论文部分内容阅读
根据2006—2009年温州近岸海域石油烃的调查结果,分析海域石油烃污染的分布特征,并采用单因子指数法对石油烃污染程度进行了评价。结果表明,调查海域海水中石油烃含量范围为ND~0.085 mg/L,平均含量为0.018 mg/L。除2008年和2009年各有1个测点超出一类海水标准限值(≤0.05 mg/L)外,其余测点石油烃含量均未超出一类标准限值。2009年沉积物石油烃平均含量为20.7×10-6,各测点均低于一类沉积物标准值,表明温州近岸海域还未明显受到石油烃污染。
According to the survey results of petroleum hydrocarbons in coastal areas of Wenzhou in 2006-2009, the distribution characteristics of petroleum hydrocarbon pollution in the sea area were analyzed. The pollution degree of petroleum hydrocarbons was evaluated by single factor index method. The results showed that the hydrocarbon content of seawater in the surveyed waters ranged from ND to 0.085 mg / L and the average content was 0.018 mg / L. Except for one point in 2008 and 2009 which exceeded one of the standard seawater limits (≤0.05 mg / L), the petroleum hydrocarbon content of the other sites did not exceed the first class standard limit. In 2009, the average content of petroleum hydrocarbons in sediments was 20.7 × 10-6, and each measuring point was lower than the standard value of one type of sediment, indicating that oil and gas hydrocarbons have not been obviously contaminated in coastal waters of Wenzhou.