Distribution features of oil and preventive countermeasures in Meizhou Bay,China

The content and distributive feature of oil in Meizhou Bay, China during summer were analysed on the basis of water quality survey. The result showed that oil concentration ranges between 5—51 μg/dm 3 with an average of 19 8 μg/dm 3. The mixed coefficient is lower. The difference of oil distribution between high tide and low tide is related to the distribution of land pollution and is mainly decided by water dynamics. Average turn over rate and enrichment coefficient can provide fundamental information to estimate oil concentration in sea water.

湄洲湾夏季油的分布特征与防护对策

本文根据1992年夏季对湄洲湾水质环境质量调查资料，对该海区海水中油的含量及分布特征进行了分析研究。结果表明：渴洲湾夏季表层海水油的含量为5～51μg／dm3，平均值为19．8μg／dm3。海水的混合系数较小，高潮和低潮时油含量分布的差异，除了与陆源污染源分布有关外，主要是由水文动力学条件所决定。湄洲湾海水的平均交换率以及油的年积累量可作为预测该海区水中油含量的变化依据。