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多环芳化合物,包括洗机排水中的非目标和71目标多环芳化合物及其对环境的影响

Christine Achten¹, Octavio Marin-Enriquez², Brigitte Behrends³

¹Institute of Geology and Palaeontology - Applied Geology, University of Münster, Corrensstraße 24, 48149 Münster, Germany.

Marine pollution bulletin

|September 13, 2024

概括

船舶洗机的排放水含有来自燃料的多环芳香化合物 (PAC). 闭环系统集中这些有毒化合物,造成环境风险. 使用低PAC燃料可以减少海洋污染.

科学领域:

海洋环境化学海洋环境化学
污染控制技术污染控制技术
分析化学是一种分析化学.

背景情况:

海洋洗技术越来越多地用于减少船舶的氧化硫 (SOx) 排放.
这些洗器的排放水可能含有持久和有毒的多环芳香化合物 (PAC).
关于这些物质释放到海洋生态系统,存在环境问题.

研究的目的:

为了全面分析洗机排放水的溶解和颗粒物相.
量化来自开放式和闭环式洗系统的排放中的多环芳香化合物 (PAC).
调查燃料组成和排放中的PAC之间的关系.

主要方法:

分析了来自四艘船的洗机排放水中的71种不同的PAC.
在溶解和颗粒物分量中分离和定量PAC.
气色谱 - 大气压激光电离 - 质谱 (GC-APLI-MS) 用于初步识别新型PAC衍生物.

主要成果:

PAC度各不相同,与燃料成分相关,主要来自未燃烧的燃料.
闭环排水表现出更高的PAC度,特别是高分子量 (HMW) PAC.
甲和甲占主导地位,分别是溶解和颗粒物分量.
在低度中发现了14种含有,氧和硫的PAC (NSO-PAC).
暂时确定了新型基化衍生物的环[def]和甲.

结论:

洗机排放水是海洋多环芳香化合物 (PAC) 的来源.
闭环系统可能会增加排放中的有毒PAC度.
使用含有较低PAC含量的燃料是减少船舶排放造成的海洋污染的可行策略.

关键词:

大气压激光电离,大气压激光电离.类似于二氧化的效应.非目标分析非目标分析多环芳香碳化合物多环芳香碳化合物清洗机排放水的排放水.船舶运输排放的排放量

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