评估环境参数对前岸沉积物中潜在有毒元素流动性的影响,以支持海洋-沿海污染预测
Alberto Ferraro1, Emanuele Marino2, Gennaro Trancone2
1Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona 4, Bari 70125, Italy.
Marine pollution bulletin
|July 29, 2023
概括
海洋沉积物中的潜在有毒元素 (PTEs) 影响环境质量. 这项研究研究了,,和在沙前岸沉积物中的行为,在不同的海洋条件下.
科学领域:
- 环境科学 环境科学
- 海洋化学 海洋化学
- 地质化学 地质化学
背景情况:
- 海洋沉积物中的潜在有毒元素 (PTEs) 对环境质量,经济和娱乐构成风险.
- 有效的污染监测和控制对海洋环境至关重要.
研究的目的:
- 研究 (As), (Hg), (Pb) 和 (Zn) 在沙前岸沉积物 (SFS) 的行为.
- 了解不同海洋水条件 (pH,氧化还原潜力,温度) 如何影响PTE的移动性和生物利用性.
主要方法:
- 在SFS中对四种PTE (As,Hg,Pb,Zn) 的实验研究.
- 模拟不同的海水条件:pH值,氧化还原潜力和温度.
- 分析PTE释放,质量平衡,以及沉积物可变分数的变化.
主要成果:
- (As) 的释放量明显高于初始水度 (2.7-6倍).
- (Pb) 和 (Hg) 呈现出优先释放到液态阶段 (分别高达10%和9.1%).
- 在SFS的可变分数中增加的Zn和Hg含量表明测试后生物可用性得到改善.
结论:
- 这项研究提供了关于在海洋沉积物矩阵中PTE行为的见解.
- 开发的方法有助于预测环境监测污染物的行为.
- 这些发现支持制定有效的海洋保护战略.
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