Is chlorine necessary in drinking water? In an affirmative answer, how much must there be?
Consumption of contaminated water can be a source of serious illnesses. The chlorine is a barrier against that risk, because chlorine is one of the better disinfectants that can be employed in the production of drinking water. If drinking water comes to our table with chlorine, then we can be certain that our water is free of harmful germs. The chlorine concentration in water varies with the diverse treatments and with the location of houses to the water distribution networks. However, those concentrations must be between 0.5 and 5 mg of chlorine/liter of water. 3. What problems are caused by the presence of arsenic in drinking water? In populations that have drunk water contaminated with arsenic there is evidence of health effects. The illnesses caused by arsenic are: palm-plantar hyperkeratosis, whose symptoms are skin pigmentation and callousness on the palms of the hands and the feet, hyper- and hypopigmentation of the face, neck and chest, and cancer of the skin, lungs, liver, kid
