Please use this identifier to cite or link to this item: https://doi.org/10.1023/A:1025689600993
Title: Persistent organic pollutants in Singapore's coastal marine environment: Part I, seawater
Authors: Basheer, C. 
Obbard, J.P. 
Lee, H.K. 
Keywords: Coastal waters
Organochlorine
Persistent organic pollutants
Pesticides
Polychlorinated biphenyls
Polycyclic aromatic hydrocarbons
Singapore
Issue Date: Oct-2003
Citation: Basheer, C., Obbard, J.P., Lee, H.K. (2003-10). Persistent organic pollutants in Singapore's coastal marine environment: Part I, seawater. Water, Air, and Soil Pollution 149 (1-4) : 295-313. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1025689600993
Abstract: Persistent organic pollutants (POPs) continue to receive widespread attention as harmful contaminants in the global environment. Increasingly, there have been concerns regarding adverse effects on marine wildlife due to the potential of POPs to induce adverse health effects, including the disruption of endocrine systems. Marine water samples within one kilometer of the coastline of Singapore were analysed to determine prevalent concentrations of a range of persistent organic pollutants (POPs). Samples were collected from 0.5 m and mid-depth (approximately 14 m depth) at twenty-two locations. POPs analysed are classed as USEPA priority pollutants, and included: sixteen polycyclic aromatic hydrocarbons (PAHs); eight polychlorinated biphenyls (PCBs); and twelve organochlorine pesticides (OCPs). Total PAH concentrations varied from 88.44 to 1419.57 ng 1-1 at the surface, and 129.78 to 940.41 ng 1-1 at mid-depth. Total OCP concentrations varied between 4.90 ng 1-1 to 22.04 ng 1-1 at surface, and 4.09 to 18.05 ng 1-1 at mid-depth. Total PCB concentrations varied from 0.22 ng 1-1 to 20.41 ng 1-1 at surface and 0.4 to 10.79 ng 1-1 at mid-depth. In general, the distribution profile shows that the surface concentrations of POPs are higher than at mid depth. Concentrations of PAHs were considered higher than reported levels for several other countries, whereas levels of OCPs and PCBs are generally lower than reported levels for other Asian countries.
Source Title: Water, Air, and Soil Pollution
URI: http://scholarbank.nus.edu.sg/handle/10635/92219
ISSN: 00496979
DOI: 10.1023/A:1025689600993
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