春、夏季惠州市海水环境质量及其有机污染评价

为加强惠州市海洋生态环境保护工作,并为其提供科学依据,文章利用2016年春季和夏季惠州市海洋环境综合调查数据,选取溶解氧、化学需氧量、无机氮和活性磷酸盐4个环境因子,分析其近岸海域和海洋基本功能区的海水环境质量,并评价海水有机污染状况。研究结果表明:春季近岸海域海水环境质量优于夏季,无机氮和活性磷酸盐为主要超标因子;港口航运区海水环境质量良好,其他功能区均有环境因子超标现象;近岸海域受到有机污染,旅游休闲娱乐区在2个季节均受到有机污染;海水环境尚未对海洋生物产生影响。

Marine Environmental Qualities and Organic Pollution Evaluation of Huizhou in Spring and Summer

Marine environmental variations are important basis for regional marine environmental and ecological protection and management.Four environmental factors (i.e.dissolved oxygen,chemical oxygen demand,inorganic nitrogen and inorganic phosphorus),were analyzed for water environmental quality and used to evaluate the organic pollution in spring and summer in Huizhou coastal area.The results showed that (i) the marine environmental qualities in spring were better than those in summer,while inorganic nitrogen and inorganic phosphorus were the main over proof factors.(ii) The quality of marine environment in the port shipping area in two seasons were good,while the other marine function areas exceeded the standard.(iii) The evaluation indexes of marine organic pollution in spring and summer in Huizhou coastal region suggested the seawater was polluted by organic matter,with the tourist and recreational areas polluted in two reasons.(iv) The quality of marine environment in spring and summer did not cause the anoxia,which had no effect on the activities of aquatic organisms.