Noise Pollution is defined as any undesirable human or machine created noise which disturbs human or animal activity or balance. It is measured in decibels (dB) which is a logarithmic ratio of sound pressures. Prolonged exposure to loud noise can cause permanent hearing loss, annoyance, stress, and disrupted sleep and human performance. Noise pollution affects animals through hearing loss, physiological stress, and disruption of behavior and ecosystems. Plants are also impacted through reduced growth. Control measures include reducing noise at the source through improved machinery and mufflers, zoning of industrial areas away from homes, sound insulation of buildings, use of ear protection, legislative bans on loud noises, and planting trees.
This ppt contains the information about environmental noise pollution. ppt contains information related to noise pollution, sources of noise pollution, their types, different noise levels, effects of noise pollution on animals as well as on humans and also contains the tips for prevention of noise pollution.
This ppt contains the information about environmental noise pollution. ppt contains information related to noise pollution, sources of noise pollution, their types, different noise levels, effects of noise pollution on animals as well as on humans and also contains the tips for prevention of noise pollution.
Any unwanted, disturbing or harmful sound that impairs or interferes with hearing, causes stress, hampers concentration and work efficiency or causes accidents called noise pollution.
The present generation and coming generation have to solve three grave problems namely population, poverty and pollution.
Pollution is the most dangerous problem and Noise pollution is the one of them.
The Noise Pollution is a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible.
Effects of Air Pollution on human beings, plants and animals and Properties. Global
effects-Green house effect, Ozone depletion, heat island, dust storms, Automobile pollution sources and control, Photochemical smog, Future engines and fuels
Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing disease, death to humans, loss of breath, damage to other living organisms such as food crops, or the natural or built environment. Air pollution may come from anthropogenic or natural sources.
Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems.
Definition, Composition of atmospheric air, Classification and sources of air
pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.
Any unwanted, disturbing or harmful sound that impairs or interferes with hearing, causes stress, hampers concentration and work efficiency or causes accidents called noise pollution.
The present generation and coming generation have to solve three grave problems namely population, poverty and pollution.
Pollution is the most dangerous problem and Noise pollution is the one of them.
The Noise Pollution is a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible.
Effects of Air Pollution on human beings, plants and animals and Properties. Global
effects-Green house effect, Ozone depletion, heat island, dust storms, Automobile pollution sources and control, Photochemical smog, Future engines and fuels
Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing disease, death to humans, loss of breath, damage to other living organisms such as food crops, or the natural or built environment. Air pollution may come from anthropogenic or natural sources.
Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems.
Definition, Composition of atmospheric air, Classification and sources of air
pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.
This slides tells about what are the consequences of noise;hearing loss and how it affects human being;protective devices for minimizing the risk level.
Farhat naz mphil ph environmental and occupational healthDrFarhat Naz
it contains bassic definition of noise vs sound, noise pollution, sources, factors affecting health whether human or animal, controlling measures of noise pollution, mitigation and legislation for noise pollution.
Though, noise is a controllable entity of the environment, on several occasions it is found to be uncontrollable and create severe impacts on life and induce unpleasant circumstances.
Noise pollution is a public nuisance to the environment.
Suicide Prevention through Architecture (Building) and City PlanningGAURAV. H .TANDON
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Accessing The Potentials Of CPTED Principles In Addressing Safety Concerns Of Suicide Prevention In City Planning
Suicide Prevention through Architecture (Building) and City PlanningGAURAV. H .TANDON
Suicide Prevention through Architecture (Building) and City Planning
Accessing The Potentials Of CPTED Principles In Addressing Safety Concerns Of Suicide Prevention In City Planning
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“How a small Village in Maharashtra, India teaching importance of Digital detoxing to Mega Smart cities of India”
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“How a small Village in Maharashtra, India teaching importance of Digital detoxing to Mega Smart cities of India”
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
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for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
2. Noise Pollution
Definition
• “Noise is define as any undesirable human or
machine created noise which disturbs the activity or
balance of human or animal life”.
3. Terminology used in noise pollution
• Frequency: Frequency is the no of cycles
repeated in unit time duration. Its unit is
cycle/sec or Hz ( 1 Hz= 1 Cycle /sec)
• Intensity: Amount of sound energy received /
sec is known as intensity of sound. Its Unit is
decibel ( dB).
4. • Decibel: Decibel is define as the logarithm to
the base 10 to ratio of two intensities
Lt=10 log 10 (I/I0) dB
Where, I= Measured Intensity
I0= Reference Intensity
Lt= Level of noise in dB
5. What is Noise?
• In simple terms, noise is unwanted sound. Sound is a form
of energy which is emitted by a vibrating body and on
reaching the ear causes the sensation of hearing through
nerves.
• Sounds produced by all vibrating bodies are not audible.
The frequency limits of audibility are from 20 HZ to
20,000 HZ.
• A noise problem generally consists of three inter-related
elements- the source, the receiver and the transmission
path. This transmission path is usually the atmosphere
through which the sound is propagated, but can include
the structural materials of any building containing the
receiver
6. The Sound of Human Speech is mainly in the range of 300 to 3000 Hz
10. Mechanism of Hearing
• The Science of Human hearing and sound is called human
acoustics. Sound waves set vibration in the ear drum which is
made up of membrane In the upper ear. The vibration in the Ear
drum induces movement of three small soft bones in the middle ear
behind the ear drum.
• The movement of the soft bones pass through viscous fluid in the
inner ear creating oscillation of Fluid. These oscillation then
reaches the auditory nerves and finally transmitted to the brain.
• The oscillation or sound are identified and interpreted in the brain,
which has capacity to analyze sound into different frequency.
• Human detectable frequency range is 20 to 20000 Hz.
