TY - JOUR
T1 - Bioaccumulation and trophic magnification of short chain chlorinated paraffins in marine organisms from East China Sea
AU - Hu, Hongmei
AU - Qu, Jianli
AU - Zhao, Meirong
AU - Wu, Pengfei
AU - Zhu, Wenbin
AU - Zhou, Yongdong
AU - Jin, Hangbiao
N1 - Funding information:
This study was supported by National Key Research and Development Program of China (2020YFD0900804), the Science and Technology Project of Zhoushan, China (2021C31011), Natural Science Foundation of Zhejiang Province (YQ 202043985), and National Natural Science Foundation of China (21806139; U20A20134).
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/12
Y1 - 2021/12
N2 - As new persistent organic pollutants, short chain chlorinated paraffins (SCCPs) have recently received particular attention. However, knowledge on their bioaccumulation and trophic magnification in marine organisms from East China Sea (ECS) is still scare. In this study, we investigated the concentrations of SCCPs in seawater (n = 15) and marine organisms (n = 88) collected from ECS. The total concentrations of SCCPs (∑SCCPs) ranged from 12.5 to 242 ng/L in seawater and from 12.8 to 1819 ng/g wet weight (ww) in organisms. C10–11 SCCPs and Cl5–7 SCCPs were the predominant homologues in all samples, with the mean proportions of 70 ± 6.5% and 80 ± 7.8% in seawater, as well as 52–77% and 61–84% in marine organisms, respectively. The logarithm bioaccumulation factor (log BAF) values of ∑SCCPs were in the range of 2.04–3.79 in zooplankton, fish, shrimp, crab, shellfish, snail, and cephalopod. The log BAF values of SCCP homologues (1.33–4.75) increased significantly with the increase of their logarithm octanol–water partition coefficients (log KOW) values, indicating that hydrophobicity is the major factor controlling the bioaccumulation of SCCPs. The trophic magnification factor (TMF) value of ∑SCCPs was calculated to be 3.98, indicating the potential trophic magnification of SCCPs in this marine food web from ECS. A slightly increasing trend was observed between the TMF values of SCCP homologues and their log KOW values. Overall, for the first time, this study systematically examined the bioaccumulation and trophic magnification of SCCPs in the marine food web from East China Sea.
AB - As new persistent organic pollutants, short chain chlorinated paraffins (SCCPs) have recently received particular attention. However, knowledge on their bioaccumulation and trophic magnification in marine organisms from East China Sea (ECS) is still scare. In this study, we investigated the concentrations of SCCPs in seawater (n = 15) and marine organisms (n = 88) collected from ECS. The total concentrations of SCCPs (∑SCCPs) ranged from 12.5 to 242 ng/L in seawater and from 12.8 to 1819 ng/g wet weight (ww) in organisms. C10–11 SCCPs and Cl5–7 SCCPs were the predominant homologues in all samples, with the mean proportions of 70 ± 6.5% and 80 ± 7.8% in seawater, as well as 52–77% and 61–84% in marine organisms, respectively. The logarithm bioaccumulation factor (log BAF) values of ∑SCCPs were in the range of 2.04–3.79 in zooplankton, fish, shrimp, crab, shellfish, snail, and cephalopod. The log BAF values of SCCP homologues (1.33–4.75) increased significantly with the increase of their logarithm octanol–water partition coefficients (log KOW) values, indicating that hydrophobicity is the major factor controlling the bioaccumulation of SCCPs. The trophic magnification factor (TMF) value of ∑SCCPs was calculated to be 3.98, indicating the potential trophic magnification of SCCPs in this marine food web from ECS. A slightly increasing trend was observed between the TMF values of SCCP homologues and their log KOW values. Overall, for the first time, this study systematically examined the bioaccumulation and trophic magnification of SCCPs in the marine food web from East China Sea.
KW - Bioaccumulation
KW - East China Sea
KW - Marine organisms
KW - Short chain chlorinated paraffins
KW - Trophic magnification
UR - http://www.scopus.com/inward/record.url?scp=85117161213&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2021.113049
DO - 10.1016/j.marpolbul.2021.113049
M3 - Journal article
C2 - 34673427
AN - SCOPUS:85117161213
SN - 0025-326X
VL - 173, Part B
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 113049
ER -
