作　　者： ; ; ; ; ;

机构地区： 广东海洋大学

出　　处： 《环境科学与技术》 2014年第12期138-142,共5页

摘　　要： 于2010年6月对雷州半岛海域进行了采样调查,研究分析了雷州半岛海域表层海水和沉积物中石油烃浓度的平面分布特征,并对石油烃与其它水质参数的相关关系进行了探讨。结果表明,雷州半岛海域表层海水石油烃质量浓度为0.013~0.093 mg/L,平均值为0.038 mg/L,基本属于一、二类水质,部分站位达到三类水质,所占比率为19.3%;水质等级属于影响,未达到污染。在地域分布上,呈现出东侧〉南侧〉西侧的分布趋势,且在东、南两侧海域,石油烃浓度明显呈现出由海洋向沿岸逐渐增大的分布趋势,而在西侧,此分布趋势并不明显。雷州半岛海域沉积物石油烃质量浓度为0.06~11.05μg/g,平均值为2.92μg/g,质量等级属于一类;底质等级属于良好,未受石油污染。在地域分布上,沉积物石油烃浓度呈现出东侧〉南侧〉西侧的分布趋势,且在东、南、西侧,石油烃浓度均呈现出明显的从海洋到沿岸逐渐增大的分布趋势。雷州半岛海域表层海水石油烃与p H、TOC呈现出一定正相关性,与水温、沉积物石油烃呈现出不显著负相关,与盐度、Eh和多环芳烃则无明显相关关系。 This paper reported on a field investigation about the plane distribution of oil hydrocarbon in surface seawater and sediment in the coastal waters of Leizhou Peninsula,during which seawater and sediment samples were collected in June2010,and correlations of oil concentration with the other environment factors were discussed. Findings of the investigation showed that oil content in the surface seawater of Leizhou Peninsula＇s sea area ranged from 0.013 to 0.093 mg/L in an average of 0.038 mg/L during summer of 2010. On the whole,oil contents of the Peninsula sea area,basically meeting the national seawater quality standard（Class I and/or II）. Plane distribution of oil concentration differed showing the trend in order as east partsouth partwest part,and oil concentration went up towards the coast in the east and south parts. As to oil content in sediment in this sea area,analytic results showed that the concentrations ranged from 0.06 to 11.05 μg/g,in the average of 2.92 μg/g,indicating basically free of pollution;and the distribution of oil content showed the similar trend as that of surface seawater. In general,oil content of surface seawater was positively correlated with p H and TOC of seawater and negatively correlated with water temperature and oil content in sediment,but unremarkably;whereas,oil in surface seawater was unlikely correlated with other parameters such as salinity,Eh and PAHs.

关 键 词： 雷州半岛 石油烃 夏季 平面分布

领　　域： [环境科学与工程]