深圳梅沙海滨浴场近年海水卫生状况分析

Survey of seawater quality in Meisha Beach Pool in Shenzhen City

目的通过调查监测梅沙两处海滨浴场的水质卫生状况及分析影响因素,为两处海滨浴场发展和制定管理策略提供依据。方法根据国家标准《海洋监测规范第4部分:海水分析》(GB17378-2007),对大梅沙和小梅沙浴场范围的海水进行了采样分析,着重监测大肠杆菌、粪大肠杆菌等卫生指标;按国家标准《海水水质标准》(GB3097-1997)评价其海水水质。结果两处海水质量总体上处于良好的状态,符合国家Ⅱ类海水水质标准;但在夏秋旅游旺季由于游客的增多和天气影响而卫生质量下降,特别是接待游客量多的大梅沙浴场;相比之下小梅沙水质比大梅沙保持得好。结论大、小梅沙海水浴场水质状况良好,其中小梅沙浴场水质优于大梅沙;两处浴场2007年的水质卫生指标比上年有改善;在旅游旺季游客量激增,需要采取相应措施控制游客量和防治污染。

Objective TO surey the water quality of Meisha Seawater Bathing Beach and relevant factrors and provide the basis for making management strategies. Methods According to national standards, marine monitoring norms Part 4： Analysis of sea water＂ （ GB17378 - 2007）, Water smples from two Seawater Bathing Beahes were collected and analyzed, mainly monitoring the contamination status ofE. coli and other health indicators; The quality of bathing beach water was evaluated according to national standards, ＂water quality standards＂ （ GB3097 - 1997）. Results The quality of the seawater bathing beaches were up to the sanitary criteira. But the water quality was decreased in summer when many tuorists arrived. Conclusion The water quality of the two seawater bathing beaches are excellent and they get improving year after year. But effective measures be taken to prevent the E. coli from contamination of the water during suinme time when there would be crowd of tuorists.