Water quality of typical rainwater collection-disposal system in the islets and the healthy consequences for islander of long-term drinking rainwater were introduced. Water quality was examined according to the Standard Examination Methods for Drinking Water (GB/T 5750-2006). The differences of water from the angle of Hygiene were compared among islets rainwater, Standards for Drinking Water Quality (GB 5749-2006) and Hygienic Standard of Mineralization for Drinking Water with Low Mineral Level (GJB 1335-92). The results show all of the examined water quality index meeting GB 5749-2006. All the following elements concentration such as Mg 1.4mg/L, Ca 5.18 mg/L, SO-24 3.14 mg/L and HCO5 33.7 mg/L are lower than the recommendable concentration in GJB 1335-92. Long-term drinking of rainwater could cause some negative consequence for islanders health. It is suggested that some measures shall be do to the rainwater quality in order to meet GB 5749-2006 and GJB 1335-92, which can be better to insure the islanders healthy.%分析岛礁典型雨水处理系统的雨水水质特点,从卫生学角度探讨雨水直接用于岛礁饮用水保障的可行性.采用《生活饮用水标准检验方法》( GB/T 5750-2006)检测水质,并比较岛礁雨水水质与《生活饮用水卫生标准》(GB 5749-2006)、《低矿化度饮用水矿化卫生标准》(GJB 1335-92)的差异.结果表明,岛礁雨水15项水质指标均符合GB 5749-2006;其中镁1.40 mg/L、钙5.18 mg//L、硫酸盐3.14 mg/L、重碳酸盐33.7 mg/L,低于GJB 1335-92的适宜浓度范围,属于典型的软水.雨水直接用于岛礁饮用水保障是可行的,但长期饮用雨水对人们健康可能会有影响,建议调整岛礁雨水水质,使其符合GB 5749-2006、GJB 1335-92,从而更好地保护人们的身心健康.
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