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Air quality · Cambodia

Takeo Air Quality Index (AQI) today

Modelled estimate for 20:00 local time (UTC+7), refreshed 3 Nov, 07:52 UTC+0.

62 Moderate

Live estimate · modelled

US EPA AQI20:00 UTC+7, 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 65.

Over the next 24 hours the model expects the AQI to range from 54 around 13:00 to 76 around 07:00 (4 Nov).

489th most polluted of 849 cities worldwide right now, 2nd of 2 in Cambodia.

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

21:00 · 64 22:00 · 70 23:00 · 72 00:00 · 72 01:00 · 71 02:00 · 70 03:00 · 69 04:00 · 70 05:00 · 71 06:00 · 72 07:00 · 73 08:00 · 72 09:00 · 71 10:00 · 69 11:00 · 65 12:00 · 61 13:00 · 58 14:00 · 57 15:00 · 58 16:00 · 61 17:00 · 58 18:00 · 55 19:00 · 59 20:00 · 62 21:00 · 66 22:00 · 70 23:00 · 72 00:00 · 72 01:00 · 71 02:00 · 70 03:00 · 70 04:00 · 72 05:00 · 73 06:00 · 75 07:00 · 76 08:00 · 74 09:00 · 69 10:00 · 62 11:00 · 58 12:00 · 55 13:00 · 54 14:00 · 54 15:00 · 54 16:00 · 61 17:00 · 67 18:00 · 71 19:00 · 64 20:00 · 57 21:00 · 59 22:00 · 62 23:00 · 64 00:00 · 66 01:00 · 67 02:00 · 69 03:00 · 70 04:00 · 71 05:00 · 73 06:00 · 76 07:00 · 77 08:00 · 73 09:00 · 71 10:00 · 66 11:00 · 62 12:00 · 58 13:00 · 57 14:00 · 56 Now

US EPA AQI per hour, UTC+7. 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 21:0064
Mon 22:0070
Mon 23:0072
Tue 00:0072
Tue 01:0071
Tue 02:0070
Tue 03:0069
Tue 04:0070
Tue 05:0071
Tue 06:0072
Tue 07:0073
Tue 08:0072
Tue 09:0071
Tue 10:0069
Tue 11:0065
Tue 12:0061
Tue 13:0058
Tue 14:0057
Tue 15:0058
Tue 16:0061
Tue 17:0058
Tue 18:0055
Tue 19:0059
Tue 20:00 · Now62
Tue 21:00 · Forecast66
Tue 22:00 · Forecast70
Tue 23:00 · Forecast72
Wed 00:00 · Forecast72
Wed 01:00 · Forecast71
Wed 02:00 · Forecast70
Wed 03:00 · Forecast70
Wed 04:00 · Forecast72
Wed 05:00 · Forecast73
Wed 06:00 · Forecast75
Wed 07:00 · Forecast76
Wed 08:00 · Forecast74
Wed 09:00 · Forecast69
Wed 10:00 · Forecast62
Wed 11:00 · Forecast58
Wed 12:00 · Forecast55
Wed 13:00 · Forecast54
Wed 14:00 · Forecast54
Wed 15:00 · Forecast54
Wed 16:00 · Forecast61
Wed 17:00 · Forecast67
Wed 18:00 · Forecast71
Wed 19:00 · Forecast64
Wed 20:00 · Forecast57
Wed 21:00 · Forecast59
Wed 22:00 · Forecast62
Wed 23:00 · Forecast64
Thu 00:00 · Forecast66
Thu 01:00 · Forecast67
Thu 02:00 · Forecast69
Thu 03:00 · Forecast70
Thu 04:00 · Forecast71
Thu 05:00 · Forecast73
Thu 06:00 · Forecast76
Thu 07:00 · Forecast77
Thu 08:00 · Forecast73
Thu 09:00 · Forecast71
Thu 10:00 · Forecast66
Thu 11:00 · Forecast62
Thu 12:00 · Forecast58
Thu 13:00 · Forecast57
Thu 14:00 · Forecast56

Pollutants this hour

  • PM2.5 16.8 µg/m³ 24-hour mean 16.8 µg/m³ · 1.1× WHO’s 24-hour guideline (15) 62
  • PM10 17 µg/m³ 14
  • O₃ 53 µg/m³ 41
  • NO₂ 11 µg/m³ 5
  • SO₂ 7 µg/m³ 3
  • CO 0.34 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
Phnom Penh Phnom Penh 62
Cần Thơ Vietnam 59
Ho Chi Minh City Vietnam 74
Biên Hòa Vietnam 74
Bangkok Thailand 201
Da Nang Vietnam 35
Huế Vietnam 69

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 Takeo’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 Takeo right now?
62 on the US EPA scale (Moderate) at 20:00 UTC+7, 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 Takeo 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 Takeo get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 54 around 13:00 to 76 around 07:00 (4 Nov). Forecasts beyond a day are less certain.

How does Takeo compare with other cities?
Right now it is the 489th most polluted of 849 cities we track worldwide, and 2nd of 2 in Cambodia, all on the same US EPA scale.

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