Introduction about noise pollution: sources, effects and control.

1. Presented by: Arifa Shams
Syyeda Urooj

3. Noise Pollution
 Noise pollution refers to undesirable sound.
 Sound which generates horrible discomfort on ear.
 Also known as Environmental noise or Sound
pollution.

4. NOISE
 Noise
• Any unwanted sound that do not need or want to hear.
• It is measured in decibels dB
• Average noise level is 97.60dB
• Normal speech has a sound level of approximately 60dB
• Sound above 120dB can cause discomfort to ears

6. TYPES OF NOISE POLLUTION
 Continuous Noise
 Intermitted Noise
 Impulsive Noise
 Low Frequency Noise

7. TYPES OF NOISE POLLUTION
 Continuous Noise
 Noise that produced continuously without interruption
 This could came from
 factory equipments
 Heating system
 Ventilation system

8. TYPES OF NOISE POLLUTION
 Intermitted Noise
 It is a mix of quiet and noisy periods
 Most manufacturing noise is intermitted
 Noise level increases or decreases rapidly

9. TYPES OF NOISE POLLUTION
 Impulsive Noise
 Commonly associated with construction and demolition
industry
 Created by
 explosion
 construction equipments such as pile driver

10. TYPES OF NOISE POLLUTION
 Low Frequency Noise
 Sounds lower in frequency than 20Hz

11. CAUSES OF NOISE POLLUTION
 Industrialization
 Poor Urban Planning
 Social Events
 Transportation
 Construction Activities
 Household Chores

12. CAUSES OF NOISE POLLUTION
 Industrialization
 Most of the industries use big machines which produced
large amount of noise
 Various Equipments like Generators, Exhaust Fans
Grinding Mills also produce big noise

14. CAUSES OF NOISE POLLUTION
 Workers in industries and factories wear ear plugs to
minimize the effect of noise

15. CAUSES OF NOISE POLLUTION
 Poor Urban Planning
 In most developing
countries poor urbanization
also play a vital role in noise
pollution which disrupt the
environment of society
 Congested Houses
 Large families share small
houses

16. CAUSES OF NOISE POLLUTION
 Social Events
 Noise is at its peak in most of social events people play
sounds on full volume makes the condition of people
living nearby pretty worse
 Weather it is marriage, parties, worship places loud
sound in markets

18. CAUSES OF NOISE POLLUTION
 Transportation
 large number of
vehicles on roads,
airplanes flying over
houses,
underground trains
produced heavy
noise

19. CAUSES OF NOISE POLLUTION
 Construction Activities
 under construction
activities like mining,
construction of
bridges, dams,
building, stations,
roads, flyovers take
place everyday to
reduce traffic
congestion

20. CAUSES OF NOISE POLLUTION
 Household Chores
 We are surrounded by gadgets and use them extensively
in our daily life
 Gadgets like: TV, Mobile, Mixer grinder, Pressure cooker,
vacuum Cleaner, Washing Machine, Dryer and Air
Conditioners are minor contributions to noise but
affects the quality of life.

22. EFFECTS OF NOISE POLLUTION
 Hearing Problems
 Health Issues
 Sleeping Disorders
 Cardiovascular Disease
 Communication Problems
 Effects On Wildlife

24. EFFECTS OF NOISE POLLUTION
 Hearing problems
 Any unwanted sound that our ear have not been built to
filter can cause problems within body
 Our ears can take a certain range of sound without
getting damaged
 Man made noises such as jackhammers, horns even
vehicles can also be too loud for hearing range

25. EFFECTS OF NOISE POLLUTION
 Constant exposure to loud sounds can easily result in
the damage of our ear drums and loss of hearing

26. EFFECTS OF NOISE POLLUTION
 Health Issues
 Excessive noise pollution in working areas such as
offices, construction sites, bars and even in homes can
influence psychological health.
 Studies show that occurrence of aggressive behavior,
disturbance of sleep, constant stress, fatigue and
hypertension are linked to excessive noise level
 Can cause more severe and chronic health issues

28. EFFECTS OF NOISE POLLUTION
 Sleeping Disorder
 Noise can certainly
hamper your
sleeping pattern and
may lead to
irritation and
uncomfortable
situations

29. EFFECTS OF NOISE POLLUTION
 Cardiovascular Issues
 Blood pressure levels and stress related to heart
problems are on rise due to noise pollution
 High intensity noise cause high blood pressure and
increase heart beat rate as it disrupt normal blood flow

31. EFFECTS OF NOISE POLLUTION
 Communication problems
 high decibel noise can put trouble and may not allow
people to communicate freely this may lead to
misunderstanding
 Constant sharp noise can give you headache and disturb
your emotional balance

32. EFFECTS OF NOISE POLLUTION
 Effect On Wildlife
 Wildlife faces more problems than humans because
they are more dependent on sounds.
 Animals have a better sense of hearing than us since
their survival depends on it.
 Pets react more aggressively in household where there is
constant noise

34. EFFECTS OF NOISE POLLUTION
 Species that depend on mating calls to reproduce are
often unable to hear there calls due to extreme man
made noise
 Some animals require sound waves to echo locate and
find their way when migrating disturbing their sound
signals means they get lost easily.

35. NOISE POLLUTION CAN BE
CONTROLED
 There is no any solution to reduce noise pollution
 On personal level everybody can help reducing noise
in their homes by lowering the volume of the radio,
music system and television
 Removal of public loudspeakers is another way

36. NOISE POLLUTION CAN BE
CONTROLED
 Controlling sound levels in clubs, bars, parties and
disco
 Better urbanization can help to reduce noise
 Machines can be placed away from residential areas
 Moving away from noisy areas.