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This research was conducted to evaluate particulate matter 10 (PM10) concentrations in ambient air of West Sumatra Province during rainy season, i.e., in March 2018. Data from four sampling locations were collected. The first one was collected from an air quality monitoring station (AQMS) located at a roadside in the office of West Sumatra Governor. The other locations represent industrial area, i.e., nearby a cement production plant, a campus area that is located nearby an agricultural area, and a background concentration area that is considered unaffected by anthropogenic sources. The measurement results show that the highest PM10 was obtained nearby the cement industry area which was 68.71±10.99 µg/Nm3. This value exceeded World Health Organization (WHO) threshold for 24-hour measurement, although it is still below the Indonesian National Ambient Air Quality Standard (NAAQS). On the other hand, the rest locations still met both WHO and Indonesian NAAQ Standards, i.e. 13.20±3.11, 28.60±13.97, and 33.85±8.41 µg/Nm3, at the background concentration location, Governor-s Office, and the campus area, PM10 concentrations were, respectively.