Distribution and health risk of chromium in wheat grains at the national scale in China

文献类型： 外文期刊

第一作者： Liao, Xiudong

作者： Liao, Xiudong;Huang, Liang;Zhang, Liyang;Lu, Lin;Luo, Xugang;Luo, Dezhao;Luo, Wei;Luo, Wei;Luo, Wei

作者机构：

关键词： Trace element; Toxic Substance; Metal; Food; Crop; Exposure; Assessment

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：12.2； 五年影响因子：11.9 ）

ISSN： 0304-3894

年卷期： 2024 年 474 卷

页码：

收录情况： SCI

摘要： Chromium (Cr) pollution may threaten food safety in China. In this study, the concentration, pollution level, distribution, and non -cancer risk of Cr in wheat grains grown in 186 areas across 28 provinces in China were investigated. Results indicated that mean concentration of Cr was 0.28 +/- 2.5 mg/kg, dry mass (dm). Of the samples, 7.5 % were found to be polluted with Cr. The mean concentrations were in the following order: Northwest > Northeast > South > East > North > Southwest > Central China. Based on deterministic models, mean hazard quotient (HQ) values for adult males, adult females, and children were 0.11 +/- 3.4, 0.11 +/- 3.4, and 0.13 +/- 3.5, respectively with < 6 % of HQ values >= 1. Eleven sites in northern China were identified as hotspots, whereas Gansu Province and Northwestern China were labeled as priority provinces and regions for risk control. The mean HQ values estimated by probabilistic risk assessment were two times greater than those estimated using deterministic models. The risk probabilities for adult males, adult females, and children were 4.81 %, 3.78 %, and 6.55 %, respectively. This study provides valuable information on Cr pollution in wheat grains and its risks at a national scale in China.

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