Abstract
This study describes the mobility and chemical fractionation of zinc (Zn) and cadmium (Cd) in eight calcareous soils of Fars province in Iran. A 15 mg kg-1 Zn of zinc sulfate (ZnSO4∙7H2O) and 15 mg∙kg-1 Cd as cadmium sulphate (CdSO4∙8H2O) were added to soils. There were 3 replicate beakers per treatment. After 2 months incubation time, the sequential extraction technique was used to determine the Cd and Zn concentration in Water soluble (Ws), exchangeable (Ex), iron and manganese oxides (Fe-MnOx), carbonates (Car), organic matter (OM) and residual (Res) forms. The result showed that Cd was mainly extracted in exchangeable fraction (27–32%), while the main portion of Zn was extracted in residual fraction (30–46%). The mean mobility factor (MF) was 58.4 and 22.7% for Cd and Zn, respectively. The higher mobility of Cd in soils indicated that Cd can be easily absorbed by plants and enter to our food chain.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
