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Air quality · Amazonas, Brazil

Manaus Air Quality Index (AQI) today

Modelled estimate for 08:00 local time (UTC-4), refreshed 3 Nov, 07:52 UTC+0.

99 Moderate

Live estimate · modelled

US EPA AQI08:00 UTC-4, 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 113.

Over the next 24 hours the model expects the AQI to range from 69 around 08:00 to 93 around 09:00 (3 Nov).

199th most polluted of 849 cities worldwide right now, 2nd 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

09:00 · 93 10:00 · 95 11:00 · 98 12:00 · 103 13:00 · 108 14:00 · 111 15:00 · 111 16:00 · 111 17:00 · 112 18:00 · 115 19:00 · 119 20:00 · 120 21:00 · 120 22:00 · 121 23:00 · 121 00:00 · 122 01:00 · 122 02:00 · 122 03:00 · 122 04:00 · 121 05:00 · 118 06:00 · 113 07:00 · 106 08:00 · 99 09:00 · 93 10:00 · 89 11:00 · 87 12:00 · 87 13:00 · 87 14:00 · 85 15:00 · 85 16:00 · 84 17:00 · 83 18:00 · 84 19:00 · 83 20:00 · 83 21:00 · 83 22:00 · 83 23:00 · 83 00:00 · 83 01:00 · 82 02:00 · 81 03:00 · 80 04:00 · 78 05:00 · 76 06:00 · 74 07:00 · 71 08:00 · 69 09:00 · 67 10:00 · 67 11:00 · 67 12:00 · 69 13:00 · 70 14:00 · 71 15:00 · 75 16:00 · 76 17:00 · 75 18:00 · 75 19:00 · 75 20:00 · 75 21:00 · 75 22:00 · 74 23:00 · 74 00:00 · 74 01:00 · 73 02:00 · 72 03:00 · 71 Now

US EPA AQI per hour, UTC-4. 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 09:0093
Mon 10:0095
Mon 11:0098
Mon 12:00103
Mon 13:00108
Mon 14:00111
Mon 15:00111
Mon 16:00111
Mon 17:00112
Mon 18:00115
Mon 19:00119
Mon 20:00120
Mon 21:00120
Mon 22:00121
Mon 23:00121
Tue 00:00122
Tue 01:00122
Tue 02:00122
Tue 03:00122
Tue 04:00121
Tue 05:00118
Tue 06:00113
Tue 07:00106
Tue 08:00 · Now99
Tue 09:00 · Forecast93
Tue 10:00 · Forecast89
Tue 11:00 · Forecast87
Tue 12:00 · Forecast87
Tue 13:00 · Forecast87
Tue 14:00 · Forecast85
Tue 15:00 · Forecast85
Tue 16:00 · Forecast84
Tue 17:00 · Forecast83
Tue 18:00 · Forecast84
Tue 19:00 · Forecast83
Tue 20:00 · Forecast83
Tue 21:00 · Forecast83
Tue 22:00 · Forecast83
Tue 23:00 · Forecast83
Wed 00:00 · Forecast83
Wed 01:00 · Forecast82
Wed 02:00 · Forecast81
Wed 03:00 · Forecast80
Wed 04:00 · Forecast78
Wed 05:00 · Forecast76
Wed 06:00 · Forecast74
Wed 07:00 · Forecast71
Wed 08:00 · Forecast69
Wed 09:00 · Forecast67
Wed 10:00 · Forecast67
Wed 11:00 · Forecast67
Wed 12:00 · Forecast69
Wed 13:00 · Forecast70
Wed 14:00 · Forecast71
Wed 15:00 · Forecast75
Wed 16:00 · Forecast76
Wed 17:00 · Forecast75
Wed 18:00 · Forecast75
Wed 19:00 · Forecast75
Wed 20:00 · Forecast75
Wed 21:00 · Forecast75
Wed 22:00 · Forecast74
Wed 23:00 · Forecast74
Thu 00:00 · Forecast74
Thu 01:00 · Forecast73
Thu 02:00 · Forecast72
Thu 03:00 · Forecast71

Pollutants this hour

  • PM2.5 30.3 µg/m³ 24-hour mean 40.5 µg/m³ · 2.7× WHO’s 24-hour guideline (15) 99
  • PM10 31 µg/m³ 32
  • O₃ 60 µg/m³ 21
  • NO₂ 3 µg/m³ 1
  • SO₂ 3 µg/m³ 1
  • CO 0.39 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
Belém Pará 47
Ciudad Guayana Venezuela 14
Maturín Venezuela 31
Chaguanas Trinidad and Tobago 16
Port of Spain Trinidad and Tobago 18
Barcelona Venezuela 56
Santa Cruz de la Sierra Bolivia 53

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 Manaus’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 Manaus right now?
99 on the US EPA scale (Moderate) at 08:00 UTC-4, 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 Manaus 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 Manaus get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 69 around 08:00 to 93 around 09:00 (3 Nov). Forecasts beyond a day are less certain.

How does Manaus compare with other cities?
Right now it is the 199th most polluted of 849 cities we track worldwide, and 2nd of 25 in Brazil, all on the same US EPA scale.

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