Distribution characteristics, source analysis and risk assessment of organochlorine pesticides in Ny-Ålesund, Arctic

Yunchao Zheng; Bin Han; Xiuli Xu; Ang Liu; Li Zheng

doi:10.1016/j.marpolbul.2022.113862

Distribution characteristics, source analysis and risk assessment of organochlorine pesticides in Ny-Ålesund, Arctic

Mar Pollut Bull. 2022 Aug:181:113862. doi: 10.1016/j.marpolbul.2022.113862. Epub 2022 Jun 22.

Authors

Yunchao Zheng¹, Bin Han², Xiuli Xu³, Ang Liu⁴, Li Zheng⁵

Affiliations

¹ School of Ocean Sciences, China University of Geosciences, Beijing 100083, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
² Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China. Electronic address: hanbin@fio.org.cn.
³ School of Ocean Sciences, China University of Geosciences, Beijing 100083, China. Electronic address: xuxl@cugb.edu.cn.
⁴ Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.
⁵ Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.

PMID: 35751970
DOI: 10.1016/j.marpolbul.2022.113862

Abstract

The distribution characteristics, sources, and risk levels of organochlorine pesticides (OCPs) in Ny-Ålesund of the Arctic region during China's 10th Arctic expedition were studied in this paper. Results showed that the concentration of OCPs in the surface soil of the Ny-Ålesund region ranged from 0.59 ng·g^-1 to 3.87 ng·g^-1, with an average concentration of 2.22 ng·g^-1. Source analysis showed that the OCPs in the study area mainly originated from historical residues, and a certain degree of conversion between congeners of hexachlorocyclohexanes and dichlorodiphenyltrichloroethanes in the soil occurred due to environmental factors. Ecological risk assessment indicated that the study area was at a low ecological risk level, but the potential environmental impact of OCPs could not be neglected due to the specificity and sensitivity of the Arctic environment.

Keywords: Distribution characteristics; Ny-Ålesund; Organochlorine pesticides; Risk assessment; Source.

MeSH terms

China
Environmental Monitoring
Hydrocarbons, Chlorinated* / analysis
Pesticides* / analysis
Risk Assessment
Soil / chemistry

Substances

Hydrocarbons, Chlorinated
Pesticides
Soil