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为了解和掌握我区生活饮用水的卫生状况,以评价水质的好坏,我站长年对芝罘区、开发区自来水水质进行监测。现将1996～1998年3年的监测结果报告如下。1 材料与方法1.1 水质监测点的选择 共选择芝罘区、开发区内不同方位20个用水单位为监测点。1.2 监测方法 按照中华人民共和国国家标准《生活饮用水水质检验方法》GB 5750-85进行。评价标准依据中华人民共和国国家标准《生活饮用水卫生标准》GB 5749—85进行。1.3 分析项目 pH值、总硬度(以CaCO_3计)、铁、锰、铜、锌、硫酸盐、氯化物、溶解性总固体、氟化物、砷、硒、汞、镉、铬(六价)、银、硝酸盐(以氮计)、菌落总数、大肠菌群等19项。2 结果与分析 1996～1998年对我市芝罘区、开发区自来水进行了多次较全面的水质监测。其中理化检验172份,17项指标合格率
In order to understand and master the hygienic condition of drinking water in our district to evaluate the quality of water quality, we have monitored the quality of tap water in Zhifu District and TEDA for many years. The monitoring results of the three years from 1996 to 1998 are reported as follows. MATERIALS AND METHODS A. Selection of water quality monitoring points A total of 20 water units in different directions in Zhifu District and TEDA were selected as monitoring points. 1.2 monitoring methods in accordance with the People’s Republic of China national standard “drinking water quality test methods” GB 5750-85. Evaluation criteria based on the People’s Republic of China national standard “drinking water health standards” GB 5749-85. 1.3 Analysis of the project pH, total hardness (calculated as CaCO_3), iron, manganese, copper, zinc, sulfate, chloride, total dissolved solids, fluoride, arsenic, selenium, mercury, cadmium, chromium Silver, nitrate (in terms of nitrogen), the total number of colonies, coliform and 19 items. 2 Results and Analysis From 1996 to 1998, we conducted several more comprehensive water quality monitoring of tap water in Zhifu District and TEDA in our city. Of which physical and chemical testing 172, 17 indicators pass rate