PMID- 35999757
OWN - NLM
STAT- MEDLINE
DCOM- 20221227
LR  - 20221227
IS  - 1090-2414 (Electronic)
IS  - 0147-6513 (Linking)
VI  - 242
DP  - 2022 Sep 1
TI  - Contamination and sources of polychlorinated naphthalenes in the surface 
      sediments of Chaobai River, China.
PG  - 113934
LID - S0147-6513(22)00774-6 [pii]
LID - 10.1016/j.ecoenv.2022.113934 [doi]
AB  - In aquatic systems, sediment is both a sink for persistent organic pollutants 
      (POPs) and a potential source of POPs release. Consequently, it is important to 
      understand the pollution characteristics and sources of polychlorinated 
      naphthalenes (PCNs) as POPs of Stockholm Convention in sediment for control of 
      the ecological risk. Atmospheric deposition is a potential source of PCNs in 
      sediment. However, there is no clear report on the contribution of atmospheric 
      deposition to PCNs in sediments. In this study, the Chaobai River in China was 
      selected because it is an important drinking water source that is not affected by 
      wastewater discharge. Surface sediments from the river were analyzed for 75 PCN 
      congeners by using high resolution gas chromatography combined with high 
      resolution mass spectrometry. The total PCNs concentration ranged from 54 to 2266 
      (mean: 402) pg/g. The toxic equivalent quantity of 19 PCNs in surface sediments 
      was 9.69 x 10(-2), and CN73, CN66/CN67, and CN63 had the largest contributions to 
      this value. Dichlorinated and trichlorinated naphthalenes were the dominant 
      homologs. The PCN data from the sediment samples in this study were combined with 
      data for PCNs in ambient air from a literature, which has a good match with this 
      study in both temporal and spatial scales. The contribution of atmospheric 
      deposition to PCNs in the surface sediment was evaluated by comparing congener 
      characteristics and correlation analysis. Our study indicated atmospheric 
      transportation and deposition are important pathways for transport of PCNs into 
      surface sediments.
CI  - Copyright (c) 2022 The Authors. Published by Elsevier Inc. All rights reserved.
FAU - Du, Yanjun
AU  - Du Y
AD  - Key Laboratory of Drinking Water Science and Technology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China; 
      University of Chinese Academy of Sciences, 100049 Beijing, China; National 
      Institute of Environmental Health, Chinese Center for Disease Control and 
      Prevention,100021 Beijing, China.
FAU - Xu, Xiong
AU  - Xu X
AD  - Key Laboratory of Drinking Water Science and Technology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China.
FAU - Liu, Quanzhen
AU  - Liu Q
AD  - Key Laboratory of Drinking Water Science and Technology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China; 
      University of Chinese Academy of Sciences, 100049 Beijing, China.
FAU - Lin, Lihua
AU  - Lin L
AD  - Key Laboratory of Drinking Water Science and Technology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China.
FAU - Wang, Donghong
AU  - Wang D
AD  - Key Laboratory of Drinking Water Science and Technology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China; 
      University of Chinese Academy of Sciences, 100049 Beijing, China. Electronic 
      address: dhwang@rcees.ac.cn.
LA  - eng
PT  - Journal Article
DEP - 20220804
PL  - Netherlands
TA  - Ecotoxicol Environ Saf
JT  - Ecotoxicology and environmental safety
JID - 7805381
RN  - 0 (Naphthalenes)
SB  - IM
MH  - China
MH  - Environmental Monitoring/methods
MH  - Gas Chromatography-Mass Spectrometry
MH  - *Naphthalenes/analysis
MH  - *Rivers/chemistry
OTO - NOTNLM
OT  - Atmospheric deposition
OT  - Ecological risk
OT  - Persistent organic pollutants
OT  - Water body
EDAT- 2022/08/25 06:00
MHDA- 2022/08/26 06:00
CRDT- 2022/08/24 01:15
PHST- 2022/04/26 00:00 [received]
PHST- 2022/07/26 00:00 [revised]
PHST- 2022/07/28 00:00 [accepted]
PHST- 2022/08/24 01:15 [entrez]
PHST- 2022/08/25 06:00 [pubmed]
PHST- 2022/08/26 06:00 [medline]
AID - S0147-6513(22)00774-6 [pii]
AID - 10.1016/j.ecoenv.2022.113934 [doi]
PST - ppublish
SO  - Ecotoxicol Environ Saf. 2022 Sep 1;242:113934. doi: 10.1016/j.ecoenv.2022.113934. 
      Epub 2022 Aug 4.