Transport and behavior of marine oil spill containing polycyclic aromatic hydrocarbons in mesocosm experiments  

作　　者：Dawei SHI Houlei JIA 

机构地区：[1]Department of Marine Ecology Research,South China Sea Institute of Planning and Environmental Research,State Oceanic Administration,Guangzhou 510300,China [2]Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China

出　　处：《Journal of Oceanology and Limnology》2023年第1期166-173,共8页海洋湖沼学报（英文）

摘　　要：Polycyclic aromatic hydrocarbons(PAHs)are one of the most important groups in oil,and re sponsible for major toxic and/or carcinogenic impact on humans and wildlife.It is important to understand the behavior of PAHs in marine environment after an oil-spill incident.However,interaction between petroleum PAHs and microbial communities in a marine environment remains unclear.Therefore,a series of mesocosm experiments were conducted.in which water-accommodated fraction(WAF)of oil was generated to simulate an oil-spill scenario and to analyze the transport and behavior of marine oil spill containing PAHs with and without dispersants.Results indicate that the application of dispersant could increase the concentration of total PAHs in water column due mainly to significant increase in the concentration of highmolecular weight(HMW)PAHs at a lower removal rate.At the end of the 7-day experiment,significant amount of HMW PAHs were accumulated in sediment.In general,the application of dispersant did not increase the sediment uptake of PAHs but increased the PAHs concentration in water column.

关 键 词：polycyclic aromatic hydrocarbons(PAHs) marine oil spill MESOCOSM DISPERSANTS degradation and transport 

分 类 号：X55[环境科学与工程—环境工程]