Though we are floating on water, the usable water is limited. It is agreed that, in proportion, one third of earth is water and remaining is land. But the source of usable or drinking water is very less. On top of that if we waste this limited source, definitely we will face difficulties in the future.
So, how many liters of water require for the survival of a person each day?
There is no direct theory of requirement of water of each person. It depends on the environment of that country or location. In USA on an average people drink less than three liters of water every day. On the other hand, many people drink 16 liters of water every day where the environmental condition is very hot.
If we consider 5 liters’ average use, the total drinking water requirement everyday on earth will be like below.
Current population= 7639404805
Average use= 5 liters
Total drinking water requirement=38197024025 liters
The above number is definitely huge. So, what are the sources to get this large amount of drinking water. Let’s see the sources-
Underground water
Surface water(Pond, River etc)
Rain water
Biological sources of water such as plants and animals
If you see the above main sources of drinking water, that is very limited. On top of that, some cases many of these sources water got contaminated and not possible to drink.
For example, surface water like river, lake or pond are frequently getting polluted from industrial waste which is not possible to drink. Even with the touch of skin, this water cause carcinogenic effect.
So, what is left?
If you analyze, our main source of pure drinking water is underground water. If we use this source excessively, the source will be reduced within short time. Besides this, we are also wasting the water than we need.
Let’s see the possible areas of water wastage-
---Leakage of water from water supply pipeline
---Overflow of water from tank or water reservoir kept in rooftop
---During washing the dishes of cloths
---Washing the car
---Leaking of water from the pool
---Watering the desert
---Poor sanitation system
---Increase of earth temperature
---Deforestation
If we review the above points, some areas we can work to prevent the losses of our fresh water. There was a survey about the uses of water which denotes that we use 64% of water for irrigation purpose, 11% for personal use, 21% in industrial use to produce different products and finally remaining 4% is unusable as evaporated in different processes.
Last but not the least, if we change our habits of wasting, we can save a lot. Only willingness is required. For example, most of the cases we wash the dishes or cloths by opening the water tap. Same thing applies when washing our hands and legs. If we use the open and close technique as and when required, can save a lot of water. This is an example only. We can take this type of small initiatives to save the water.
Thanks for stopping by.