• Sensitivity of the Ear varies from person to person, with aging
hearing power decreases. The ear is susceptible to damage if it
receives high intensity noise.
11. Measurement of Noise ( Sound)
• The Intensity of Sound is measured in terms of
Sound pressure Level and common unit is decibel
• Decibel (dB) = 10 log 10 (I/I0)
• Thus dB measures how much intense is the
sound as compared to reference intensity
• The Sound pressure level ( SPL) in dB is Def n as
• SPL= 20 log 10 (P/P0)
• Where,
• P= Measured pressure
• Po= reference pressure ( 2 x 10 -5 N/m2)
12. • Noise Level in Decibel is measured with an
instrument called sound level meter. It consists of
3 internationally accepted weighing network
• The weighing networks are electronic filter
circuits build into the meter to weaken certain
frequency. They permit the sound level meter to
respond more to some frequency than to others
with prejudice something like human ears
• There are 3 weighing scales
• A weighing scale- Severely filters the frequency
• B weighing scale- Moderately filters the
frequency
• C weighing Scale- Hardly filters frequency
13. A weighing Scale (dB A)
• The sensitivity of human ears depends on the
frequency or pitch of the sound. We hear some
frequency better than others. e.g. If a person hears two
sounds of same sound pressure but different intensity
one sound may appear louder than the other. This
happens when we hear high frequency much better
than lower frequency noise.
• An A-weighing filter, adjusts the measured sound level
to correspond to this peculiarity of human hearing. It
filter out low frequency or pitches.
15. Sources Of Noise
Major Sources of Noise:
Traffic Noise: Automobile revolution
in urban areas are proved to be a
big source of noise pollution.
Increase in traffic has given rise to
traffic jams, where the repeated
hooting of horns by drivers create
noise pollution. Air crafts creates
serious problems in big cities like
Mumbai & Delhi
• Heavy truck, buses, trains,
motorcycles, jeeps, other vehicles
are responsible for traffic noise.
16. Industrial And Construction
Machinery Noise:-
• Factory equipments, generators, drills,
road rollers, and similar machinery
also make lot of noise.
• Public address System:- Public
system contribute in its own ways
towards noise pollution by using loud
speakers for religious functions, birth,
marriage, election for commercial
advertising
• Household:- The household activities
will contribute for indoor noise
pollution domestic gadgets like
pressure cookers, A.C, Vacuum
cleaners, mixers, washing machines
are major source of noise at house
hold level. Entertainment equipments
like radio, music system, T.V. Will
contribute toward noise pollution
17. Defense Exercises:- Tanks, launching of rockets,
explosion, military exercises, aero planes,
shooting ranges are adding toward noise
pollution.
19. Effects of Noise pollution
• Noise can do Physiological and or /
Psychological damage if the volume
is high or if exposure is prolonged.
• Common effects of Noise pollution
are:
• Hearing Loss: Loud noise damages
fine hair cell in the ear. The
vibration of these hair cells is
responsible for hearing of Sound by
us, Since our body cannot replace
damaged hair cells. Permanent
Hearing loss is caused by long term
exposure to loud noise.
20. Annoyance: It creates
annoyance to the
receptor due to sound
level fluctuations
Physiological effects:
• The Physiological effects
like breathing difficulty,
rise in blood pressure,
migraine, headaches,
constriction of blood
vessels and even heart
attacks.
.
21. Effects of Noise pollution
Human performance: The working of humans
will be affected as they will lose their
concentration
Nervous System: It causes pain ringing in ears,
feeling of tiredness, thereby effecting
functioning of human system
22. Sleeplessness: It affects the sleeping thereby
inducing the people to become restless and
loose concentration and presence of mind
during their activities.
23. Effects on animals
• Noise can cause serious damage to wild
life. Ways in which animals are adversely
affected by noise pollution includes.
• Hearing loss
• Masking: Masking is the inability to hear
important environmental clues and
animal signals
• Physiological effects: such as increase in
heart rate, respiratory difficulties and
stress.
• Behavioral effects:-Which could result in
abandonment of territory and loss of
ability to reproduce.
• Ecological effects: It leads to migration of
birds which disturbs the ecosystem
24. Effects on plants
• The production capacity or growth of plant is
affected due to high level noise.
Damage to material:
The building and material may get damage by
exposure to infrasonic/ ultrasonic waves and
even get collapsed.
25. Control of Noise Pollution
• Noise is not only a nuisance but a
serious environmental problem and
a health hazard. Like all other
pollution, noise pollution is needed
to be controlled.
• Noise pollution can be effectively
controlled by taking following
measures.
26. Control of Noise Pollution
Control at receivers end
For people working in noisy areas ear protection aids like
ear plugs, muffs, noise helmets, head phones etc should be
provided it reduces occupational exposure.
Controlling at source
This is only possible if working method is improved.
Design new machines to replace noisy ones. Proper
lubrication and better, maintenance of machines. Installing
noisy machines with sound absorbing materials. Using
Silencer to control noise from automobiles etc.
27. Zoning
Increased distance between source and receiver by zoning of
noisy industrial areas like bus stand and railway stations
away from silence zones near residential areas, educational
institutions and hospitals.
Sound Insulation
A) Sound insulations can be done by constructing windows
with more than one panes of glass and filling the gap with
sound absorbing material.
B) Acoustical tiles, perforated plywood can be fixed on wall,
ceilings, floors to reduce noise.
29. Control of Noise Pollution
Planting of Trees
Planting of trees and shrubs along roads, hospitals,
educational institutions help in noise reduction to a
considerable extent.
Legislative measures
Strict legislative measures need to be enforced to control
the nuisance of noise pollution some of the measures are
A) Minimum use of loud speakers, near silence zones.
B) Banning Pressure horns in automobiles
C) Framing a separate noise pollution act.