| dc.description.abstract | The present study included study of physical and chemical parameters of 10 ground water well samples at Ashiafiyin -Masallata region north west of Libya . And Water sampling was done on a monthly basis from April 2019 . On state of comparison of the april months with Libyan Specifications, For pH average (8.2), the range were )8.1-8.4(, and the std.dev were(0.120) which is suitable for drinking and irrigation. These results also show that pH values exceed the pH value )7.8( indicating that carbonate ions are absent. For Electrical Conductivity EC the average 1189dsm-1 and the range )423-1363) at wells number 2 and 6 respectively, and the maximum was not according the Libyan standard (1500) ppm to drinking, but for irrigation were accepted.
For Total dissolved solids TDS the average is )3035 ( ppm, the range was )1478-4080 (ppm this value is higher than drinking Libyan standard (500-1000)ppm, and agriculture (1500) this means TDS is not acceptable for drinking and agriculture purposes. For Chloride ion in range is 262-387 mg/L at wells 14 and 2 respectively, the average is 316 mg/L, which compared to Libyan standard for drinking 200-250 mg/L, and irrigation 355 mg/L, it is not suitable for drinking and irrigation .
For Sulphate average is 1181.1 mg/L and the range is 822-480 mg/L ppm at wells 11 and 2 respectively. such value is higher than the accepted value for drinking 200-400 mg/L, and it is not suitable for irrigation. For Bicarbonate average is 448 mg/L, std. dev is 73.9 mg/L, which is accepted by irrigation Libyan standards 520 mg/L, and the maximum was higher than the Libyan standard 250-400 mg/L to drinking. while the value for irrigation is 400 mg/L, and such value is accepted for irrigation is purposes. Also Ca2+,Mg2+,Na+, k+ ,are not suitable for drinking and irrigation . Potassium levels average is 16.0 mg/L, which is below the drinking Libyan standards 5-9 mg/L, and such value is accepted for irrigation is purposes. | en_US |
