摘要:
根据2010年8月对泉港区污水排海管道沉积物的第一手检测资料，对管道内的沉积物环境中的主要污染因子，如：有机碳、硫化物、油类、铬的变化趋势、相关性进行分析，以及对研究海域的环境质量进行评价。结果表明，各因子污染程度大致排序为铬 > 有机碳 > 油类 > 硫化物。在管道内的水平方向上，有机碳和硫化物的含量呈正相关，而与油和铬的含量呈现负相关。各污染因子大多符合GB 18688-2002海洋沉积物一类标准，仅有部分站位出现超标情况，该海域的沉积物质量状况较好，但应该及时对污水排海管道进行清淤工作。
Based on the first-hand survey data about the sediment in sewage pipeline of Quangang District on August 2010, the analysis of variation tendency, correlation of main contaminants (organic carbon, sulfide, oils, Cr) and the assessment for sediment quality was done. The results showed: 1) According to pollution degree, Cr > organic carbon > oils > sulfide; 2) The content of organic carbon was positive correlating to the concentration of sulfide, while negative correlating to the concentration of oils and Cr in the horizon direction of pipeline; 3) Most contaminants coincide with the first-class standard of Marine Sediment Quality (GB18688-2002), whereas a few beyond that. The sediment quality condition was comparatively fine. However, the cleanout of pipeline was demanded urgently and timely.