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Air quality · Can Tho City, Vietnam

Cần Thơ Air Quality Index (AQI) today

Modelled estimate for 19:00 local time (UTC+7), refreshed 3 Nov, 07:52 UTC+0.

57 Moderate

Live estimate · modelled

US EPA AQI19:00 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 66.

Over the next 24 hours the model expects the AQI to range from 52 around 16:00 to 72 around 01:00 (4 Nov).

529th most polluted of 849 cities worldwide right now, 8th of 9 in Vietnam.

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

20:00 · 72 21:00 · 77 22:00 · 82 23:00 · 87 00:00 · 91 01:00 · 96 02:00 · 100 03:00 · 92 04:00 · 77 05:00 · 67 06:00 · 63 07:00 · 58 08:00 · 55 09:00 · 52 10:00 · 50 11:00 · 47 12:00 · 44 13:00 · 43 14:00 · 46 15:00 · 50 16:00 · 49 17:00 · 52 18:00 · 53 19:00 · 57 20:00 · 59 21:00 · 62 22:00 · 66 23:00 · 69 00:00 · 70 01:00 · 72 02:00 · 70 03:00 · 65 04:00 · 61 05:00 · 59 06:00 · 59 07:00 · 57 08:00 · 55 09:00 · 54 10:00 · 53 11:00 · 53 12:00 · 53 13:00 · 53 14:00 · 53 15:00 · 53 16:00 · 52 17:00 · 53 18:00 · 58 19:00 · 68 20:00 · 77 21:00 · 84 22:00 · 88 23:00 · 88 00:00 · 87 01:00 · 88 02:00 · 90 03:00 · 93 04:00 · 96 05:00 · 100 06:00 · 106 07:00 · 103 08:00 · 97 09:00 · 87 10:00 · 77 11:00 · 71 12:00 · 69 13:00 · 68 14:00 · 66 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 20:0072
Mon 21:0077
Mon 22:0082
Mon 23:0087
Tue 00:0091
Tue 01:0096
Tue 02:00100
Tue 03:0092
Tue 04:0077
Tue 05:0067
Tue 06:0063
Tue 07:0058
Tue 08:0055
Tue 09:0052
Tue 10:0050
Tue 11:0047
Tue 12:0044
Tue 13:0043
Tue 14:0046
Tue 15:0050
Tue 16:0049
Tue 17:0052
Tue 18:0053
Tue 19:00 · Now57
Tue 20:00 · Forecast59
Tue 21:00 · Forecast62
Tue 22:00 · Forecast66
Tue 23:00 · Forecast69
Wed 00:00 · Forecast70
Wed 01:00 · Forecast72
Wed 02:00 · Forecast70
Wed 03:00 · Forecast65
Wed 04:00 · Forecast61
Wed 05:00 · Forecast59
Wed 06:00 · Forecast59
Wed 07:00 · Forecast57
Wed 08:00 · Forecast55
Wed 09:00 · Forecast54
Wed 10:00 · Forecast53
Wed 11:00 · Forecast53
Wed 12:00 · Forecast53
Wed 13:00 · Forecast53
Wed 14:00 · Forecast53
Wed 15:00 · Forecast53
Wed 16:00 · Forecast52
Wed 17:00 · Forecast53
Wed 18:00 · Forecast58
Wed 19:00 · Forecast68
Wed 20:00 · Forecast77
Wed 21:00 · Forecast84
Wed 22:00 · Forecast88
Wed 23:00 · Forecast88
Thu 00:00 · Forecast87
Thu 01:00 · Forecast88
Thu 02:00 · Forecast90
Thu 03:00 · Forecast93
Thu 04:00 · Forecast96
Thu 05:00 · Forecast100
Thu 06:00 · Forecast106
Thu 07:00 · Forecast103
Thu 08:00 · Forecast97
Thu 09:00 · Forecast87
Thu 10:00 · Forecast77
Thu 11:00 · Forecast71
Thu 12:00 · Forecast69
Thu 13:00 · Forecast68
Thu 14:00 · Forecast66

Pollutants this hour

  • PM2.5 13.9 µg/m³ 24-hour mean 16.9 µg/m³ · 1.1× WHO’s 24-hour guideline (15) 57
  • PM10 15 µg/m³ 12
  • O₃ 42 µg/m³ 31
  • NO₂ 18 µg/m³ 8
  • SO₂ 13 µg/m³ 6
  • CO 0.57 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
Ho Chi Minh City Ho Chi Minh City (HCMC) 69
Biên Hòa Dong Nai 69
Takeo Cambodia 59
Phnom Penh Cambodia 74
Bangkok Thailand 204
Da Nang Da Nang City 37
Huế Thừa Thiên Huế Province 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 Cần Thơ’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 Cần Thơ right now?
57 on the US EPA scale (Moderate) at 19:00 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 Cần Thơ 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 Cần Thơ get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 52 around 16:00 to 72 around 01:00 (4 Nov). Forecasts beyond a day are less certain.

How does Cần Thơ compare with other cities?
Right now it is the 529th most polluted of 849 cities we track worldwide, and 8th of 9 in Vietnam, all on the same US EPA scale.

Why does another app show a different AQI for Cần Thơ?
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.