人为的多重污染物输入到离岸的南中国海
Fen Chen1, Shengyi Mao2, Gang Li3
1Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing 100049, China.
The Science of the total environment
|January 25, 2024
概括
南中国海越来越多地受到石油碳化合物,重金属和污水的污染. 河流排放对污染物分散产生重大影响,威胁海洋生态系统和珊瑚礁.
科学领域:
- 海洋污染 海洋污染
- 环境地质化学环境地质化学
- 沉积物学的沉积物学
背景情况:
- 南中国海 (SCS) 被认为是偏远的,污染最小的地区.
- 人为活动的增加构成了越来越多的污染威胁在SCS.
研究的目的:
- 来自南方SCS的表面沉积物分析人为污染物.
- 了解污染物相互作用,控制因素和当前污染状况.
- 为SCS提供政策和管理决策的信息.
主要方法:
- 表面沉积物样本的多学科分析.
- 石油碳化合物,重金属 (Cd,As),醇和的鉴定.
- 污染物与陆地元素和颗粒大小的相关性分析.
主要成果:
- 与以前的报告相比,石油碳化合物, (Cd) 和 (As) 的污染增加.
- 首次检测到和中链,表明污水和生物质燃烧输入.
- 污染物分布受河流排放 (公河,珍珠河,红河) 和季风流的影响.
- 子具有不同的分散模式,可能是由于大气运输.
结论:
- 河流输入是SCS污染物分散的主要驱动因素.
- 人为污染物威胁海洋生态系统,包括珊瑚礁,通过加剧变暖和酸化.
- 城市排放的科学管理对于缓解人类世的生态系统退化至关重要.
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