Selection of pollution-safe head cabbage: Interaction of multiple heavy metals in soil on bioaccumulation and transfer

Baobin Mi; Wei Xiao; Naimei Tu; Fangfang Wu

doi:10.1016/j.foodchem.2024.139615

Selection of pollution-safe head cabbage: Interaction of multiple heavy metals in soil on bioaccumulation and transfer

Food Chem. 2024 Sep 15:452:139615. doi: 10.1016/j.foodchem.2024.139615. Epub 2024 May 10.

Authors

Baobin Mi¹, Wei Xiao², Naimei Tu³, Fangfang Wu⁴

Affiliations

¹ College of Agronomy, School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China; Research Institute of Vegetables, Hunan Academy of Agricultural Sciences, Changsha 410125, China.
² Research Institute of Vegetables, Hunan Academy of Agricultural Sciences, Changsha 410125, China.
³ College of Agronomy, School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China. Electronic address: tnm505@163.com.
⁴ College of Agronomy, School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China. Electronic address: wufangfang@hunau.edu.cn.

PMID: 38754169
DOI: 10.1016/j.foodchem.2024.139615

Abstract

Screening for pollution-safe cultivars (PSCs) is a cost-effective strategy for reducing health risks of crops in heavy metal (HM)-contaminated soils. In this study, 13 head cabbages were grown in multi-HMs contaminated soil, and their accumulation characteristics, interaction of HM types, and health risks assessment using Monte Carlo simulation were examined. Results showed that the edible part of head cabbage is susceptible to HM contamination, with 84.62% of varieties polluted. The average bio-concentration ability of HMs in head cabbage was Cd> > Hg > Cr > As>Pb. Among five HMs, Cd and As contributed more to potential health risks (accounting for 20.8%-48.5%). Significant positive correlations were observed between HM accumulation and co-occurring HMs in soil. Genotypic variations in HM accumulation suggested the potential for reducing health risks through crop screening. G7 is a recommended variety for head cabbage cultivation in areas with multiple HM contamination, while G3 could serve as a suitable alternative for heavily Hg-contaminated soils.

Keywords: Crop screening; Head cabbage; Health risk; Interaction of heavy metals in soil; Multi-heavy metals polluted soil.

MeSH terms

Bioaccumulation*
Brassica* / chemistry
Brassica* / growth & development
Brassica* / metabolism
Food Contamination / analysis
Metals, Heavy* / analysis
Metals, Heavy* / metabolism
Soil / chemistry
Soil Pollutants* / analysis
Soil Pollutants* / chemistry
Soil Pollutants* / metabolism

Substances

Soil Pollutants
Metals, Heavy
Soil