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Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms
The improper stacking of chromium (Cr) slag poses a great threat to the environment and human health. The toxicity of Cr in soil is not only related to its total amount, but also to its fractions. A simulated experiment was conducted in laboratory to assess the environmental risk of Cr fractions mig...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215348/ https://www.ncbi.nlm.nih.gov/pubmed/32326110 http://dx.doi.org/10.3390/ijerph17082835 |
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author | Zhang, Siyuan Hao, Xiaodong Tang, Jiahui Hu, Jin Deng, Yan Xu, Menglong Zhu, Ping Tao, Jiemeng Liang, Yili Yin, Huaqun Jiang, Luhua Liu, Xueduan Liu, Hongwei |
author_facet | Zhang, Siyuan Hao, Xiaodong Tang, Jiahui Hu, Jin Deng, Yan Xu, Menglong Zhu, Ping Tao, Jiemeng Liang, Yili Yin, Huaqun Jiang, Luhua Liu, Xueduan Liu, Hongwei |
author_sort | Zhang, Siyuan |
collection | PubMed |
description | The improper stacking of chromium (Cr) slag poses a great threat to the environment and human health. The toxicity of Cr in soil is not only related to its total amount, but also to its fractions. A simulated experiment was conducted in laboratory to assess the environmental risk of Cr fractions migration and distribution in red soil. The results showed the content of acid-soluble and reducible Cr significantly decreased (P < 0.05) in top layer but increased in middle and substratum layers over time. This indicated that acid-soluble and reducible Cr migrated downward with time and the relative mobility of acid-soluble Cr (0.038 mg/kg·d·m) was higher than that of reducible Cr (0.028 mg/kg·d·m). Furthermore, correlation analysis between microbial community and chromium fraction showed the relative abundance of Lysobacter, Flavihumibacter, Flavisolbacter, and Altererythrobacter was significantly (P < 0.05) correlated with acid-soluble and reducible fractions. Thus, these microorganisms might be evaluators to assess the migration of acid-soluble and reducible fractions in red soil. In summary, this study provided a new comprehension on remediation of Cr-contaminated soil by monitoring the migration of acid-soluble and reducible fractions and the changes of related microbial groups. |
format | Online Article Text |
id | pubmed-7215348 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72153482020-05-18 Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms Zhang, Siyuan Hao, Xiaodong Tang, Jiahui Hu, Jin Deng, Yan Xu, Menglong Zhu, Ping Tao, Jiemeng Liang, Yili Yin, Huaqun Jiang, Luhua Liu, Xueduan Liu, Hongwei Int J Environ Res Public Health Article The improper stacking of chromium (Cr) slag poses a great threat to the environment and human health. The toxicity of Cr in soil is not only related to its total amount, but also to its fractions. A simulated experiment was conducted in laboratory to assess the environmental risk of Cr fractions migration and distribution in red soil. The results showed the content of acid-soluble and reducible Cr significantly decreased (P < 0.05) in top layer but increased in middle and substratum layers over time. This indicated that acid-soluble and reducible Cr migrated downward with time and the relative mobility of acid-soluble Cr (0.038 mg/kg·d·m) was higher than that of reducible Cr (0.028 mg/kg·d·m). Furthermore, correlation analysis between microbial community and chromium fraction showed the relative abundance of Lysobacter, Flavihumibacter, Flavisolbacter, and Altererythrobacter was significantly (P < 0.05) correlated with acid-soluble and reducible fractions. Thus, these microorganisms might be evaluators to assess the migration of acid-soluble and reducible fractions in red soil. In summary, this study provided a new comprehension on remediation of Cr-contaminated soil by monitoring the migration of acid-soluble and reducible fractions and the changes of related microbial groups. MDPI 2020-04-20 2020-04 /pmc/articles/PMC7215348/ /pubmed/32326110 http://dx.doi.org/10.3390/ijerph17082835 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Siyuan Hao, Xiaodong Tang, Jiahui Hu, Jin Deng, Yan Xu, Menglong Zhu, Ping Tao, Jiemeng Liang, Yili Yin, Huaqun Jiang, Luhua Liu, Xueduan Liu, Hongwei Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms |
title | Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms |
title_full | Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms |
title_fullStr | Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms |
title_full_unstemmed | Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms |
title_short | Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms |
title_sort | assessing chromium contamination in red soil: monitoring the migration of fractions and the change of related microorganisms |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215348/ https://www.ncbi.nlm.nih.gov/pubmed/32326110 http://dx.doi.org/10.3390/ijerph17082835 |
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