water pollution in canals

1. WATER POLLUTION IN CANALS
Submitted by
JASNA MAJEED

2. CANALS?

4. • Canal is related to the word channel, and all its
different shades of meaning have to do with
tunnel shaped spaces that carry liquid from one
place to another.

5. ADVANTAGES OF CANALS
• 1. Un-irrigated wastelands can be developed by canal
irrigation, which would increase the quantity of
biomass in the area.
• 2. Economic development can be expedited by
avoiding dangerous droughts. Dependence on rainfall
can be minimized through canal development.
• 3. Canals are fed by rain water received by rivers, and
the water is used for irrigation. Production of crops
needing more water is also possible through canals. As
compared to un-irrigated soils, higher productivity per
hectare is also possible due to canals.

6. • 4. Canal system is a permanent structure, hence only
maintenance is required for getting its benefits for a
long time.
• 5. Canals are multi-purpose where apart from irrigation
hydro electricity generation, navigation, drinking water
supply and fishery development is also done.
• 6. Groundwater level does not go down on account of
canal irrigation, but on the contrary water level
increases, which facilitates digging of wells.
• 7. Canals are also becoming a source of tourist
attraction these days.

7. DISADVANTAGES
• 1. Due to imbalance in distribution of canal water, a
situation of scarcity somewhere and water logging in other
areas is caused due to collection of water there. It makes
the soil unproductive as harmful underground salts and
alkalies come to the surface level due to water logging.
Land can also become marshy there.
• 2. Many diseases are caused due to spread of mosquitoes,
worms and insects on account of stationary water in canals.
• 3. Sometimes efficient canal management results in
excessive production of crops, due to which the farmers are
not able to get suitable price for their product in the
market.

8. • 4. Due to shortage of water in inundational canals,
crops are destroyed for want of water for irrigation.
• 5. Regular maintenance of canals is not done, due to
which sediments are collected resulting in reduction of
capacity of canals.
• 6. Due to excessive economic investment, it is not
practicable to provide canal irrigation to all areas.
Construction of canals also takes more time.
• 7. Many types of social evils are generated in canal
areas. Sometimes, disputes arise for water distribution
etc. resulting in murders and throwing of dead bodies
by the bank of a canal.

10. SIGNIFICANCE OF THE PROBLEM
In our locality we
faced water pollution
in canals.

11. CAUSES OF WATER POLLUTION IN
CANALS
• When farmers fertilize the fields, the chemicals they
use are gradually washed by rain into the
groundwater or surface waters nearby. Sometimes
the causes of water pollution in canals are quite
surprising. Chemicals released by smokestacks
(chimneys) can enter the atmosphere and then fall
back to earth as rain, entering seas, rivers, and lakes
and causing water pollution. That's
called atmospheric deposition. Water pollution in
canals has many different causes and this is one of
the reasons why it is such a difficult problem to
solve.

14. REMEDIAL MEASURES
• Making people aware of the problem is the first step to
solving it.
• Greater public awareness can make a positive difference.
• We can take individual action to help reduce water
pollution in canals, for example, by using environmentally
friendly detergents, not pouring oil down drains,
reducing pesticides, and so on. We can take community
action too, by helping out on beach cleans or litter picks
to keep our rivers and seas that little bit cleaner. And we
can take action as countries and continents to pass laws
that will make pollution harder and the world less
polluted. Working together, we can make pollution less
of a problem—and the world a better place.

15. • Never throw rubbish away anyhow. Always look
for the correct waste bin. If there is none around,
please take it home and put it in your trash can.
This includes places like the beach, riverside and
water bodies.
• Use water wisely. Do not keep the tap running
when not in use. Also, you can reduce the
amount of water you use in washing and bathing.
If we all do this, we can significantly prevent
water shortages and reduce the amount of dirty
water that needs treatment.

16. • Never throw rubbish away anyhow. Always look
for the correct waste bin. If there is none around,
please take it home and put it in your trash can.
This includes places like the beach, riverside and
water bodies.
• Use water wisely. Do not keep the tap running
when not in use. Also, you can reduce the
amount of water you use in washing and bathing.
If we all do this, we can significantly prevent
water shortages and reduce the amount of dirty
water that needs treatment.

17. • If you use chemicals and pesticides for your
gardens and farms, be mindful not to overuse
pesticides and fertilizers. This will reduce
runoffs of the chemical into nearby water
sources. Start looking at options of
composting and using organic manure instead.

18. • If you live close to a water body, try to plant
lots of trees and flowers around your home,
so that when it rains, chemicals from your
home does not easily drain into the water.

19. THANKS