Using some physicochemical variables to evaluate ground water in al-Militaniya area in northeast Libya

الملخص EN

Al-Militaniya is a small village in a semi-arid in northeast Libya, where groundwater is an important Source of agriculture and drinking water region.

The study evaluated the groundwater quality of drinking water for the 3-month from June to August 2022 by using standard methods.

The samples were analyzed for 14 parameters: pH, temperature (T), electrical conductivity (EC), Total hardness (Ha), Ca- Hardness, total alkalinity, Na, Fe, Ca, Mg, Cl, NO2, NO3-N, and Phosphate (PO4) at five sites in the study area.

The results showed some variation in the total dissolved salt values among the five sites may be a sign of soil and rock weathering under the earth's surface during water infiltration into the aquifer.

Other parameters such as Total hardness (Ha), Ca-Hardness, total alkalinity, Na, Fe, Ca, Mg, and Cl was within standard permissible limits of the World Health Organization.

The concentration of NO3 -N (17.3 mg/l and 12.5 mg/l) in stations 1 and 2 respectively exceeded the permissible limit, whereas the concentration of PO4 phosphorus (0.14 mg/l and 0.15 mg/l), in stations 1 and 2 respectively.

The high level of NO3-N nitrate maybe possibly be the anthropogenic origin of these contaminants from nonpoint sources of urban effluent and diffuse source agricultural activity.

In conclusion, some Physical and chemical features of groundwater indicated in the study area that some of the area's wells are drinkable, therefore it is important to ensure the water's microbial validity.