Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.

Due to various human activities, soil quality under different land use patterns is deteriorating all over the world. This deterioration is very complex in the river irrigation area and is caused by multi-point and non-point source pollution and seasonal variation. Therefore, the characteristics and...

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Main Authors: Jun Zhang, Yu Gao, Ningning Yang, Enhua Dai, Minghang Yang, Zhoufeng Wang, Yani Geng
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0253294
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author Jun Zhang
Yu Gao
Ningning Yang
Enhua Dai
Minghang Yang
Zhoufeng Wang
Yani Geng
author_facet Jun Zhang
Yu Gao
Ningning Yang
Enhua Dai
Minghang Yang
Zhoufeng Wang
Yani Geng
author_sort Jun Zhang
collection DOAJ
description Due to various human activities, soil quality under different land use patterns is deteriorating all over the world. This deterioration is very complex in the river irrigation area and is caused by multi-point and non-point source pollution and seasonal variation. Therefore, the characteristics and sources of soil metal pollution in river irrigation area of Baoji city were analyzed. The contents of 8 metals were given by ICP-MS, in the soil samples. Statistical methods, geo-accumulation index (Igeo) and potential ecological risk index (RI) were conducted to evaluate the spatial distribution features, sources and ecological risks of metal contamination from the study area soil. Principal component analysis and cluster analysis were used to analyze the pollution sources of metal. The analysis showed that Cd is the most polluted, and human activities represented a great impact on the contents of Zn, Ni, Cu and Cd in soil, Cd post moderate-strong pollution and strong risk, Cd has a maximum Igeo value of 3.17. All rivers were at risk of moderate pollution levels in study. Among them, some rivers had even reached strong pollution level. Pollution caused by human activities was the most significant pollution source of metal in the research area soil.
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spelling doaj.art-8ce228bbd8ae492f957150ddd8b4660a2022-12-21T23:11:07ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01168e025329410.1371/journal.pone.0253294Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.Jun ZhangYu GaoNingning YangEnhua DaiMinghang YangZhoufeng WangYani GengDue to various human activities, soil quality under different land use patterns is deteriorating all over the world. This deterioration is very complex in the river irrigation area and is caused by multi-point and non-point source pollution and seasonal variation. Therefore, the characteristics and sources of soil metal pollution in river irrigation area of Baoji city were analyzed. The contents of 8 metals were given by ICP-MS, in the soil samples. Statistical methods, geo-accumulation index (Igeo) and potential ecological risk index (RI) were conducted to evaluate the spatial distribution features, sources and ecological risks of metal contamination from the study area soil. Principal component analysis and cluster analysis were used to analyze the pollution sources of metal. The analysis showed that Cd is the most polluted, and human activities represented a great impact on the contents of Zn, Ni, Cu and Cd in soil, Cd post moderate-strong pollution and strong risk, Cd has a maximum Igeo value of 3.17. All rivers were at risk of moderate pollution levels in study. Among them, some rivers had even reached strong pollution level. Pollution caused by human activities was the most significant pollution source of metal in the research area soil.https://doi.org/10.1371/journal.pone.0253294
spellingShingle Jun Zhang
Yu Gao
Ningning Yang
Enhua Dai
Minghang Yang
Zhoufeng Wang
Yani Geng
Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.
PLoS ONE
title Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.
title_full Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.
title_fullStr Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.
title_full_unstemmed Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.
title_short Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China.
title_sort ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from baoji china
url https://doi.org/10.1371/journal.pone.0253294
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