Chromium biogeochemical behaviour in soil-plant systems and remediation strategies: A critical review
文献类型： 外文期刊
作者： Ao, Ming 1 ; Chen, Xiaoting 1 ; Deng, Tenghaobo 2 ; Sun, Shengsheng 1 ; Tang, Yetao 1 ; Morel, Jean Louis 4 ; Qiu, Rongliang 1 ; Wang, Shizhong 1 ;
作者机构： 1.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China
2.Guangdong Acad Agr Sci, Publ Monitoring Ctr Agro Prod, Guangzhou 510640, Peoples R China
3.Sun Yat Sen Univ, Guangdong Prov Key Lab Environm Pollut Control &, Guangzhou 510006, Peoples R China
4.Univ Lorraine, Lab Sols & Environm, UMR 1120, INRAE, F-54518 Vandoeuvre Les Nancy, France
5.South China Agr Univ, Coll Nat Resources & Environm, Guangdong Lab Lingnan Modern Agr, Guangzhou 510642, Peoples R China
关键词： Chromium; Biogeochemical behaviour; Toxicity; Detoxification; Remediation
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：14.224； 五年影响因子：12.984 ）
ISSN： 0304-3894
年卷期： 2022 年 424 卷
页码：
收录情况： SCI
摘要： Chromium (Cr) is a toxic heavy metal that is heavily discharged into the soil environment due to its widespread use and mining. High Cr levels may pose toxic hazards to plants, animals and humans, and thus have attracted global attention. Recently, much progress has been made in elucidating the mechanisms of Cr uptake, transport and accumulation in soil-plant systems, aiming to reduce the toxicity and ecological risk of Cr in soil; however, these topics have not been critically reviewed and summarised to date. Accordingly, based on available data-especially from the last five years (2017-2021)-this review traces a plausible link among Cr sources, levels, chemical forms, and phytoavailability in soil; Cr accumulation and translocation in plants; and Cr phytotoxicity and detoxification in plants. Additionally, given the toxicity and hazard posed by Cr(VI) in soils and the application of reductant materials to reduce Cr(VI) to Cr(III) for the remediation of Cr(VI)-contaminated soils, the reduction and immobilisation mechanisms by organic and inorganic reductants are summarised. Finally, some priority research challenges concerning the biogeochemical behaviour of Cr in soil-plant systems are highlighted, as well as the environmental impacts resulting from the application of reductive materials and potential research prospects.
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