在西南中国海增加多环芳污染的来源及其对环境的影响
Minwei Han1, Kefu Yu1,2, Ruijie Zhang1,2
1Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Coral Reef Research Center of China, School of Marine Sciences, Guangxi University, Nanning 530004, China.
Environmental science & technology
|November 1, 2023
概括
由于海上石油和航运活动,南中国海的多环芳 (PAH) 污染量增加. 颗粒物加速大气中的PAHs.
科学领域:
- 海洋化学 海洋化学
- 环境科学 环境科学
- 污染监测 污染监测 污染监测
背景情况:
- 海上石油开采和航运对海洋生态系统产生重大影响.
- 多环芳 (PAH) 在海洋生态系统中的环境影响尚未完全理解.
研究的目的:
- 系统地描述西南中国海 (WSCS) 多种环境介质中的PAH度.
- 为了确定PAH污染是否在WSCS增加.
- 评估海上活动和颗粒物在PAH分布和运输中的作用.
主要方法:
- 在大气,雨水,海水和深海沉积物中的PAH度的系统表征.
- 模型比较以验证PAHs的气体粒子分区.
- 分析颗粒物对PAH垂直迁移和沉积的影响.
主要成果:
- 在WSCS水域的平均15PAHs度增加,超过了大多数海洋的度.
- 克苏特空气模型准确地反映了WSCS中的大气PAH分区.
- 颗粒物加速大气中PAH向海洋的迁移 (16%的颗粒相位贡献) 并影响水柱分布和来源分配 (>20%的PAH贡献).
结论:
- 海上石油开采和航运活动增加了WSCS的PAH污染.
- 颗粒物在PAHs的运输和沉积中起着至关重要的作用,加剧了它们的生态威胁.
- 持续关注颗粒物在PAH动态中的作用至关重要.
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