Air Quality Monitor

The U.S. Consulate General Ho Chi Minh City has installed an air quality monitor to measure PM 2.5 particulates as an indication of the air quality at the Consulate compound at 4 Le Duan street in District 1 of the city.

For more details on air quality index, please follow the link to the Environmental Protection Agency’s Air Now website. Ho Chi Minh City AQI can be observed either by clicking on the Ho Chi Minh City location on the map, or by selecting Ho Chi Minh City in the “Select a City” option on the upper right part of the page.  The page provides AQI over the last 24 hour period as well as pollutant concentration and a downloadable historical document.

Please note that citywide analysis cannot be done with data from a single monitor.  This data provides an accurate measure of the air quality in the section of Ho Chi Minh City close to the U.S. Consulate.

The U.S. Environmental Protection Agency (EPA) has developed a formula to convert PM 2.5 readings into an air quality index (AQI) value that can help inform health-related decisions.  Meanings of AQI numerical values can be seen in the chart below.  For more information on AQI and how it is calculated, please click here.

Air Quality Index Levels of Health Concern Numerical Value Meaning
Good 0 to 50 Air quality is considered satisfactory, and air pollution poses little or no risk
Moderate 51 to 100 Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Unhealthy for Sensitive Groups 101 to 150 Members of sensitive groups may experience health effects. The general public is not likely to be affected.
Unhealthy 151 to 200 Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy 201 to 300 Health warnings of emergency conditions. The entire population is more likely to be affected.
Hazardous 301 to 500 Health alert: everyone may experience more serious health effects.