Pollution
Water is never 'pure' in a chemical sense. It contains various kinds of impurities such as dust particles, dissolved gases, dissolved minerals, microscopic paints and animals, suspended impurities and bacteria. These are natural impurities derived from the atmosphere, catchments area and soil. Besides this, there are various other reasons by which water i9 polluted.
The upland surface water derives its impurities from the catchments area, the sources being human habitations and animal keeping or grazing. It is therefore very necessary to keep the catchments area free from human or animal intrusion.
The general belief of purity in the water of mountain streams is often untrue. Even if there are no human habitations there is still a possibility of contamination caused by wild animals the impurities of river water are derived from surface washings, sewage and silage water, industrial and trade wastes, and drainage from agricultural areas.
The customs and habits of the people like bathing, animal washing and disposal of the dead body all add to the pollution of water. 'On the bank of the tank the ignorant and dirty people pass motion (stool) and use them as latrines.
In some cases the liquid refuse from latrines, cattle sheds and the foul contents of drains and from similar places are flown in to the tanks. The tank water is polluted very easily than the well water. If the mouth of the well is just below the level of the surface of the ground, then there is enough possibility of water being polluted.
In such type of wells the washing of the street, latrines, the foul contents of drains and the discharges of animals easily enter in to the well and as a result of which water is polluted. In majority of the cases it is a common practice in our country that very often people wash their dirty clothes and bathe themselves while standing over well and use dirty vessels and dirty ropes for the purpose of drawing water.
Moreover, the wells are not cleaned
The upland surface water derives its impurities from the catchments area, the sources being human habitations and animal keeping or grazing. It is therefore very necessary to keep the catchments area free from human or animal intrusion.
The general belief of purity in the water of mountain streams is often untrue. Even if there are no human habitations there is still a possibility of contamination caused by wild animals the impurities of river water are derived from surface washings, sewage and silage water, industrial and trade wastes, and drainage from agricultural areas.
The customs and habits of the people like bathing, animal washing and disposal of the dead body all add to the pollution of water. 'On the bank of the tank the ignorant and dirty people pass motion (stool) and use them as latrines.
In some cases the liquid refuse from latrines, cattle sheds and the foul contents of drains and from similar places are flown in to the tanks. The tank water is polluted very easily than the well water. If the mouth of the well is just below the level of the surface of the ground, then there is enough possibility of water being polluted.
In such type of wells the washing of the street, latrines, the foul contents of drains and the discharges of animals easily enter in to the well and as a result of which water is polluted. In majority of the cases it is a common practice in our country that very often people wash their dirty clothes and bathe themselves while standing over well and use dirty vessels and dirty ropes for the purpose of drawing water.
Moreover, the wells are not cleaned