The present paper aims at presenting a health-hazard assessment research based on the authors' work in the efforts to provide a quantitative description of the relationship between pollutants and human health.For our research purpose,we have first of all made a general survey on the likely pollutants from 5 water-supply sources in Huangdao District of Qingdao City,including the toxic pollutants in water that may enter into human bodies through drinking and dermal contact.To test the hazards that may be caus...