来自中国典型地区的茶中的酸盐的发生,空间分布和风险评估
Yan Li1,2, Shaohua Li2,3, Jun Ren4
1Department of Sanitary Technology, West China School of Public Health, Sichuan University, Chengdu, 610041, China.
Current research in food science
|October 12, 2023
概括
在所有中国茶样中都发现过酸盐,中国中部的含量更高. 虽然茶饮食不构成直接的健康风险,但建议对高茶饮食消费者进行进一步的饮食暴露评估.
科学领域:
- 环境化学环境化学
- 食品安全 食品安全
- 毒理学 毒理学 毒理学
背景情况:
- 甲酸盐是一种持久性环境污染物,广泛存在.
- 由于出口检测,公众对中国茶中的甲酸盐存在担忧.
- 数据有限,需要对茶中的酸盐含量和健康风险进行调查.
研究的目的:
- 调查中国茶叶中甲酸盐的存在和空间分布.
- 评估与饮茶中含有甲酸盐的暴露相关的人类健康风险.
- 为监管和公共卫生考虑提供数据.
主要方法:
- 分析了来自中国13个主要茶叶生产地区的747个茶样.
- 使用已确定的分析技术量化甲酸盐.
- 使用确定性和概率方法进行人类暴露和健康风险评估.
主要成果:
- 在100%的茶样中检测到甲酸盐,平均度为163μg/kg.
- 甲酸盐含量存在显著的空间变化,特别是在中国中部更高.
- 计算的平均慢性每日摄入量 (CDI) 是0.0183μg/kg bw/day,高消费者达到0.1514-0.4675μg/kg bw/day.
结论:
- 在中国茶叶中,化物污染无处不在.
- 目前的茶叶消费水平对健康风险很低,低于安全门.
- 对高消费者的潜在风险在考虑联合饮食暴露时需要注意.
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