印度大米中的微塑料污染:综合性表征和健康风险评估
Pinal S Bhavsar1, Mandeep B Solanki1, Yasuhito Shimada2
1Tarsadia Institute of Chemical Science, Uka Tarsadia University, Maliba Campus, Bardoli, Tarsadi, 394350 Surat, Gujarat, India.
Journal of hazardous materials
|November 10, 2024
概括
印度大米中存在微塑料 (MP),其含量因类型而异. 这项研究量化了MP污染,并估计了每日摄入量,突出了大米消费对人类健康的潜在暴露途径.
科学领域:
- 环境科学 环境科学
- 食品安全 食品安全
- 毒理学 毒理学 毒理学
背景情况:
- 微塑料 (MP) 污染是一个日益严重的全球问题.
- 了解大米等主食中的MP存在对于人类健康风险评估至关重要.
- 关于印度消费大米中MP污染的数据有限.
研究的目的:
- 调查印度大米中微塑料 (MP) 的丰度,分布,化学成分和暴露情况.
- 评估 MPs 在水中对人类健康的潜在影响.
- 为评估与 MPs 相关的健康风险提供基本数据.
主要方法:
- 立体显微镜,μ-福里埃变换红外光谱学和μ-拉曼光谱学被用来分析MP特征.
- 确定了MP的丰度,大小和类型 (聚乙烯,聚乙烯二甲,聚烯,聚胺).
- 计算了污染负载指数和估计每日摄入量 (EDI).
主要成果:
- 在所有大米样本中检测到微塑料,平均数量为30.3±8.61颗颗粒/100g.
- 聚乙烯和聚乙烯四甲酸是发现的占主导地位的MP类型.
- 印度男性,女性和儿童的估计每日摄入值分别为1.292,1.527和1.313颗粒/公斤/天.
结论:
- 消费大米代表了人类摄入微塑料的潜在途径.
- 根据污染负载指数,分析的印度大米样本中的MP污染被发现是最小的.
- 这项研究为评估通过食用大米接触微塑料对健康的影响提供了必要的数据.
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