Occurrence of Trace Heavy Metals in Leaves of Urban Greening Plants in Fuxin, Northeast China: Spatial Distribution & Plant Purification Assessment

Qili Yang, Jing Guo, Dongli Wang, Yong Yu, Weili Dou, Zhiwen Liu, Qiaohong Xu and Gang Lv
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Qili Yang: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China
Jing Guo: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China
Dongli Wang: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China
Yong Yu: Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130022, China
Weili Dou: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China
Zhiwen Liu: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China
Qiaohong Xu: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China
Gang Lv: School of Environmental Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, China

Sustainability, 2022, vol. 14, issue 14, 1-10

Abstract: Trace element analysis, in the leaves of five kinds of greening plants ( Buxus , Picea , Pine , Juniperus and Platycladus ) from eight uniform distribution sites in Fuxin, a typical traditional resource-based city in northeast China, was carried out to study the purification ability difference of urban greening plants and spatial distribution tendency of heavy metal elements in the whole city area. In terms of the purification ability analysis, Platycladus had a better environmental purification capacity for Cd, As, Pb and Cr. Juniperus also showed a certain environmental purification potential for As, Pb and Cu. Furthermore, Mn has the highest point mean of element content in all plants, ranging from 64.044–114.290 µg/g, and the MnPA content of Buxus and Juniperus was 60% higher than that of the other three plants, which showed a better Mn purification effect. In terms of the spatial distribution tendency analysis, point pollution source location and the urban climate factors (mainly for the wind factor) were the main controlling factors. However, the specificity of Mn distribution suggested that its polluting behavior had a close relation with minerals transportation during exploiting and transferring in the city’s coal mining industry in the past.

Keywords: environmental indicator; ICP-MS; source analysis; urban greening plant (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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