Essay on Noise Pollution: Sources, Effects and Control!
Noise may not seem as harmful as the contamination of air or water, but it IS a pollution problem that affects human health and can contribute to a general deterioration of environmental quality. Noise is undesirable and unwanted sound. All sound is not noise. It may be considered as music to one person and may be noise to another.
Noise is defined as ‘unwanted or offensive sound that unreasonably intrudes into our daily activities’. Sound is measured in a unit called the decibel (dB). The permitted noise level is 125 decibels as per the Environment Protection Rules 1999.
Sources of Noise Pollution:
There are numerous sources but may be broadly classified into two classes such as indoor and outdoor:
Industries/factories, vehicular movements such as car, motor, truck, train, tempo, motor cycle, aircrafts, trains. Construction work defence equipment’s, explosions, playing of loudspeakers during various festivals etc. The higher the speed of an air craft’s the greater the noise pollution.
The invention of supersonic air craft’s has added more noise for the persons who live near aerodromes. Another source of noise pollution connected with aero planes has been scaring away of birds. Satellites are projected into space with the help of high explosive rockets also contributes to noise pollution.
Loudly played radio or music systems, and other electronic gadgets etc.
Effects of Noise Pollution:
a. Emotional or psychological effects — irritability, anxiety and stress. