PMID- 27031806 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20221207 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 153 DP - 2016 Jun TI - Decline in sediment contamination by persistent toxic substances from the outfall of wastewater treatment plant: Effectiveness of legislative actions in Korea. PG - 426-35 LID - S0045-6535(16)30393-9 [pii] LID - 10.1016/j.chemosphere.2016.03.075 [doi] AB - Legacy and new persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) were measured in sediments near a wastewater treatment plant (WWTP) outfall in a semi-enclosed bay, to investigate the current contamination and temporal changes in these contaminants associated with regulation activities in Korea. The concentrations of most of the POPs showed clear decreasing trends with an increase in the distance from the WWTP outfall, indicating that the WWTP discharges greatly contributed to the sediment contamination by POPs. Highly significant correlations were found for most of the POPs, indicating a common source for sediment contamination. Significant declines were found in the concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (DL-PCBs), polybrominated diphenyl ethers (PBDEs), and PAHs in the sediments collected between 2005 and 2013. This result suggested that legislative actions (regulation of the PCDD/Fs in flue gas, total pollution load management, and whole effluent toxicity for WWTP discharges) and change of fuels, were likely to be effective at reducing the POP and PAH levels in sediments during the past several years. The different compositional profiles of the PCDD/Fs and PAHs between 2005 and 2013 implied changes in and/or additional sources of these contaminants. Despite a decline in the PCDD/Fs over time, the present levels of PCDD/Fs in the sediment exceeded some of the sediment quality guidelines suggested by the National Oceanic and Atmospheric Administration. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Jin, Xiangzi AU - Jin X AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Lee, Hyun-Kyung AU - Lee HK AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Badejo, Abimbola C AU - Badejo AC AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Lee, Sang-Yoon AU - Lee SY AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Shen, Aihua AU - Shen A AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Lee, Sunggyu AU - Lee S AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Jeong, Yunsun AU - Jeong Y AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. FAU - Choi, Minkyu AU - Choi M AD - Marine Environment Research Division, National Institute of Fisheries Science (NIFS), Busan 619-705, Republic of Korea. FAU - Moon, Hyo-Bang AU - Moon HB AD - Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea. Electronic address: hbmoon@hanyang.ac.kr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160329 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Waste Water) SB - IM MH - Environmental Monitoring MH - Environmental Restoration and Remediation/*legislation & jurisprudence MH - Geologic Sediments/*analysis MH - Republic of Korea MH - *Waste Disposal, Fluid MH - Wastewater/analysis MH - Water Pollution, Chemical/*prevention & control OTO - NOTNLM OT - Guidelines OT - Legislative action OT - PBDEs OT - PCDDs OT - PCDFs EDAT- 2016/04/01 06:00 MHDA- 2016/12/15 06:00 CRDT- 2016/04/01 06:00 PHST- 2015/12/29 00:00 [received] PHST- 2016/03/13 00:00 [revised] PHST- 2016/03/16 00:00 [accepted] PHST- 2016/04/01 06:00 [entrez] PHST- 2016/04/01 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] AID - S0045-6535(16)30393-9 [pii] AID - 10.1016/j.chemosphere.2016.03.075 [doi] PST - ppublish SO - Chemosphere. 2016 Jun;153:426-35. doi: 10.1016/j.chemosphere.2016.03.075. Epub 2016 Mar 29.