洋山港工程海域油类浓度变化和分布特征

Variation and distribution characteristic of oil in engineering area of Yangshan Harbour

通过对洋山港工程海域2003～2008年间2月和8月份油类监测资料的分析研究,结果显示:该工程海域2003～2008年间油类浓度均值呈波动特征;从2003到2008年,2月份的油类浓度变化趋势是逐渐降低,8月份呈波动特征;洋山港一期、二期和三期工程施工和营运以来,洋山港工程对周边海域油类产生影响,洋山港工程油类浓度高值区从一期工程时的东海大桥区向三期工程时的港口区发展,客观要求该海域油类监管的重点区域需不断变化。

Based on the analysis of the oil concentration in the engineering area of Yangshan Harbor in Feb.and Aug.2003～2008,the results showed that the oil concentration was the fluctuant characteristic 2003 ～2008,and the changed trend in Feb.was declined,but it was fluctuant in Aug.from 2003 to 2008.Since first phase,second phase and third phase project of Yangshan engineering were constructed and used,which has influenced on the oil concentration.The area of the high oil content in the Yangshan Harbor engineering area was increased from Donghai Bridge of first phase to Harbor area of third phase project,which objectively needed to change the monitoring area of oil.