جهاز لقياس نسبة الأملاح في الماء، من اذر، متعدد الألوان

Use water storage tanks, which are not taken to be cleaned on a regular basis which is extremely dangerous.
Inadequate sanitation services and the disposal of its waste.
Disposal of industrial waste without addressed and dealt with that are partially.
As for groundwater In some areas, we find some of the minerals it leak of iron and manganese, along with pesticides used in agricultural land