马达加斯加的诱鱼中的微量元素和POP:对鱼和人类暴露的影响
S Diamant1, A Mahevitra2, D Monticelli3
1Madagascar Whale Shark Project Foundation, Nosy Be, Madagascar.
Marine pollution bulletin
|July 22, 2025
概括
海洋污染威胁着鱼. 由于高含量,马达加斯加的受污染的诱鱼对鱼和人类的健康构成风险,这凸显了污染监测的必要性.
科学领域:
- 海洋生物学 海洋生物学
- 环境毒理学环境毒理学
- 保护科学 保护科学
背景情况:
- 海洋生物多样性受到人类活动增加的威胁,海洋脊椎动物面临着严重的灭绝风险.
- 鱼 (Rhincodon typus),临灭绝的迁徙过动物,容易受到人类造成的压力,如海洋污染.
- 鱼是鱼的重要食物来源,可能充当污染物的载体.
研究的目的:
- 为了确定在马达加斯加的一个关键的鱼物种Sardinella gibbosa中遗留污染物 (PCB,DDT) 和微量元素 (TE) 的含量.
- 评估这些污染物对鱼 (Rhincodon typus) 的生物积累风险.
- 为了评估与食用受污染的沙丁菌结石菌相关的潜在人类健康风险.
主要方法:
- 在Sardinella gibbosa样本中对多二 (PCB),二二三乙烯 (DDT) 和微量元素 (TE) 的分析.
- 污染物水平与已确定的环境安全门和食品最高允许限值的比较.
- 基于污染物度对鱼和人类消费者的风险评估.
主要成果:
- 鱼中的DDT含量低于安全值,但 (Hg) 含量超过了可接受的限值.
- 污染的诱鱼对包括鱼在内的更高热量水平具有显著的生物积累风险.
- 沙丁虫 (Sardinella gibbosa) 的消费对人类造成非致癌和致癌的健康风险,原因是PCB, (Cd), (Ni) 和Hg.
结论:
- 鱼的食用鱼是鱼吸收污染物的一个关键途径,可能导致比先前估计的更高的暴露.
- 沿海生态系统的污染,特别是像马达加斯加这样的生物多样性热点,对海洋生物和人类健康构成双重威胁.
- 持续监测海洋环境中的化学污染对于保护危物种和公共健康至关重要.
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