · Forecast38
Tue 13:00 · Forecast42
Tue 14:00 · Forecast46
Tue 15:00 · Forecast50
Tue 16:00 · Forecast58
Tue 17:00 · Forecast58
Tue 18:00 · Forecast58
Tue 19:00 · Forecast51
Tue 20:00 · Forecast47
Tue 21:00 · Forecast44
Tue 22:00 · Forecast41
Tue 23:00 · Forecast42
Wed 00:00 · Forecast43
Wed 01:00 · Forecast46
Wed 02:00 · Forecast49
Wed 03:00 · Forecast52
Wed 04:00 · Forecast54
Wed 05:00 · Forecast55
Wed 06:00 · Forecast56
Wed 07:00 · Forecast57
Wed 08:00 · Forecast54
Wed 09:00 · Forecast46
Wed 10:00 · Forecast41
Wed 11:00 · Forecast37
Wed 12:00 · Forecast35
Wed 13:00 · Forecast42
Wed 14:00 · Forecast48
Wed 15:00 · Forecast54
Wed 16:00 · Forecast61
Wed 17:00 · Forecast58
Wed 18:00 · Forecast51
Wed 19:00 · Forecast47
Wed 20:00 · Forecast44
Wed 21:00 · Forecast52
Wed 22:00 · Forecast54
Wed 23:00 · Forecast57
Thu 00:00 · Forecast59
Thu 01:00 · Forecast60
Thu 02:00 · Forecast60
Thu 03:00 · Forecast60
Thu 04:00 · Forecast60

Pollutants this hour

  • PM2.5 3.4 µg/m³ 24-hour mean 3.0 µg/m³ · within WHO’s 24-hour guideline (15) 17
  • PM10 4 µg/m³ 3
  • O₃ 91 µg/m³ 27
  • NO₂ 5 µg/m³ 2
  • SO₂ 2 µg/m³ 0
  • CO 0.33 mg/m³ 2

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
Brasília Federal District 27
Uberlândia Minas Gerais 23
Ribeirão Preto São Paulo 172
Belo Horizonte Minas Gerais 46
Campo Grande Mato Grosso do Sul 24
Campinas São Paulo 81
Sorocaba São Paulo 84

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 Goiânia’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 Goiânia right now?
27 on the US EPA scale (Good) at 09:00 UTC-3, 3 Nov. O₃ 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 Goiânia today?
For most people, yes. The EPA’s statement for “Good”: Air quality is satisfactory, and air pollution poses little or no risk. General guidance, not medical advice.

Will the air in Goiânia get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 30 around 10:00 to 58 around 16:00 (3 Nov). Forecasts beyond a day are less certain.

How does Goiânia compare with other cities?
Right now it is the 798th most polluted of 849 cities we track worldwide, and 23rd of 25 in Brazil, all on the same US EPA scale.

Why does another app show a different AQI for Goiânia?
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.