2015年南海某钻井平台生活饮用水水质检测与健康风险

Quality Detection and Health Risk Analysis of drinking water in a Drilling Platform of South China Sea in 2015

目的:瓶桶装水作为饮用水,深度处理的自来水和或淡水化作为生活用水,是一种新的生活饮用水模式。为了解新的生活饮用水模式下生活饮用水水质,探讨长期饮用的健康风险,为大众饮用水健康安全管理提供依据。方法:以南海某海上钻井平台的生活饮用水作为新的生活饮用水模式,进行取样。按照GB/T 5750-2006《生活饮用水标准检验方法》进行水质分析,比较生活饮用水水质与GB 5749-2006《生活饮用水卫生标准》、GJB 1335-92《低矿化度饮用水卫生标准》的差异。结果:南海海上某钻井平台的生活饮用水的结果表明,瓶装水、房间水、厨房水的常规微生物指标、常规毒理指标、常规感官性状和一般化学指标、非常规毒理指标等13项指标均符合GB 5749-2006标准限值。氯化物、硫酸盐、溶解性总固体、总硬度、镁等均低于GJB1335-92的适宜浓度。结论:本研究中,新的生活饮用水模式下,生活饮用水的13项指标均低于GB5749-2006标准限值,总硬度、镁等含量偏低,氟化物、硼含量偏低,长期饮用新模式下的生活饮用水对大众健康可能有健康风险。

[Objective]： Bottle water as drinking water, deep treatment running water or desalinated seawater as a domestic water, is a model of drinking water. To explore the quality of drinking water in the new model, the health risk for people of long-term drinking such water, and provide the basis for the drinking water health management. [Methods]： The drinking water of a drilling platform in South China Sea as a representative of the new model, that is, bottled mineral water （bottled water） as drinking water, reverse osmosis desalination seawater （room water） for rinsing, tap water into the water purifier （kitchen water） for cooking for sampling. Then water quality was detected following ＂Standard examination methods for drinking water＂ （GB/T 5750-2006）. Then the detection results of desalinated water in a FPSO were compared with the requirements in ＂Standards for drinking water quality＂ （GB 5749-2006） and ＂Hygienic standard of mineralization for drinking water with low mineral level＂ （GJB 1335-92）. [Results]： 0 of 13 indicators over the standard （GB 5749-2006） for bottled water, room water, and kitchen water. Fluoride was less than 0.25 mg/L, Boron was less than 0.02 mg/L, total dissolved solids was less than 100 mg/L. While chloride, sulfate, dissolved solids, total harness, and magnesium were lower than recommendable concentration in GJB 1335-92. [Conclusion]： The study suggests that long-term drinking new model water may have health risk for people, because total harness, magnesium, fluoride and boron were low although no indicator was over the standard （GB 5749-2006）.