دراسة الخواص الفيزيائية والكيميائية للمعبأة في زجاجات وتوزيع مياه الشرب في مدينة اجدابيا ليبيا

الملخص

This study was conducted in February 2024 to evaluate the bottled drinking
water circulating in the markets of Ajdabiya city for some chemical and
physical aspects and the extent of its compliance with the Libyan standard
specification and the World Health Specification. The study was conducted by
selecting seven samples of bottled drinking water circulating in the city
ma rkets, which were Sultan water, eNO, Aquafina, Dijlah, Al Naba, Al Ain, and
Al Jazeera. Tests included determining the concentration pH, TDS, sodium
Na ++, potassium K --, magnesium Mg +2 , calcium Ca +2 , chloride Cl --, and
bicarbonate HCO 3
The test results for the study samples showed that the concentration of the pH
in the study results gave values ranging between (5.8 6.8) and the lowest value
was for the waters of (Al Jazeera, eNO, Tigris and Al Ain), which do not
conform to the Libyan s tandard specification and the international
specification. The test results also showed that the concentration of total
dissolved salts ranged between (21.8 115.4 4 ) and the lowest value was in the
waters of (Al Sultan, eNO, Tigris and Al Naba), which do no t conform to the
Libyan standard and the international specification. The water samples of
(Aquafina and Al Ain) gave concentration results that conform to the Libyan
and international specifications. The results of chloride concentration values
ranged be tween (27.8 0.6), calcium concentration results ranged between
(5.60 0.01), magnesium concentration results ranged between ( 12.15 0.01)
bicarbonate concentration results ranged between (36.6 0.01), and sodium
concentration results ranged between (2.01 0.3 ) In bottled drinking water, it
did not exceed the permissible limits of the Libyan standard specification and
the World Health Specification, but it gave values very low than what is
recommended in the two specifications, and this negatively affects publi c
health.