Accumulation of As, Cd, and Pb in Sixteen Wheat Cultivars Grown in Contaminated Soils and Associated Health Risk Assessment

Guanghui Guo, Mei Lei, Yanwen Wang, Bo Song and Jun Yang
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Guanghui Guo: Institute of Geographic Sciences and Natural Resources Research, Beijing 100101, China
Mei Lei: Institute of Geographic Sciences and Natural Resources Research, Beijing 100101, China
Yanwen Wang: Institute of Geographic Sciences and Natural Resources Research, Beijing 100101, China
Bo Song: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Jun Yang: Institute of Geographic Sciences and Natural Resources Research, Beijing 100101, China

IJERPH, 2018, vol. 15, issue 11, 1-17

Abstract: This study investigated the accumulation of As, Cd, and Pb in 16 wheat cultivars and the associated health risks for the inhabitants of Jiyuan, China. The results indicated that the concentrations of As, Cd, and Pb decreased in the order of root > leaf > stem > grain. The concentrations of As, Cd, and Pb in wheat grains varied from 0.13 for Pingan8 to 0.34 mg kg −1 for Zhengmai7698, 0.10 for Luomai26 to 0.25 mg kg −1 for Zhengmai7698, and 0.12 for Zhoumai207 to 0.42 mg kg −1 for Zhengmai379, respectively. There were significant differences in the bioaccumulation factors of As, Cd, and Pb among the 16 wheat cultivars. Cd was more readily accumulated to higher levels than As and Pb in wheat. The Target Hazard Quotients (THQs) of Cd and Pb in the grains from 16 wheat cultivars were below 1, while As THQ exceeded 1. The lowest detrimental human health effects via wheat consumption were found in cultivar AY58 among the 16 wheat cultivars, with total THQs (TTHQs) of 1.82 for children and 1.60 for adults, suggesting that children absorb more heavy metals than adults and they are more vulnerable to the adverse effects of these metals.

Keywords: bioaccumulation factors; health risk; target hazard quotient; Triticum aestivum L. (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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