http://scholars.ntou.edu.tw/handle/123456789/4218
Title: | Occurrence and distribution of anthropogenic persistent organic pollutants in coastal sediments and mud shrimps from the wetland of central Taiwan | Authors: | Das, Shagnika Aria, Andres Cheng, Jing-O Souissi, Sami Hwang, Jiang-Shiou Ko, Fung-Chi |
Keywords: | POLYCYCLIC AROMATIC-HYDROCARBONS;POLYBROMINATED DIPHENYL ETHERS;POLYCHLORINATED-BIPHENYLS PCBS;GAO-PING RIVER;ORGANOCHLORINE PESTICIDES;SURFACE SEDIMENTS;SOURCE APPORTIONMENT;CARBONACEOUS MATERIALS;YANGTZE ESTUARY;DANSHUI RIVER | Issue Date: | 9-Jan-2020 | Publisher: | PUBLIC LIBRARY SCIENCE | Journal Volume: | 15 | Journal Issue: | 1 | Source: | PLOS ONE | Abstract: | Sediment profile and mud shrimp (Austinogebia edulis) from the coastal wetland of central Taiwan in 2017 and 2018 were analyzed for concentration, source, and composition of persistent organic pollutants (POPs) including polycyclic aromatic hydrocarbon (PAHs), polybrominated diphenyl ethers (PBDEs), organochlorine pesticides (OCPs; DDT and HCB), and polychlorinated biphenyls (PCBs). Sediment profiling indicated PAH concentrations reaching 254.38 ng/g dw in areas near industrial areas and PAH concentrations of 41.8 and 58.42 ng/g dw in sampling areas further from industrial areas, suggesting that the determining factor for spatial distribution of POPs might be proximity to contaminant sources in industrial zones. Based on molecular indices, PAHs were substantially of both pyrolytic and petrogenic origins. The main sources for PCBs were Aroclor 1016 and 1260 and the congener BDE-209 was the dominant component among PBDE congeners. While we were unable to obtain live mud shrimp samples from the heavily contaminated areas, in samples from less contaminated areas, the risk assessment on mud shrimp still illustrated a borderline threat, with DDT concentrations almost reaching standardized values of Effects Range-Low (ERL). Bioaccumulation factors for DDTs and PCBs (17.33 and 54.59, respectively) were higher than other POPs in this study. Further study is essential to assess and understand the impact of these chemicals on the wetland ecosystem near this heavily industrialized area. |
URI: | http://scholars.ntou.edu.tw/handle/123456789/4218 | ISSN: | 1932-6203 | DOI: | 10.1371/journal.pone.0227367 |
Appears in Collections: | 海洋生物研究所 11 SUSTAINABLE CITIES & COMMUNITIES 12 RESPONSIBLE CONSUMPTION & PRODUCTION 15 LIFE ON LAND |
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