Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Effects of soil particle size on the adsorption, distribution and migration behaviors of heavy metal(loid)s in soil: a review

Abstract

In recent years, soil toxic heavy metal(loid) pollution has become a severe environmental problem worldwide. The migration and transformation of heavy metal(loid)s in soil are now hot topics in the field of environmental research. Soil particle size plays an important role in influencing the environmental behavior of heavy metal(loid)s in soil. This review collates and synthesizes research on the adsorption, distribution, and migration of heavy metal(loid)s in soil particles. There is no unified method for soil particle separation, as the purposes of the different research is different. Regardless of adsorption or distribution characteristics, fine soil particles generally showed a higher capacity to combine heavy metal(loid)s; however, certain research also observed the opposite phenomenon, that heavy metal(loid)s were more enriched in coarse particles. The adsorption and distribution of heavy metal(loid)s in soil particles were essentially determined by the physicochemical properties of the soil particles. Land use obviously affected the distribution of heavy metal(loid)s in soil particles. Organic matter had an important influence on the distribution and availability of heavy metal(loid)s in agricultural and forest soils, while for urban soils and sediment, clay minerals or metal (hydr)oxides may play the dominant role. Preferential surface migration of fine particles during erosion processes did not always lead to the enrichment of heavy metal(loid)s in the lost soil. Further research is should be conducted to explore the relationships among soil aggregates, organic matter, heavy metal(loid)s and soil microorganisms; the association between the distribution and availability of heavy metal(loid)s and the properties of soil particles; and the migration patterns of heavy metal(loid)s in soil particles at different scales.

Back to tab navigation

Article information


Submitted
24 Apr 2020
Accepted
23 Jun 2020
First published
24 Jun 2020

Environ. Sci.: Processes Impacts, 2020, Accepted Manuscript
Article type
Critical Review

Effects of soil particle size on the adsorption, distribution and migration behaviors of heavy metal(loid)s in soil: a review

B. Huang, Z. Yuan, D. Li, M. Zheng, X. Nie and Y. Liao, Environ. Sci.: Processes Impacts, 2020, Accepted Manuscript , DOI: 10.1039/D0EM00189A

Social activity

Search articles by author

Spotlight

Advertisements