海口湾海域表层沉积物石油类分布与评价

Distribution and Assessment of Oil Concents in the Surface Sediments of Haikou Bay

2018年10月对海口湾20个站位表层沉积物中石油含量进行调查,探讨其分布趋势,并对石油含量进行单因子指数评价。结果表明,该海区表层沉积物中石油的含量范围5.62～1 764.73 mg/kg,平均值190.75 mg/kg,石油含量分布呈现湾西部较低、东部较高的格局,除了17号以及18号站位,其他站位的沉积物质量均满足所在海洋功能区的要求。

Based on the survey of oil content in surface sediments of 20 stations in Haikou Bay in October2018,the distribution trend of oil content was discussed,and the single factor index of oil content was evaluated.The results show that the oil content ranges from 5.62 mg/kg to 1 764.73 mg/kg,with an average value of 190.75 mg/kg.The distribution of oil content was lower in the west than the East.Except that the oil content of site 17 and site 18 does not conform to the functional zoning,the sediment quality of other stations conform the marine environmental requirements of the functional zoning.