Assoc. Prof. Dr. Prayoon Fongsatitkul Faculty of Public Health, Mahidol University The objective of this research was to study the use of oil palm ash as an adsorbent for chromium removal in chrome plating wastewater and in admixture for stabilization/solidification of ash-sludge. This research was divided into two parts: Firstly, it investigated the amount of… (read more)

Prof. Dr. Pornpimol Kongtip Faculty of Public Health, Mahidol University A cross-sectional study was conducted from March to December, 2009. The exposure concentrations of 60 bus drivers and 60 bus conductors of fine particles (PM2.5), respirable particles (PM10), volatile organic compounds (VOCs) and the level of carbon dioxide (CO2), carbon monoxide (CO), temperature, and relative… (read more)