石油烃在海洋微表层中的富集作用

Enrichment of Petroleum Hydrocarbons in Surface Microlayer

按IOC法对厦门港海区微表层的石油烃进行一年四季的研究,表层海水石油烃含量0.32～0.80μg/l(艹屈)当量,微表层石油烃含量0.76～12.3μg /l(艹屈)当量,富集系数(EF)2.0～26,春季和夏季较大,秋季和冬季较小,污染海区的EF值较大,EF值与水温、盐度以及微表层的DOC含量之间均不存在显著的相关关系。

Petroleum hydrocarbons in surface microlayer of Xiamen Bay have been studied at all seasons according to the IOC Manuals. Concentrations of petroleum hydrocarbon were 0. 32-0. 80 μg/l in seawater and 0. 76-12. 3μg/l in microlayer as cbrysene equivalents. The enrichment factors (EF) of microloayer for hydrocarbons were 2. 0--26, higher in spring and summer than in autumn and winter, and higher in polluted area. There are no significant relationships between EF and water temperature, salinity, or DOC of microlayer.