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Contamination and spatial distribution of parabens, their metabolites and antimicrobials in sediment from Korean coastal waters

Title
Contamination and spatial distribution of parabens, their metabolites and antimicrobials in sediment from Korean coastal waters
Author
문효방
Keywords
Methyl paraben; 4-HB; Triclosan; Triclocarban; TOC
Issue Date
2019-09
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Citation
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, v. 180, Page. 185-191
Abstract
Synthetic antimicrobials known as parabens, triclosan (TCS), and triclocarban (TCC) are emerging environmental contaminants. Limited studies on these contaminants have been conducted in coastal environments. In our study, parabens, their metabolites, TCS, and TCC were measured in sediment collected along the Korean coast, to investigate contamination status, spatial distribution, and potential health risks to coastal environments. Methyl paraben and 4-hydroxybenzoic acid were detected in all sediment samples, suggesting widespread contamination. Total concentrations of parent parabens, their metabolites, TCS, and TCC ranged from 0.19 to 11.2 (mean: 2.40) ng/g dry weight, 9.65 to 480 (mean: 120) ng/g dry weight, and ˂ limit of quantification (LOQ)-6.10 (mean: 0.41) ng/g dry weight, and from ˂ LOQ-41.0 (mean: 2.78) ng/g dry weight, respectively. The overall contamination of parabens and antimicrobials in sediment was different from that reported for persistent organic pollutants due to different contamination sources among chemical groups. Significant correlation was found among target contaminants in sediment, suggesting the existence of a common source. Total organic carbon (TOC) was significantly correlated with the concentrations of target contaminants, implying a major factor for coastal distribution of parabens and antimicrobials. The concentrations of parabens and TCS measured in sediment did not exceed a hazard quotient (HQ), implying low potential health risks associated with exposure to these contaminants. This is the first study to report the nationwide distribution of parabens, their metabolites, and antimicrobials in the coastal environments of Korea.
URI
https://www.sciencedirect.com/science/article/pii/S0147651319305433http://repository.hanyang.ac.kr/handle/20.500.11754/120874
ISSN
0147-6513; 1090-2414
DOI
10.1016/j.ecoenv.2019.05.012
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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