Evaluation of cadmium (Cd) transfer from paddy soil to rice (Oryza sativa L.) using DGT in comparison with conventional chemical methods: derivation of models to predict Cd accumulation in rice grains

• Published in: Environmental science and pollution research international 2020-05, Vol.27 (13), p.14953-14962
• Main Authors: Xiao, Wendan, Ye, Xuezhu, Zhu, Zhiqiang, Zhang, Qi, Zhao, Shouping, Chen, De, Fang, Xiaoman, Gao, Na, Hu, Jing
• Format: Article
• Language: English
• Subjects: Abundance; Accumulation; Aeration; Aquatic Pollution; Arsenates; Arsenic; Arsenite; Atmospheric Protection/Air Quality Control/Air Pollution; Bioavailability; Cadmium; Calcium chloride; Contamination; Correlation analysis; Crop production; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental science; Food quality; Food safety; Genotypes; Hydrogen; Oryza sativa; Oxygenation; Phosphate; Phosphate transporter; Prediction models; Proteins; Research Article; Rhizosphere; Rice; Rice fields; Roots; Soil properties; Speciation; Thin films; Waste Water Technology; Water Management; Water Pollution Control
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-020-07976-1

The consumption of rice contaminated with soil cadmium (Cd) threatens human health. It is essential to ensure the production of rice that meets food quality standards. Therefore, a large-scale field survey was conducted in Zhejiang province, southeastern China, to investigate the relationship between Cd accumulation in rice grains and Cd bioavailability in soil, and thus to establish a model to predict Cd contents in rice grains based on soil properties. For this purpose, a total of 156 paired rice and soil samples were collected. Pearson’s correlation analysis revealed that Cd measurements obtained by diffusive gradient in thin films (DGT) had a higher correlation ( r  = 0.818, p