title: Evaluation of chemical and microbiological quality in 21 brands of Iranian bottled drinking waters in 2012: a comparison study on label and real contents.
abstract: 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.
authors.affiliation: Department of Environmental Health Engineering, School of Health, Student Research Center, Isfahan University of Medical Sciences (IUMS), Isfahan, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Moazeni
authors.forename: M
authors.initials: M
authors.lastname: Atefi
authors.forename: A
authors.initials: A
authors.lastname: Ebrahimi
authors.forename: P
authors.initials: P
authors.lastname: Razmjoo
authors.forename: M
authors.initials: M
authors.lastname: Vahid Dastjerdi
mesh_terms: D001419:Bacteria / Q000302:isolation & purification*; D015169:Colony Count, Microbial; D060766:Drinking Water / Q000737:chemistry* / Q000382:microbiology*; D004755:Enterobacteriaceae / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D007492:Iran
chemical_list: D060766:Drinking Water