Assessing the Chemical Components of some Iranian Brands of Bottled Water

Document Type : Brief Report


1 Environment Health Engineering Department, Health Faculty, Kashan University of Medical Sciences, Kashan, Iran

2 HSE Department, Health Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran


Aims Bottled water is widely used in many countries and more than 100 different brands
of bottled water are produced in Iran. The aim of the present research was to assess the
chemical compound of some Iranian brands of bottled water and compare them with the
mention information on their labels.
Instrument & Methods This descriptive study was performed during March to December
2012 on the 16 brands of bottled water produced in Iran. Random sampling (10 samples
for each brand) was done by buying 1.5liter bottled water with different brands from the
supermarkets in Kashan City, Iran. The concentration of Na+, K+, F-, NO3-, SO4-2 and Cl- and
the pH of bottled water samples were measured. Data were analyzed by SPSS 16 software
using independent T test.
Findings The mean concentration of NO3- was 1.70±2.52mg/l, Na+ was 8.44±8.76mg/l,
K+ was 0.11±0.53mg/l, SO4-2 was 15.15±12.49mg/l, Cl- was 42.30±33.84mg/l and F- was
1.02±1.88mg/l in all samples of 16 brands of bottled water. The highest concentration
of NO3- was seen in brand 12 (9.55±2.76mg/l), Na+ in brand 6 (32.18±12.60mg/l), K+
in brand 13 and 4 (1.86±0.76mg/l), SO4-2 in brand 6 (40.53±8.90mg/l),Cl- in brand 16
(88.73±13.80mg/l), F- in brand 13 (0.63±0.12mg/l). The pH of brand 12 (7.9±0.1) was the
highest among the samples.
Conclusion The concentrations of Na+, K+, F-, NO3-, SO4-2 and Cl- of the studied Iranian
brands of bottled water are not higher than the national and international standards and the
pH is in the acceptable range.