在Coptodon rendalli和博茨瓦纳Dikgatlhong大的地表水中量化微塑料:第一个基线证据
Baatshwana Caroline Ditlhakanyane1, Venecio U Ultra1, Serwalo Mercy Mokgosi1
1Department of Earth and Environmental Science, Botswana International University of Science and Technology, Palapye, Botswana.
Environmental technology
|March 6, 2025
概括
博茨瓦纳迪克加特 (Dikgatlhong Dam) 存在微塑料污染,影响了地表水和鱼类 (Coptodon rendalli). 水似乎是主要的暴露途径,强调了有针对性的污染控制战略的必要性.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 水生生态学 水生生态学
背景情况:
- 微塑料污染是一个日益严重的全球问题,影响淡水生态系统.
- 了解微塑料的分布和生物积累对于评估生态风险至关重要.
研究的目的:
- 为了调查在博茨瓦纳的迪卡特洪戈水中微塑料的存在,分布和生物积累.
- 为了确定表面水中的微塑料含量与鱼类 (Coptodon rendalli) 之间的关系.
- 确定潜在的暴露途径和影响微塑料污染的因素.
主要方法:
- 在Dikgatlhong大的六个地点抽取地表水和Coptodon rendalli的样本.
- 湿过氧化氧化水样和氧化物 (KOH) 预处理鱼组织.
- 分析不同采样地点的微塑料度和变化.
主要成果:
- 微塑料度有显著的变化,在塔蒂河流入 (S1) 的水和鱼中发现的度更高.
- 在水和鱼类微塑料含量之间观察到中度正相关性 (r=0.65).
- 特定地点的变化表明,诸如沉积物相互作用和饮食习惯等其他因素影响了微塑料的积累.
结论:
- 地表水是Dikgatlhong大中Coptodon rendalli微塑料暴露的主要途径.
- 针对性的缓解策略对于管理博茨瓦纳水生环境中的微塑料污染至关重要.
- 这项研究为未来关于该地区微塑料污染的研究提供了关键的基线.
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