Department of Environmental Health Engineering, School of Health, Student Research Center, Isfahan University of Medical Sciences (IUMS), Isfahan, Iran.
J Environ Public Health. 2013;2013:469590. doi: 10.1155/2013/469590. Epub 2013 Apr 15.
The purpose of this study was to evaluate and compare chemical and microbiological quality of the 21 Iranian bottled drinking waters reported on manufacturer's labeling and standards in 2012. Samples were analyzed for chemical properties K(+), F(-), SO4 (2-), Cl(-), Mg(2+), Ca(2+), and pH. Total and fecal coliform and heterotrophic plate counts of selected samples were analyzed by MPN and HPC tests, respectively, for three months. Finally, the labeled and real contents of the samples were compared. Potassium and sulfate ions about 43 and 52 percent of studied sample contents had values higher than label amounts, respectively. Ca(2+), Cl(-) ions, and pH were about 71, 48, and 67 percent, respectively, less than label values. Total and fecal coliforms had negative results. The mean concentrations and standard deviations for K(+), Cl(-), pH, Ca(2+), Mg(2+), SO4 (2-), and HPC were 1.13 ± 1.06, 16.39 ± 31.97, 6.6 ± 0.7, 28.35 ± 10.34, 86.58 ± 33.21, 24.17 ± 17.30 mg/L, and 16855 ± 25603 cfu/mL, respectively. Thus, there is possibility of microorganisms' growth in favorite conditions in bottled water. It was imperative to assess the public health risks in bottled water in Iran.
本研究旨在评估和比较 2012 年报告的 21 种伊朗瓶装饮用水在制造商标签和标准上的化学和微生物质量。对水样的化学性质（K+、F-、SO42-、Cl-、Mg2+、Ca2+和 pH）进行了分析。通过 MPN 和 HPC 试验对选定水样的总大肠菌群和粪大肠菌群及异养菌平板计数进行了分析，为期三个月。最后，比较了标签和实际样品的含量。钾和硫酸盐离子分别约有 43%和 52%的研究样本含量高于标签值。Ca2+、Cl-离子和 pH 值分别约有 71%、48%和 67%低于标签值。总大肠菌群和粪大肠菌群的结果均为阴性。K+、Cl-、pH、Ca2+、Mg2+、SO42-和 HPC 的平均值和标准差分别为 1.13±1.06、16.39±31.97、6.6±0.7、28.35±10.34、86.58±33.21、24.17±17.30mg/L 和 16855±25603cfu/mL。因此，在适宜的条件下，瓶装水中可能会有微生物的生长。有必要评估伊朗瓶装水中的公共健康风险。
