天津近岸海域夏季石油类分布特征及其与环境因子的相关性  

Characteristics of petroleum and its correlation with environmental factors in Tianjin coastal area in summer

作　　者：王红[1,2] 屠建波 徐玉山[2] 刘宪斌[1] WANG Hong;TU Jianbo;XU Yushan;LIU Xianbin(Tianjin University of Science and Technology,Tianjin 300457,China;Tianjin Marine Environmental Center Station,State Oceanic Administration,Tianjin 300457,China)

机构地区：[1]天津科技大学,天津300457 [2]国家海洋局天津海洋环境监测中心站,天津300457

出　　处：《海洋湖沼通报(中英文)》2025年第1期146-155,共10页Transactions of Oceanology and Limnology

基　　金：国家重点研发专项(2019YFC1407801);天津重点研发计划科技支撑重点项目(19YFZCSN01130);天津市规划和自然资源局科技项目(ML2019-HP-F161)。

摘　　要：根据2009—2018年夏季渤海湾天津近岸海域的调查资料,系统分析了表层海水石油类的年际变化趋势和空间分布特征,进行了污染状况评价,探讨了石油类与其他环境因子之间的相关性。结果表明,2009—2018年天津近岸海域夏季表层海水中石油类含量变化范围为0.024 9~0.056 0 mg/L,平均值为0.037 9 mg/L,随时间变化呈现下降趋势。空间分布特征为近岸较高、远岸较低;由北至南呈现降低趋势。2009—2018年,较清洁及以上(1~3级)水质站位所占比例不断增加,2018年达到95%。石油类与活性磷酸盐和无机氮均存在极显著正相关(p<0.01),相关系数分别为0.191和0.398;与盐度存在极显著负相关(p<0.01),相关系数为-0.306;与COD存在显著正相关(p<0.05),相关系数为0.168。夏季表层海水石油类浓度与国内其他海域相比处于中等水平,石油类污染较轻。Based on the survey data of Tianjin coastal waters in Bohai Bay from 009 to 2018,the interannual variation trend and spatial distribution characteristics of petroleum in surface seawater were systematically analyzed,the pollution status was evaluated,and the correlation between petroleum and other environmental factors was discussed.The results showed that the content of petroleum in the surface seawater of Tianjin coastal area in summer from^(2)009 to 2018 ranged from 0.0249 to 0.0560 mg/L,with an average of 0.0379 mg/L,showing a downward trend with time.The spatial distribution characteristics were higher in the near shore and lower in the far shore,and showed a decreasing trend from north to south.From 2009 to 2018,the proportion of relative clean and above(grade 1-3)water quality stations has been increasing,reaching 95%in 2018.There was a significant positive correlation between petroleum and active phosphate and inorganic nitrogen(p<0.01),and the correlation coefficients were 0.191 and 0.398,respectively.There was a significant negative correlation between petroleum and salinity(p<0.01),and the correlation coefficient was-0.306.There was a significant positive correlation between the petroleum and COD(p<0.05),the correlation coefficient was 0.168.Compared with other sea areas in China.The concentration of petroleum in surface seawater in summer was at a medium level,and the petroleum pollution was relatively light.

关 键 词：天津 近岸海域 石油类 分布特征 相关性 

分 类 号：P734[天文地球—海洋化学]