Humagai, B.K. , Adhikari, K., Pradhan, B. and Yangzom, T. 2022. Assessment of Ambient Particulate Matter Concentrations- PM10, PM2.5 and PM1 at Rinchending in Phuentsholing, Bhutan. Bhutan Journal of Research and Development . (Apr. 2022). DOI:https://doi.org/10.17102/bjrd.rub.10.2.019.