Methods the 73 monitor sites were assigned in sampling country towns , water samples were collected in different batches and monitored according to the monitoring standards manual of ministry of health on rural areas water factory and different dispersed types of drinking water sources 方法在永定區(qū)各鄉(xiāng)鎮(zhèn)抽取73個監(jiān)測點,分批次采集水樣,按照衛(wèi)生部《生活飲用水檢驗規(guī)范》對農村集中式供水(水廠)和各類分散式供水進行監(jiān)測。