Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China

Abstract Spatial distributions and sources of some commonly concerned heavy metal(loid)s (HMs, As, Ba, Cr, Co, Cu, Ni, Pb, Mn, Zn, and V) in topsoil of Mianyang city, a typical medium-sized emerging industrial city in Southwest China, were determined to explore the influences of anthropogenic activi...

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Main Authors: Huaming Du, Xinwei Lu
Format: Article
Language:English
Published: Nature Portfolio 2022-06-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-14695-9
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author Huaming Du
Xinwei Lu
author_facet Huaming Du
Xinwei Lu
author_sort Huaming Du
collection DOAJ
description Abstract Spatial distributions and sources of some commonly concerned heavy metal(loid)s (HMs, As, Ba, Cr, Co, Cu, Ni, Pb, Mn, Zn, and V) in topsoil of Mianyang city, a typical medium-sized emerging industrial city in Southwest China, were determined to explore the influences of anthropogenic activities on the urban environment. The contents of the 10 HMs in 101 topsoil samples were analyzed using an X-ray fluorescence spectrometer, and their sources were analyzed by positive matrix factorization and statistical analysis. The spatial distributions of the HMs and the source contributions were mapped using GIS technology. The results showed that the mean contents of Ba, Cr, Cu, and Zn in the topsoil were significantly higher than their background values. Industrial activities resulted in high contents of Ba, Zn, Cu, and Cr. As, Co, Ni, and V that primarily came from natural sources; Pb, Cr, Cu, and Zn were chiefly derived from a mixed source of industry and traffic; and Ba and Mn primarily originated from industrial sources. Natural sources, mixed sources, and industrial sources contributed 32.6%, 34.4%, and 33.0% of the total HM contents, respectively. Industrial sources and mixed sources of industry and traffic were the main anthropogenic sources of HMs in the urban topsoil and should be the focus of pollution control.
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spelling doaj.art-b85a4541062c4264adbeb1291040ecaa2022-12-22T03:36:46ZengNature PortfolioScientific Reports2045-23222022-06-0112111210.1038/s41598-022-14695-9Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest ChinaHuaming Du0Xinwei Lu1School of Resource and Environment Engineering, Mianyang Normal UniversityDepartment of Environmental Science, School of Geography and Tourism, Shaanxi Normal UniversityAbstract Spatial distributions and sources of some commonly concerned heavy metal(loid)s (HMs, As, Ba, Cr, Co, Cu, Ni, Pb, Mn, Zn, and V) in topsoil of Mianyang city, a typical medium-sized emerging industrial city in Southwest China, were determined to explore the influences of anthropogenic activities on the urban environment. The contents of the 10 HMs in 101 topsoil samples were analyzed using an X-ray fluorescence spectrometer, and their sources were analyzed by positive matrix factorization and statistical analysis. The spatial distributions of the HMs and the source contributions were mapped using GIS technology. The results showed that the mean contents of Ba, Cr, Cu, and Zn in the topsoil were significantly higher than their background values. Industrial activities resulted in high contents of Ba, Zn, Cu, and Cr. As, Co, Ni, and V that primarily came from natural sources; Pb, Cr, Cu, and Zn were chiefly derived from a mixed source of industry and traffic; and Ba and Mn primarily originated from industrial sources. Natural sources, mixed sources, and industrial sources contributed 32.6%, 34.4%, and 33.0% of the total HM contents, respectively. Industrial sources and mixed sources of industry and traffic were the main anthropogenic sources of HMs in the urban topsoil and should be the focus of pollution control.https://doi.org/10.1038/s41598-022-14695-9
spellingShingle Huaming Du
Xinwei Lu
Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China
Scientific Reports
title Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China
title_full Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China
title_fullStr Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China
title_full_unstemmed Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China
title_short Spatial distribution and source apportionment of heavy metal(loid)s in urban topsoil in Mianyang, Southwest China
title_sort spatial distribution and source apportionment of heavy metal loid s in urban topsoil in mianyang southwest china
url https://doi.org/10.1038/s41598-022-14695-9
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