Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewedConventional

Chemical speciation of trace metals in atmospheric deposition and impacts on soil geochemistry and vegetable bioaccumulation near a large copper smelter in China

Hailong Liu, Jun Zhou, Min Li, Daniel Obrist, Xiaozhi Wang, Jing Zhou

Journal of Hazardous Materials · 2021

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Summary

This 2021 field study integrated atmospheric geochemistry with soil and crop contamination science to examine trace metal transfer from a large copper smelter in China to agricultural soils and vegetable crops. By characterising metal speciation in atmospheric deposition and subsequent soil-plant uptake pathways, the research provides mechanistic insight into food safety risks in smelter-adjacent agricultural regions. The findings suggest that the chemical form of deposited metals influences soil geochemistry and the extent of metal bioaccumulation in vegetables.

Regional applicability

Whilst the UK has limited active smelting near agricultural land, the methodological approach to tracing metal speciation through atmospheric-soil-crop pathways would be relevant to assessing food safety near legacy mining or industrial sites. The study's findings on speciation-dependent bioavailability could inform soil remediation strategies in contaminated UK agricultural areas.

Key measures

Chemical speciation of trace metals in atmospheric deposition; soil geochemical composition; trace metal concentrations and speciation in vegetable tissues; bioaccumulation factors

Outcomes reported

The study characterised the chemical speciation of trace metals in atmospheric deposition from a copper smelter and traced their transfer pathways through soil to vegetable crops. It measured the bioavailability and bioaccumulation of metals in agricultural produce adjacent to the smelting facility.

Theme
Nutrition & health
Subject
Pesticides, contaminants & food safety
Study type
Research
Study design
Field study
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Horticulture
DOI
10.1016/j.jhazmat.2021.125346
Catalogue ID
SNmov5ix44-am664y

Topic tags

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