文献类型：期刊文献

英文题名：Distribution, source diagnostics, and factors influencing polycyclic aromatic hydrocarbons in the Yellow River Delta wetland

作者：Cai, Yang[] Wang, Zecheng[] Cui, Lijuan[] Wang, Jinzhi[] Zuo, Xueyan[] Lei, Yinru[] Zhao, Xinsheng[] Zhai, Xiajie[] Li, Jing[] Li, Wei[1]

第一作者：Cai, Yang

通信作者：Li, W[1]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing 100091, Peoples R China; Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China

年份：2023

卷号：67

外文期刊名：REGIONAL STUDIES IN MARINE SCIENCE

收录：;Scopus(收录号：2-s2.0-85171440218);WOS:【SCI-EXPANDED(收录号:WOS:001093154900001)】；

基金：Funding This work was supported in part by the National Key R&D Program of China [grant number 2017YFC0506200] .

语种：英文

外文关键词：Polycyclic aromatic hydrocarbons; Yellow river delta; Soil physicochemical properties

摘要：Investigating polycyclic aromatic hydrocarbons (PAHs) in estuarine wetlands is crucial for protecting the ecological environment. In this study, we examined the distribution of PAHs in surface soil samples from the Yellow River Delta (YRD) wetland and identified their sources, pollution status, and influencing factors. The results indicate that the PAH concentrations in the YRD samples ranged from 14.1 to 47.1 ng/g (mean = 28.3 ng/g). Application of the isomeric ratios, principal component analysis, and the positive matrix factorization model indicated that the primary PAH pollution sources in the surface soil were oil pollution, vehicle emissions, and coal and biomass combustion. The distribution of PAHs in the surface soil was affected by vegetation type, pH, soil organic matter, soil water content, and soil grain size. Overall, the YRD exhibited a low pollution level, although continued monitoring is necessary to reduce the environmental impact of PAHs.(c) 2023 Elsevier B.V. All rights reserved.