论文部分内容阅读
对青岛浴场表层海水中正构烷烃和多环芳烃组成、分布及来源进行分析。分别在第一海水浴场(以下简称一浴)、第二海洋浴场(以下简称二浴)、黄岛金沙滩海水浴场和五四广场4个站位采集表层海水,经萃取、浓缩后用气质联用法(GC-MS)进行测定。结果表明,各站位海水中正构烷烃谱图均为双峰型,主峰碳和奇偶优势各不相同,正构烷烃(∑n-alk)含量为1.14-25.47μg/L;多环芳烃(∑PAHs)含量为201.01-314.30 ng/L,以二、三环的萘、苊、二氢苊、芴、菲、荧蒽为优势组分;一浴、二浴和五四广场海水正构烷烃以石油、化石燃料的不完全燃烧等人类活动输入为主,金沙滩海水正构烷烃以硅藻、细菌等浮游生物的输入为主;一浴、二浴和金沙滩海水多环芳烃主要来源于石油污染和化石燃料燃烧的混合源,五四广场海水多环芳烃主要来自石油源;正构烷烃特征比值CPI,OEP,Pr/Ph均指示四种海水受到石油污染。
The composition, distribution and sources of n-alkanes and polycyclic aromatic hydrocarbons in surface seawater of Qingdao Bathing Beach were analyzed. Respectively, in the first beach (hereinafter referred to as a bath), the second ocean bath (hereinafter referred to as two baths), Huangdao Jinshatan Beach and Wusi Square 4 stations collecting surface seawater, after extraction, concentration with the temperament Usage (GC-MS) measurement. The results showed that the n-alkanes in all stations were both bimodal with different carbon and odd-even dominant peaks. The content of n-alkanes was 1.14-25.47μg / L. PAHs) content of 201.01-314.30 ng / L, with two, tricyclic naphthalene, acenaphthene, dihydroanthracene, fluorene, phenanthrene, fluoranthene as the dominant component; one bath, two baths and 54 square sea n-alkanes to Oil, incomplete combustion of fossil fuels and other human activities input mainly Jinshatan sea water normal paraffins to diatoms, bacteria and other plankton input mainly; one bath, two baths and Jinshatan sea PAHs mainly from petroleum Pollution and combustion of fossil fuel sources, PA44 marine PAHs mainly from petroleum sources; n-alkanes characteristic ratio CPI, OEP, Pr / Ph indicate that the four kinds of seawater oil pollution.