渤海湾和黄河口外表层海水中芳烃的组成、分布及来源  

Composition,distribution and source of polycyclic aromatic hydrocarbons in surface water of Bohai Bay and outside Huanghe Estuary

作　　者：王璟[1] 王春江[2] 赵冬至[3] 朱雷[2] 

机构地区：[1]北京市辐射安全技术中心,北京100089 [2]中国石油大学(北京)资源与信息学院,北京102249 [3]国家海洋环境监测中心,辽宁大连116023

出　　处：《海洋环境科学》2010年第3期406-410,共5页Marine Environmental Science

摘　　要：以渤海湾海域及黄河口外海域为研究区,采用GC/MS检测手段对两海域表层海水中多环芳烃组分进行定性和定量分析,并分析其主要组成、分布、来源及输入方式,从而对多环芳烃污染状况进行初步评价。定量分析的结果表明,渤海湾海域17种多环芳烃含量为82.6～181.8 ng/L,黄河口外海域为43.7～122.4 ng/L。与国内外其他海域海水或沉积物相比,研究区多环芳烃的污染属于中等水平;通过对研究区域表层海水中芳烃组成特征的分析得出,多环芳烃主要来自化石燃料的燃烧,其中黄河口外远岸海域多环芳烃以石油来源为主,兼有燃烧来源。两海域均为近岸以燃油排放为主,远岸以燃煤排放为主。The polycyclic aromatic hydrocarbons（PAHs） in dissolved（0.7 μm） and particulate（0.7 μm） fraction in the Bohai sea（Bohai Bay and outside Huanghe Estuary） were determed by GC/MS.The differences of their absolute concentrations and compositions were examined before analysis of their sources and input modes according to the distance from the coast and the fractions（dissolved and particulate）.The quantitative results showed that total concentration of PAHs in Bohai Bay and outside Huanghe Estuary ranged from 82.6~181.8 ng/L and 43.7~122.4 ng/L,respectively.Comparing with the concentrations in other sea areas of our country or other countries,the studied area showed a moderate contamination level.Based on Phnanthrene/Anthracene,Fluoranthene/Pyrene and Pyrene/ Benzo（a） pyrene ratios,the main sources of PAHs was identified from combustion processes in most areas,but one of them showed more obvious oil input.PAHs at inshore area were proved associated with petrolic combustion,but PAHs at offshore area with coal-burning.

关 键 词：渤海湾和黄河口 多环芳烃 污染源解析 溶解态有机质 颗粒态有机质 

分 类 号：P734.2[天文地球—海洋化学]