Determination of total dissolved solid (TDS), nitrate and fluoride in 24 brands of Iranian bottled waters

摘要

Concentration of total dissolved solid (TDS), nitrate and fluoride in 24 different brands of Iranian bottled water were studied. A total of 78 bottle water was analyzed for TDS, NO3-and F-according to standard methods. Also, results were compared to Iranian, World Health Organization (WHO) and Environmental Protection Agency (EPA) drinking water standards. The mean concentrations of F-in all examined water samples were lower than acceptable ranges. In three brands the concentrations of nitrate were higher than Iranian legislations (NO3-≥45 mg/l as NO3-). In addition, the mean concentration of TDS in 9 brands were higher than 500 mg/l (Iranian legislations) and in all brands were within the appropriate WHO guidelines values.