Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2022, Vol. 12 ›› Issue (4): 24-28.doi: 10.11923/j.issn.2095-4050.cjas2020-0284

Special Issue: 土壤重金属污染

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Form and Valence Evaluation of Heavy Metal Chromium in Soil: A Review

ZHAO Shaoting(), LI Jianmin, DU Yu   

  1. Agricultural Ecological Environment Construction Station of Shanxi, Taiyuan 030001, Shanxi, China
  • Received:2020-12-24 Revised:2021-03-28 Online:2022-04-20 Published:2022-05-19

Abstract:

Soil environmental quality standards in China have established the limit for total chromium content in soil. To understand the effects of heavy metal chromium on ecological environment and soil organism, it is necessary to analyze different forms and valences of chromium in detail. In this study, the occurrence form, and the migration and transformation of heavy metal chromium in soil were discussed, especially the determination methods of different forms and valences of chromium. Sequential extraction method is still the main method for form analysis of chromium in soil. Compared with the solid-liquid extraction method and the technology of chromium separation, enrichment and determination based on soil liquid samples, direct solid sample analysis does not require sample pretreatment and avoids the form transformation of the element. In the future, more rapid and simple methods for determining heavy metals in soil will be developed.

Key words: soil, heavy metal, chromium, form, valence, migration and transformation, determination method

CLC Number: