Visual problems usually come from various undamaging pollutants, which influence the color, smell and taste of water. To such materials belong chlorine, sulfur, iron and manganese. Such problems are easy to tackle, applying a usual carbon filter (read below).
However, if your water comprises unsafe levels of other contaminants, you will have to use a water treatment technology proper for removing the pollutants, also described below. To describe them more properly, we have grouped toxic contaminants into four categories: organic and inorganic chemical agents, radio nuclides and micro biological organisms.
Organic chemical agents embrace solvents, synthetics, pesticides, resins and other artificial substances, a lot of them are identified as volatile organic chemical agents. In accordance with the EPA’s list, organic elements are often connected with liver and kidney disorders, nervous system and even cancer.
Especially dangerous organic compound, trihalomethanes, can be produced when the water has left a treatment production unit if chlorine enters into reaction with leaves, rotting animals and other plant substances. The result of this reaction is a shady carcinogen, such as chloroform.
Inorganic chemical agents embrace nitrates, nitrites, asbestos, fluoride and such metals as mercury, arsenic and, the most noble, lead. A lot of them are found as natural mineral beds.
Such metals, as lead and copper, leak into water as it moves through ducts. Unfortunately, your water utility is unable to eliminate them. Nitrates and nitrites are created by agriculture. Inorganic chemical agents are connected with a diversity of health problems. Lead arouses brain damage and is especially dangerous to kids and expectant women. Before 1930 lead ducts were used in plumbing, and solder applied to link copper piping in houses till 1986 comprises lead content of nearly 50%.
Radon gas, the most widespread radionuclide, is found naturally in many regions, including Western mountain states and the Northeast. The EPA calculated that nearly 17 million consumers may have water with superfluous levels of radon that gets to the air through rains and steam.
Microbiological pollutants, as well as protozoa, bacteria and viruses, are usually destroyed by treatment and chlorination. Such cysts as cryptosporidium and giardia are more steadfast to public treatment.
| 
