从米粒到人的头发：评估孟加拉国纳辛格的饮食重金属暴露和健康风险

IF 11.3 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials Pub Date : 2025-06-12 DOI:10.1016/j.jhazmat.2025.138921

Khadeza Yasmin, Rana Roy, Wai Chin Li

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引用次数: 0

摘要

大米中的重金属污染会带来重大的健康风险，但对不同年龄和性别的全面评估，包括头发样本和饮食习惯，还很少见。本研究评估了孟加拉国Narsingdi地区土壤、大米、水和头发中的金属（液态）——铬（Cr）、镍（Ni）、铜（Cu）、锌（Zn）、砷（As）、镉（Cd）和铅（Pb），评估了与饮食习惯相关的健康风险。土壤中局部镉浓度占主导地位。水样超过安全标准。水稻籽粒（n=111）的平均浓度（mg/kg）为：Cr（0.83）、Ni（0.74）、Cu（6.44）、Zn（19.43）、As（0.16）、Cd（0.26）和Pb（2.47）。总的来说，60.4%的谷物超过了世界卫生组织建议的铬、铜、镉、镍和砷的限量。人发（n=101）的平均浓度（mg/kg）分别为Cr（2.58）、Ni（2.27）、Cu（26.75）、Zn（33.90）、As（0.85）、Cd（1.0）、Pb(9.93)，各年龄组差异显著。值得注意的是，50岁及50岁以上人群的金属含量高于年龄较小的人群，男性头发中的金属含量高于女性头发。双相关证实了强相关性(r >；0.90**)的土壤，粮食，水，和毛金属（液体）浓度。在不同的样品中，每种金属（液体）约有14%被主成分分析证实。将63名参与者的头发样本与其大米消费模式配对显示，大米消费与毛发金属浓度之间存在显著的正相关（p<0.001）。与较低的大米摄入量（≤350 g/天）相比，较高的大米摄入量（≥450 g/天）与毛发金属浓度升高有关。所有参与者的砷、镉、铅和铜均超过参考剂量，0-15岁儿童的风险最高。铅、砷和铜的危害指数均在1以上，致癌风险超过阈值（ILCR>0.0001）。这些结果强调迫切需要持续监测饮食习惯，以减少有害金属（类）的暴露。

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From Rice Grain to Human Hair: Assessing Dietary Heavy Metal Exposure and Health Risks in Narsingdi, Bangladesh

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From Rice Grain to Human Hair: Assessing Dietary Heavy Metal Exposure and Health Risks in Narsingdi, Bangladesh

Heavy metal contamination in rice poses significant health risks, yet comprehensive assessments across ages and genders, including hair samples and dietary habits, are rare. This study evaluates metal(loids)—chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), and lead (Pb)—in soil, rice, water, and hair from Narsingdi District, Bangladesh, assessing health risks linked to dietary habits. Localized Cd concentration in soil was dominant. Water samples exceeded safety guidelines. Rice grains (n=111) had mean concentrations (mg/kg): Cr (0.83), Ni (0.74), Cu (6.44), Zn (19.43), As (0.16), Cd (0.26), and Pb (2.47). Overall, 60.4% of the grains exceeded the WHO recommended limits for Cr, Cu, Cd, Ni, and As. The mean concentrations (mg/kg) of human hair (n=101) were Cr (2.58), Ni (2.27), Cu (26.75), Zn (33.90), As (0.85), Cd (1.0), and Pb (9.93), with significant differences across age groups. Notably, the 50 and above 50 aged groups contained higher metal(loids) than the smaller groups, together males contained higher metal(loids) in hair than females' hair. Pairwise Pearson correlation confirmed strong correlations (r > 0.90**) among soil, grain, water, and hair metal(loids) concentrations. Around 14% of each metal(loids) was confirmed by Principal Component Analysis among the different samples. Pairing 63 participants' hair samples with their rice consumption patterns showed a significant positive association between rice consumption and hair metal concentrations (p<0.001). Higher rice intake (≥450 g/day) was linked to elevated hair metal concentrations compared to lower rice intake (≤ 350 g/day). All participants exceeded reference doses for As, Cd, Pb, and Cu, with the highest risk in children aged 0-15. The Hazard Index ranked above 1 for Pb, As ≃ Cd, and Cu, while carcinogenic risk exceeded the threshold (ILCR>0.0001). These results emphasize the urgent need for ongoing monitoring of dietary habits to mitigate harmful metal(loids) exposure.

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来源期刊

Journal of Hazardous Materials 工程技术-工程：环境

CiteScore

25.40

自引率

5.90%

发文量

3059

审稿时长

58 days

期刊介绍： The Journal of Hazardous Materials serves as a global platform for promoting cutting-edge research in the field of Environmental Science and Engineering. Our publication features a wide range of articles, including full-length research papers, review articles, and perspectives, with the aim of enhancing our understanding of the dangers and risks associated with various materials concerning public health and the environment. It is important to note that the term "environmental contaminants" refers specifically to substances that pose hazardous effects through contamination, while excluding those that do not have such impacts on the environment or human health. Moreover, we emphasize the distinction between wastes and hazardous materials in order to provide further clarity on the scope of the journal. We have a keen interest in exploring specific compounds and microbial agents that have adverse effects on the environment.