Water and Air pollution for engineering students of Environmental Study subject. It is specially for the GTU students. It is latest presentation. it is made about half year ago.

2. Prepared By:
 1. Patel Mit R.
(140760109044)
2. Polara Aarika
(140760109046)
3. Prajapati Pravesh
(140760109047)
4. Patel Mit K.
(140760109043)
Guide By.:
Prof. Miten Godhania
&
Prof. Kakadiya Krishna

4. Pollution
Water
Air
Solid
Waste

5. Air pollution is defined as the presence of
unwanted and undesirable foreign particles and
gases in the air which may have adverse effects on
human beings , plants , vegetation's and important
structures.
Air pollution is of public health concern and can
occur as :
1. Indoor air pollution Micro scale
2.Outdoor air pollution Meso scale
3.Air pollution at global level Macro scale

7. How Why
A cloud of smoke
from the exhaust
of a vehicle
Increasing traffic
Industrialization Growing cities
Apathetic people Rapid economic
development
Cigarette smoke
Burning leaves

8. How
• Toxic substances dissolve in
water or gets deposited on
the bed.
• Toxic substances enter lakes,
rivers, streams, etc.
• Pollutants go down into the
ground.
Sources
• City sewage
• Industrial waste
• Agricultural run-
off

9.  According to W.H.O, an increase in any of the
constituents of the atmosphere which is
harmful to the living beings and their
environment, is known as air pollution
The view from the space

10.  Photo Chemical Smog  Photo Chemical Smog

12. Burning of Fire Wood Chimneys

14.  Effect on human health
 Effects on vegetation.
 Effects on building and monuments.
Effects of Air Pollution
St. Paul Cathedral

15.  Air pollution can be controlled by a
thorough understanding of its causes.
 Establishment of industries away from the
towns and cities.
 Increasing the length of the chyeysmn in
industries.
 Growing more plants and trees.
 Use of efficient engines in automobiles.
 Use of smokeless choola.
 Use of petrol without lead (Unleaded petrol)

16. . The UNO must stop nuclear tests

17.  Effluent from various industries, Sewage
containing domestic waster and pesticides
from agricultural lands are finding their way
into water bodies leading to water pollution.
 Causes of Water Pollution: Water pollution is
mainly due to the following causes.

18.  Industrial wastes
 Sewage water
 Agricultural wastes
 Release of Superheated water
 Addition of waste and oil from refineries

19. Sewage water

21.  Industrial pollutants like mercury, chromium,
cadmium and lead are poisonous. They are also
capable of entering the food chains and cause
diseases in man, Mercury is known to cause a disease
called Minimart.
 Organ chlorine pesticides like D.D.T. in the
agricultural wastes are non-degradable and move
along the food chains. It may lead to bio
magnification.
 Some industrial effluents can cause changes in color,
odor and taste of water in the natural water bodies.
Contamination of water also leads to spread of water
borne diseases such as cholera, amoebiasis and other
diseases.

22. Sewage Treatment

23. • Encourage your
family to walk more
• Take the school bus
• Reduce the amount
of spray bottles
• Do not burn leaves in
your yard- put them
in a compost
• Keep your family
cars in tune
• Put catalytic
converters on cars
• Share your room
with others when the
air conditioner is on
• Take care of your
trees

24. •Keep lakes clean
•Take your used motor oil to a drop off place
•Use latex paint instead of oil and rinse your brushes
in the sink rather than the yard
•Fill a spray bottle with soapy water instead of bug
spray
•Plant trees to prevent soil erosion
•Keep litter, pet waste, leaves, and grass clippings out
of gutters and storm drains.

25. Reduce
ReuseRecycle