Passive sampling of SO2 and NO2 in ambient air in Ho Chi Minh City. November 2002.

As part of a screening study passive sampling of SO2 and NO2 was performed at 20 selected sites in Ho Chi Minh City. The main conclusion was that the two-week average concentrations of NO2 and SO2 measured at 20 sites in HCMC seem to be in agreement to the general information of air quality given by the monitoring network. Typical monthly average concentrations measured at the DOSTE site, based on the monthly reports produced by DOSTE, varies around 60-70 μg/m^3 for SO2 and around 70-80 μg/m^3 for NO2.