全球鱼受到化多环芳的污染及其贸易诱导的风险转移
Jingqian Xie1, Ling Tao2, Qiang Wu3
1College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China; State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
这项研究在全球范围内在鱼中发现致癌的化多环芳 (HPAHs). 国际贸易显著增加了食用鱼的癌症风险,特别是在中国和墨西哥.
科学领域:
- 环境化学环境化学
- 食品安全 食品安全
- 海洋生物学 海洋生物学
背景情况:
- 鱼是全球贸易的粮食来源.
- 人们对鱼中致癌性化多环芳 (HPAH) 的存在和与贸易相关的风险知之甚少.
研究的目的:
- 量化来自主要海洋的鱼中的特定HPAH度.
- 评估生物和地理因素对HPAH生物积累的影响.
- 评估国际贸易对HPAH风险转移的影响.
主要方法:
- 分析了来自太平洋,大西洋和印度洋的121个鱼样本.
- 量化36个化和化PAH目标原体.
- 统计分析以确定影响HPAH生物积累的因素.
主要成果:
- 在鱼中发现了9种以前未被检测到的PAH原体.
- 高酸高酸显示出增长稀释效应;脂质含量是生物积累的主要因素.
- 地理分布和海洋污染影响了HPAH水平.
- 国际贸易增加了鱼消费的癌症风险,在中国增加了50%,在墨西哥增加了30%.
结论:
- 鱼中HPAH污染是一个全球性的问题.
- 鱼的脂质含量和生长显著影响HPAH生物积累.
- 国际贸易对HPAH转移和消费者癌症风险增加构成重大风险.
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