Selenium Application Decreases the Enrichment and Human Exposure Risk of Cadmium in the Leaf of Jute ( Corchorus capsularis L.) Planted in Uncontaminated Purple Soil

Dan Liu, Lei Tao, Xiang Li, Chunmei Xiong, Xiaoxia Yang, Qingyu Nie and Junjie Lin
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Dan Liu: College of Agriculture and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, China
Lei Tao: Chongqing Key Laboratory of Water Quality Evolution and Pollution Control in Three Gorges Reservoir Area, Chongqing Three Gorges University, Chongqing 404100, China
Xiang Li: College of Agriculture and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, China
Chunmei Xiong: College of Agriculture and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, China
Xiaoxia Yang: Institute of Agricultural Quality Standards and Testing Technology, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China
Qingyu Nie: College of Agriculture and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, China
Junjie Lin: Chongqing Key Laboratory of Water Quality Evolution and Pollution Control in Three Gorges Reservoir Area, Chongqing Three Gorges University, Chongqing 404100, China

Sustainability, 2022, vol. 14, issue 15, 1-7

Abstract: The effects of soil selenium (Se) application on the enrichment and human exposure risk of heavy metals in the jute ( Corchorus capsularis L.) leaf have attracted extensive attention. The jute was planted with or without soil Se addition for 265 days. The jute leaf was harvested seven times during the experiment to determine the content of lead (Pb), cadmium (Cd), and Se. The results showed that the enrichment ability ranked Cd > Se > Pb. Cd in the jute leaf exceeded the average pollutant limit in GB2762-2017 by 1.37 times without Se application. The Se application is conducive to an increase of Se by 88.11–202.79%, contrarily reducing Cd by 35.40–38.32% and Pb by 9.58–26.57%. In general, the risk quotients (HQ) of Cd and Pb were decreased and less than 1 with Se treatment. Thus, the human exposure risk of Cd and Pb is negligible when ingesting the jute leaf via diet. It is suggested that Se can be applied to inhibit the enrichment of Cd and Pb in the jute production process to reduce the potential exposure risk of Cd and Pb to the human body and increase economic and nutritional values by raising Se levels in the jute leaf.

Keywords: Corchorus capsularis L.; heavy metal; lead; cadmium; selenium; human exposure risk (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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