文献类型：期刊文献

英文题名：Level and risk assessment of selected polychlorinated biphenyls, polycyclic aromatic hydrocarbons, and organochlorine pesticides in walnut and soil

作者：Li, Qingyang[1] Xiao, Pengfei[2] Shen, Danyu[1] Huang, Yunmei[2] Shi, Xiang[1] Li, Xianbin[3] Liu, Yihua[1]

第一作者：Li, Qingyang

通信作者：Liu, YH[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Peoples R China;[2]Zhejiang A&F Univ, JiYang Coll, Zhuji 311800, Peoples R China;[3]Minist Agr & Rural Affairs, Inst Control Agrochem, Beijing 100125, Peoples R China

年份：0

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：;Scopus(收录号：2-s2.0-85138826647);WOS:【SCI-EXPANDED(收录号:WOS:000860958100005)】；

基金：This study was supported by the Fundamental Research Funds of CAF (CAFYBB2019QD002 and CAFYBB2017QC002).

语种：英文

外文关键词：Hydrophobic organic contaminants (HOCs); Walnut; Soil; Risk assessment; Safety

摘要：It is unknown how hydrophobic organic contaminants (HOCs) are distributed and how they affect the environment in high-fat nuts and their planted soil. The profile of HOCs in walnut/soil system was investigated in this study. Polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and organochlorine pesticides (OCPs) were found in walnuts at concentrations of 0.67, 127, and 116 mu g/kg, respectively. The target hazard quotients (THQ) of 17 PCBs, 16 PAHs, and 21 OCPs from walnut consumption by human were 0.06, 0.01, and 0.11, respectively. The highest concentrations of HOC in the soil were found in Nap and toxaphene, with concentrations of 2580 and 902 mu g/kg, respectively. Bioaccumulation factors (BAF) and biota-sediment accumulation factors (BSAF) in walnuts were ranged from <0.01 to 7.04 and <0.01 to 3.83, respectively. Concentrations of most individual HOCs in soil samples were significantly correlated with soil organic matter (SOM) (p < 0.01) and minerals (p < 0.01), with maximum correlation coefficients of 0.70 (OM-PCB81) and -0.84 (P-BaP). According to this study, high-fat walnuts do not have a high bioaccumulation of HOCs from soil, and the risk of consumption is within the safe range.