Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/136419
Title: OCCURRENCE, DISTRIBUTION AND BIOACCUMULATION BEHAVIOUR OF HYDROPHOBIC ORGANIC CONTAMINANTS IN AN URBAN WATERSHED IN SINGAPORE
Authors: WANG QIAN
Keywords: emerging organic contaminants, occurrence, distribution, bioaccumulation, freshwater ecosystem, constructed wetland
Issue Date: 18-Jan-2017
Citation: WANG QIAN (2017-01-18). OCCURRENCE, DISTRIBUTION AND BIOACCUMULATION BEHAVIOUR OF HYDROPHOBIC ORGANIC CONTAMINANTS IN AN URBAN WATERSHED IN SINGAPORE. ScholarBank@NUS Repository.
Abstract: Emerging organic contaminants (EOCs) are gaining more attentions due to their relatively high production volume and environmental concentrations currently. In this research, occurrence, fate and partitioning behaviour in water-sediments-biota system of EOCs have been fully investigated and compared with the well understood hydrophobic organic compounds (HOCs), such as organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs). EOCs exhibited high levels in water, while legacy POPs were observed at high concentrations in sediments and biota, exceeding guidelines in some cases. In the section of bioaccumulation, we found that the bioaccumulation potential generally correlated to the hydrophobicity. Finally, a bioaccumulation model was carried out to predict the bioaccumulation potential of the HOCs in this urban freshwater catchment. The present study provides fundamental information to help assess exposure risks and potential impacts to ecological and human health.
URI: http://scholarbank.nus.edu.sg/handle/10635/136419
Appears in Collections:Ph.D Theses (Open)

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