المجلة الدولية للعلوم والتقنية

Drinking water contains many important salts for the human body. When the concentrations of these salts exceed or exceed the permissible limits, they cause health problems for the body. This study aims to measure the concentration of nitrate and sulfate salts in some types of bottled drinking water from different local companies in the Libyan market and compare them with the standard specifications as well as compare the results obtained with those recorded on drinking water bottles. Samples of locally bottled drinking water were collected from commercial centers in the city of Al-Khums - Libya in October 2021 , they are ten samples from different companies and the most frequently traded in the Libyan market, among which the concentrations of nitrate salts (NO3-) and sulfates (SO42-) were measured using a (Spectrophotometer). The results showed that the concentration of nitrate salts for all studied samples ranged between( 0.5- 3.5mg/L), which is less than the recommended values according to the Libyan specifications (10 mg/L) and international specifications (l0-50 mg/L), As for the concentration of sulfate salts, it ranged between (2.00-8.11mg/L) in all samples, less than the permissible limits in the Libyan specifications whose value is (150 mg/L) and the international specifications according to the World Health Organization (200-400 mg/L). Also, a difference was found. It is clear between the obtained results and the values of nitrate and sulfate concentrations written on the packages Keywords: Nitrates - sulfates - bottled drinking water - dissolved salts - standard specifications.