在水力动力学影响下,和的环境特征在缩的河口中
Hongying Guo1, Siqi Sun1, Qingbi Tan1
1School of Ocean Engineering and Technology, Sun Yat-sen University (Guangzhou) /Southern Laboratory of Ocean Science and Engineering, Zhuhai, China.
Environmental research
|September 19, 2025
概括
珍珠河口中的重金属如和受营养污染和淡水和海水混合的影响. 了解这些因素对于管理该地区的海洋污染至关重要.
科学领域:
- 环境化学环境化学
- 海洋科学 海洋科学
- 河口科学 河口科学
背景情况:
- 全球的河口面临着人类活动带来的挑战,影响水质.
- 有限的数据存在于河口混杂,缩和重金属存在之间的相互作用.
- 珍珠河河口 (PRE) 是研究这些相互作用的关键区域,因为它的意义和人类的影响.
研究的目的:
- 分析PRE海水中 (Hg) 和 (As) 的分布模式.
- 为了确定河口混合和环氧化对Hg和As水平的影响.
- 确定控制河口重金属行为的主要因素.
主要方法:
- 在2019年夏天在珍珠河口收集现场数据.
- 在海水中分析重金属度 (Hg和As).
- 应用多变量统计方法,包括主要组件和回归分析.
- 评估河口的参数,如盐度,悬浮颗粒物 (SPM) 和营养水平.
主要成果:
- 盐度在0.56-22.71 (表面) 和1.56-30.59 (底部) 之间.
- 平均SPM水平为17.15 mg/L (表面) 和23.39 mg/L (底部).
- 含量从上游河口减少到下游河口 (2.8-5.0μg/L).
- 含量在0.014-0.029μg/L之间.
- 河口表现出中等到高的育状态,与金属水平相关.
- 陆地输入和淡水和海水混合被确定为Hg和As的主导因素.
- 和As可能有共同的起源,而Hg有不同的来源.
结论:
- 河口混合和陆地输入显著控制PRE中的和动态.
- 河口的顺状况与重金属的存在有关.
- 这些发现支持PRE和大湾区的综合污染控制战略.
- 区分,和的来源对于有效管理至关重要.
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