2. Table of Contents
• Drinking water
• Freshwaters
• Glaciers
• Groundwater
• Water shortage
• Water in Africa
• What to do to save water?
3. Drinking water
• Drinking water or potable water is water safe
enough to be consumed by humans or used with
low risk of immediate or long term harm. In
most developed countries, the water supplied to
households, commerce and industry meets
drinking water standards, even though only a
very small proportion is actually consumed or
used in food preparation. Typical uses (for other
than potable purposes) include toilet flushing,
washing, and landscape irrigation.
4. Freshwaters
• Freshwaters represent only about 3% of all
water resources on Earth, and their size is
estimated to be approx. 35 million m³. The
second largest source is groundwater, which
accumulate approx. 29.6% of the resources,
and the river, sweet lakes and shallow
groundwater accounts for only 0.4% of the
total volume of freshwater.
5. Glaciers
• Interestingly, the largest cluster in the form of
glaciers and snow cover on Antarctica.
Scientists estimate that there are close to 61%
of all the freshwater on the planet, and the
remaining glaciers and snows in the world
gather 9% water.
6. Groundwater
• The second largest source is groundwater,
which accumulate approx. 29.6% of the
resources, and the river, sweet lakes and
shallow groundwater accounts for only 0.4%
of the total volume of freshwater.
7. Water shortage
• Most countries in the world suffer from water
shortage, only a few have known. surplus. This
is an example. Norway, which is due to the
relatively small population and the climate is
cool temperate waters in abundance.
8. Water in Africa
• The worst situation is in Africa and some Asian
countries. Poland on the background does not
come out well - is one of the poorest countries
in Europe in the water, and its use is growing.
On average, in Europe on one man's fall 5100
m³ per year of life-giving fluid, while in Poland
only 1,700 cubic meters.
9.
10. What to do to save water?
- Take a shower instead of a bath
- When brushing your teeth, turn the water flowing
from the tap to rinse the teeth use the water from
the cup. Those skilled calculated that the teeth
washing under running water to 9 liters of water
per minute.
- Check that no leakage: water meters and
installation of water supply to taps or toilets;
Replace worn seals in the fittings, check for leaks in
the toilet cistern. Dripping a drop of water every
second, the weekly losses of up to 90 liters of water.
