Anthropogenic Pb contribution in soils of Southeast China estimated by Pb isotopic ratios

被引：8

作者：

Li, Jianwu ^{[1
]}

Hao, Guoshuang ^{[3
]}

Wang, Xudong ^{[1
]}

Ruan, Li ^{[2
,4
]}

Zhou, Jinjie ^{[5
]}

机构：

[1] Zhejiang A&F Univ, Key Lab Soil Contaminat Bioremediat Zhejiang Prov, Hangzhou 311300, Peoples R China

[2] Chinese Acad Agr Sci, Natl Ctr Tea Improvement, Tea Res Inst, Hangzhou 310008, Peoples R China

[3] Jiande Agr Technol Extens Ctr, Hangzhou 311600, Peoples R China

[4] Chinese Acad Sci, Soil Res Inst, Nanjing 210008, Peoples R China

[5] Peoples Govt Yan Tan Town, Wenzhou 325100, Peoples R China

来源：

SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期

关键词：

BLOOD LEAD LEVELS; ATMOSPHERIC LEAD; URBAN SOILS; CONTAMINATION; SIGNATURES; CHILDREN; DUST; SR; ND; ENVIRONMENT;

D O I：

10.1038/s41598-020-79203-3

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Isotopic ratios were used to identify the source of Lead (Pb) contamination in rural soils from Southeast China. Enrichment of Pb in surface soils was detected from three sampling locations, with the Pb-206/Pb-207 ratio indicating recent anthropogenic input. The Pb-206/Pb-207 ratio from deeper soil profiles reflected the ratio from parent basalt. Mass fractions of anthropogenic-derived Pb for soil samples in the upper profiles was as high as 50%, implying that surface soils in the current study were impacted by anthropogenic activity. The Pb-206/Pb-207 and (PbPb)-Pb-208-Pb-/206 ratios were similar to anthropogenic sources including the combustion of coal, which has been common practice in the region for 2500 years. Considering the relatively short history of petroleum use in this area and the rural location of soils, anthropogenic Pb source from coal burning was considered to be the main cause of lead pollution.

引用

页数：7

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