基于APCS-MLR受体模型的弹药销毁场土壤重金属源解析  

Analysis of heavy metal sources in soil of ammunition destruction site based on APCS-MLR receptor model

作　　者：毕永顺 朱勇兵 刘祖文[1,3] 赵三平 张言 聂果 郇正来 田帅 左华伟[1] BI Yongshun;ZHU Yongbing;LIU Zuwen;ZHAO Sanping;ZHANG Yan;NIE Guo;HUAN Zhenglai;TIAN Shuai;ZUO Huawei(Ganzhou key laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and Technology,Ganzhou,341000,China;National Key Laboratory of Muclear Biological and Chemical Disaster Protection,Beijing,102205,China;School of Hydraulic and Ecological Engineering,Nanchang Institute of Technology,Nanchang,330099,China)

机构地区：[1]江西理工大学赣州市流域污染模拟与控制重点实验室,赣州341000 [2]国民核生化灾害防护国家重点实验室,北京102205 [3]南昌工程学院水利与生态工程学院,南昌330099

出　　处：《环境化学》2024年第7期2313-2324,共12页Environmental Chemistry

基　　金：国家自然科学基金(52160019);国家重点研发计划(2018YFC1801101)资助.

摘　　要：为了掌握弹药销毁场重金属污染状况与来源,以山西某典型弹药销毁场为例,对该销毁场39个表层土壤重金属(Cr、Ni、Cu、Zn、As、Cd、Sb、Pb)的污染状况、分布特征与污染来源进行评价与分析.结果表明,弹壳堆放区表层土壤重金属Cr、Ni、Cu、Zn、As、Cd、Sb、Pb的平均含量分别为45.57、23.43、325.54、265.43、9.53、0.42、304.17、13174.29 mg·kg^(-1),其余区域表层土壤重金属Cr、Ni、Cu、Zn、As、Cd、Sb、Pb的平均含量分别为102.09、26.75、1137.18、3007.13、7.71、0.95、70.65、2894.97 mg·kg^(-1),均高于山西省背景值.污染指数评价结果表明,Pb、Zn、Cu、Sb和Cd的累积程度较高.研究区土壤重金属生态危害指数为2653.35,达到极高生态风险水平.绝对主成分得分-多元线性回归模型(APCS-MLR)表明,Ni、Cd、Zn、Cr和Cu的来源主要为混合源,贡献率为72.94%,Pb和Sb的主要来源是销毁源,贡献率为53.99%,自然源对As贡献率最大,为44.63%.In order to grasp the pollution status and sources of heavy metals in ammunition destruction sites,the pollution status,distribution characteristics and pollution sources of 39 surface soil heavy metals(Cr,Ni,Cu,Zn,As,Cd,Sb,Pb)in this destruction site were evaluated and analyzed,taking a typical ammunition destruction site in Shanxi as an example.The results showed that the average contents of the surface soil heavy metals Cr,Ni,Cu,Zn,As,Cd,Sb and Pb in the shell dumping area were 45.57,23.43,325.54,265.43,9.53,0.42,304.17,13174.29 mg·kg^(-1),respectively,while the average contents of the surface soil heavy metals Cr,Ni,Cu,Zn,As,Cd,Sb and Pb in the rest of the area were 45.57,23.43,325.54,265.43,9.53,0.42,304.17,13174.29 mg·kg^(-1),respectively,As,Cd,Sb and Pb were 102.09,26.75,1137.18,3007.13,7.71,0.95,70.65,2894.97 mg·kg^(-1) respectively,which were all higher than the background values in Shanxi Province.The results of the pollution index evaluation showed that the accumulation of Pb,Zn,Cu,Sb and Cd was high.The ecological hazard index for soil heavy metals in the study area was 2653.35,reaching a very high ecological risk level.The absolute principal component score-multiple linear regression model(APCS-MLR)showed that the sources of Ni,Cd,Zn,Cr and Cu were mainly mixed sources with a contribution of 72.94%,the main sources of Pb and Sb were destruction sources with a contribution of 53.99%,and natural sources contributed the most to As with a contribution of 44.63%.

关 键 词：弹药销毁场 重金属 污染特征 潜在生态风险 APCS-MLR受体模型 

分 类 号：X-1[环境科学与工程] O6[理学—化学]