Study and evaluating the quality of some local drinking water that present in Libyan market

Abstract

The purpose of this study is to collect samples of bottled water in plastic containers from the Libyan market and untreated samples of groundwater and transfer them to the relevant laboratory and to conduct chemical analyzes that show the quality and efficiency of water used for drinking in the Libyan market and compare it with the Libyan and international standards for drinking water, i.e. the World Health Organization . The results showed that the pH of the untreated well water sample was within the permissible limits in the Libyan standard, as well as (75%) of the bottled water samples was also within the permissible limits, in addition to this the results showed that the total dissolved salts (TDS) in the well water sample Untreated, it was higher than the permissible level in the Libyan standard, while the bottled water samples showed after the study that the level of TDS was less than the level and the limits allowed in the Libyan standard by (100%) of the samples under study, and regarding the concentration of chemical elements for well water showed The results are that most of the concentrations were higher than the levels permitted in the Libyan standard with the exception of nitrates, while in bottled water most of the chemical element concentrations were at the required level according to the Libyan standard with the exception of nitrates, which was higher in sample No. (2) than the standard level . The results show us that the sample of untreated well water is not suitable for drinking. This means that its measurements do not match the standard with local and international. The results showed through this research that water samples packed through the desalination and water treatment plants are acceptable to some extent as drinking water, but they are not ideal at all, because the TDS is less than the required level according to the Libyan standard for drinking water, and this matter needs more. From the study because of its impact on human life, whether during its use in drinking or in the food and pharmaceutical industries that we needs in different stages of life.