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Air quality · Bolívar, Venezuela

Ciudad Guayana Air Quality Index (AQI) today

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

14 Good

Live estimate · modelled

US EPA AQI08:00 UTC-4, 3 Nov Main pollutant: PM2.5

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 17.

Over the next 24 hours the model expects the AQI to range from 14 around 09:00 to 44 around 19:00 (3 Nov).

849th most polluted of 849 cities worldwide right now, 7th of 7 in Venezuela.

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

09:00 · 19 10:00 · 19 11:00 · 18 12:00 · 17 13:00 · 19 14:00 · 20 15:00 · 21 16:00 · 21 17:00 · 22 18:00 · 23 19:00 · 23 20:00 · 23 21:00 · 21 22:00 · 19 23:00 · 17 00:00 · 15 01:00 · 13 02:00 · 13 03:00 · 13 04:00 · 13 05:00 · 13 06:00 · 14 07:00 · 14 08:00 · 14 09:00 · 14 10:00 · 14 11:00 · 17 12:00 · 21 13:00 · 25 14:00 · 29 15:00 · 33 16:00 · 38 17:00 · 41 18:00 · 43 19:00 · 44 20:00 · 43 21:00 · 42 22:00 · 41 23:00 · 41 00:00 · 41 01:00 · 41 02:00 · 39 03:00 · 37 04:00 · 34 05:00 · 32 06:00 · 31 07:00 · 31 08:00 · 30 09:00 · 29 10:00 · 30 11:00 · 32 12:00 · 33 13:00 · 36 14:00 · 38 15:00 · 40 16:00 · 42 17:00 · 44 18:00 · 48 19:00 · 52 20:00 · 52 21:00 · 51 22:00 · 46 23:00 · 40 00:00 · 34 01:00 · 31 02:00 · 27 03:00 · 24 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 09:0019
Mon 10:0019
Mon 11:0018
Mon 12:0017
Mon 13:0019
Mon 14:0020
Mon 15:0021
Mon 16:0021
Mon 17:0022
Mon 18:0023
Mon 19:0023
Mon 20:0023
Mon 21:0021
Mon 22:0019
Mon 23:0017
Tue 00:0015
Tue 01:0013
Tue 02:0013
Tue 03:0013
Tue 04:0013
Tue 05:0013
Tue 06:0014
Tue 07:0014
Tue 08:00 · Now14
Tue 09:00 · Forecast14
Tue 10:00 · Forecast14
Tue 11:00 · Forecast17
Tue 12:00 · Forecast21
Tue 13:00 · Forecast25
Tue 14:00 · Forecast29
Tue 15:00 · Forecast33
Tue 16:00 · Forecast38
Tue 17:00 · Forecast41
Tue 18:00 · Forecast43
Tue 19:00 · Forecast44
Tue 20:00 · Forecast43
Tue 21:00 · Forecast42
Tue 22:00 · Forecast41
Tue 23:00 · Forecast41
Wed 00:00 · Forecast41
Wed 01:00 · Forecast41
Wed 02:00 · Forecast39
Wed 03:00 · Forecast37
Wed 04:00 · Forecast34
Wed 05:00 · Forecast32
Wed 06:00 · Forecast31
Wed 07:00 · Forecast31
Wed 08:00 · Forecast30
Wed 09:00 · Forecast29
Wed 10:00 · Forecast30
Wed 11:00 · Forecast32
Wed 12:00 · Forecast33
Wed 13:00 · Forecast36
Wed 14:00 · Forecast38
Wed 15:00 · Forecast40
Wed 16:00 · Forecast42
Wed 17:00 · Forecast44
Wed 18:00 · Forecast48
Wed 19:00 · Forecast52
Wed 20:00 · Forecast52
Wed 21:00 · Forecast51
Wed 22:00 · Forecast46
Wed 23:00 · Forecast40
Thu 00:00 · Forecast34
Thu 01:00 · Forecast31
Thu 02:00 · Forecast27
Thu 03:00 · Forecast24

Pollutants this hour

  • PM2.5 2.5 µg/m³ 24-hour mean 3.1 µg/m³ · within WHO’s 24-hour guideline (15) 14
  • PM10 4 µg/m³ 3
  • O₃ 33 µg/m³ 11
  • NO₂ 2 µg/m³ 1
  • SO₂ 1 µg/m³ 0
  • CO 0.16 mg/m³ 1

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
Maturín Monagas 31
Chaguanas Trinidad and Tobago 16
Port of Spain Trinidad and Tobago 18
Barcelona Anzoátegui 56
Caracas Distrito Federal 56
Valencia Carabobo 57
Barquisimeto Lara 36

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 Ciudad Guayana’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 Ciudad Guayana right now?
14 on the US EPA scale (Good) 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 Ciudad Guayana 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 Ciudad Guayana get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 14 around 09:00 to 44 around 19:00 (3 Nov). Forecasts beyond a day are less certain.

How does Ciudad Guayana compare with other cities?
Right now it is the 849th most polluted of 849 cities we track worldwide, and 7th of 7 in Venezuela, all on the same US EPA scale.

Why does another app show a different AQI for Ciudad Guayana?
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.