摘要
2010年深水地平线事故发生后,在被石油污染的墨西哥湾观察到大量的“海油雪”形成,海油雪的相关研究成为人们关注的焦点。海油雪是指石油、浮游植物、细菌黏液等组成的团聚物,能够将石油从海面沉降至海底,对石油的风化过程产生深远影响。因此,研究海油雪的形成机制和生态效应,对于深入认识海油雪在石油-海洋系统中的作用具有重要意义。本文从物理凝聚、微生物和石油分散剂三个方面对海油雪的形成机制展开探讨,分析了海油雪对石油风化、底栖生物毒性和其他污染物迁移转化的影响,并结合现有研究进行了展望。
After the Deepwater Horizon accident in 2010,a large number of“marine oil snow”(MOS)were observed in the oil-polluted area of the Gulf of Mexico.MOS is a kind of agglomerate composed of oil,phytoplankton and bacterial slime,which can sink oil from the sea surface to the seafloor and has great influence to the weathering process of oil.Therefore,investigating the formation mechanism and ecological effect of marine oil snow is of great significance for further understanding the role of marine oil snow in the oil-ocean system.In this paper,the formation mechanism of MOS is discussed from three aspects of physical agglomeration,microorganism and oil dispersant,and the influences of MOS on oil weathering,benthos toxicity and migration and transformation of other pollutants are analyzed.Finally,future research directions are proposed.
作者
李雅卓
李章
张继彪
付杰
Yazhuo Li;Zhang Li;Jibiao Zhang;Jie Fu(Department of Environmental Science and Engineering,Fudan University,Shanghai 200438,China;School of Environmental Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei Province,China)
出处
《微生物学报》
CAS
CSCD
北大核心
2020年第9期1893-1906,共14页
Acta Microbiologica Sinica
基金
国家自然科学基金(91851110,41701541)。
关键词
海油雪
凝聚
胞外聚合物
分散剂
风化
生物毒性
marine oil snow
coagulation
extracellular polymer substance
dispersant
weathering
biological toxicity