Results The sanitary protection of water sources was greatly strengthened after the water improvement project.
结果与改水前比较，水源的卫生防护状况有很大改善；
Objective To explore the effect of water improvement and the sanitary protection of water sources in Linyi City.
目的了解临沂市改水效果及水源的卫生防护状况。
Methods Surverys were made on the sanitary protection of water sources after the water improvement project in Linyi City and meanwhile the quality of tap water was monitored.
方法对临沂市改水前后水源的卫生防护状况进行了调查，并对自来水水质进行了监测。
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