Abstract
In this study, we studied the effects of ambient temperature, air humidity and wind speed to PM10 and PM2.5 concentrations in the air with the field area is Highway Phap Van - Cau Gie. SPSS (Statistical Package for the Social Sciences) software supports statistical analysis and Origin software were used. The results show that there is a positive correlation between the air humidity and the PM10 and PM2.5 content with the correlation coefficients of r = 0.68 and r = 0.7, respectively.