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Item Metadata only Color removal from dyeing wastewater by using bagasse ash(Mahidol University. Mahidol University Library and Knowledge Center, 2004) Pimampai Kongdang; Suvit ShumnumsirivathItem Metadata only Emission factor of VOCs from non-point source : case study of chemical laboratory(Mahidol University. Mahidol University Library and Knowledge Center, 2014) Thanasorn Wimolrattanasil; Sarawut Thepanondh; Sopa Chinwetkitvanich; Wanida Jinsartenvironmental media were estimated by using mass balance calculation. The emission rate of ethyl acetate to water from the school's laboratory was estimated as 119.40 and 328.36 kg/1000 kg for open-room and closed-room conditions, respectively. There were... no releases of chemicals to waste. The emission rate of ethyl acetate to waste from the university's laboratory was 425.75 kg/1000 kg. There was no emission to water. As for the commercial laboratory, the emission rates of isopropyl alcohol and tolueneItem Metadata only Paraquat contamination in the Chanthaburi river and vicinity areas and correlation between water quality index (WQI) and biodiversity index of algae(Mahidol University. Mahidol University Library and Knowledge Center, 2013) Kankanit Suppaudom; Poranee Pataranawat; Krisana Teankaprasith; Sopa Chinwetkitvanichas moderately polluted (Biodiversity index = 1-3). However, most of the water qualities in this area classified by using the WQI calculated from 8 quality parameters were found to be good (WQI = 71-100). Consequently, there was no significant correlation (r = 0...This research was conducted to investigate paraquat contamination in the water column of the Chanthaburi River and surface soil in vicinity areas along the river. All samples were collected to determine paraquat contaminated concentrations