碣石湾表层海水油指纹特征参数研究  

Parameter Characterization of Oilfingerprint in the Surface Seawater of Jieshi Bay

作　　者：李艳菊[1] 马启敏[1] 刘新军[1] 

机构地区：[1]中国海洋大学环境科学与工程学院,海洋环境与生态教育部重点实验室,山东青岛266100

出　　处：《海洋湖沼通报》2017年第2期58-65,共8页Transactions of Oceanology and Limnology

基　　金：海洋公益性行业科研专项经费(201205012)资助

摘　　要：本文通过2012年5月份和9月份两次采样,研究了碣石湾表层海水油指纹特征参数的大小和差异。结果表明:5月份碣石湾表层海水正构烷烃呈单峰分布,主峰碳为n-C16,9月份海域海水正构烷烃呈双峰型,前峰明显高于后峰,5月份表层海水受到油类影响,9月份表层海水同时受到油类污染和陆生高等植物的影响。在碣石湾表层海水的甾烷和萜烷中,5月和9月份碣石湾表层海水17α(H),21β(H)-藿烷(C30)为主要成分,其次为17α(H),21β(H)-30-降藿烷(C29);胆甾烷(C27甾烷)和乙基胆甾烷(C29甾烷)的ααα占优,甲基胆甾烷(C28甾烷)含量相对较低。Jieshi Bay surface seawaterwas sampled twice in May and September 2012 with its oil fingerprint parameters and the monthly difference of these parameters studied. The results showed thatn-alkanes took a unimodal distribution pattern in May with a carbon peak of n-C16 while n-alkanes took a bimodal pattern of distributionin September with two carbon peaks,a significantly higher one and a lowerone; and the surface sea water was affected by oil in May while the sea water was influenced by oil pollution and higher plants in September. For steranes and terpanes in the surface seawater of Jieshi Bay in May and September, the main composition were17α（H） and21β（H）-hopance （C30）, followed by 17α（H） and21β（H）-30-norhopane（C29）. Theαααof cholestane （C27 sterane） and ethyl cholestane （C29 sterane） were dominant while the content of methyl cholestane （C28 sterane） was relatively low.

关 键 词：碣石湾 正构烷烃 甾烷萜烷 油指纹 

分 类 号：X131[环境科学与工程—环境科学]