在州湾污染状况和源的空间和时间变化
Zhengwen Zhou1, Zhekai Tang2, Huiling Wang1
1Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education and College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China.
Environmental pollution (Barking, Essex : 1987)
|February 23, 2024
概括
在中国的污染.
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:
- 中国的沿海湾面临越来越多的 (Hg) 污染.
- 这些海湾中的长期趋势和来源尚不清楚.
研究的目的:
- 为了调查污染的状态和来源在州湾 (JZB),一个受到严重影响的中国海湾.
- 用沉积物核心分析历史趋势.
主要方法:
- 从州湾收集和分析表面和核心沉积物.
- 测量总 (THg) 度的方法.
- 对的稳定同位素分析.
- 应用稳定同位素混合模型来识别来源.
主要成果:
- 表面沉积物中的总度在7至163ng/g之间,在东部JZB的度更高.
- 从1936年到2019年,沉积物核心显示出的增加趋势,这表明污染情况正在恶化.
- 2019年,工业排放是JZB的主要源 (>50%).
- 河流在一个核心中增加,这是由于土地回收.
结论:
- 工业活动是湾污染的主要来源.
- 历史沉积物记录显示,工业污染的严重增加.
- 土地使用和河流管理的变化影响了投入.
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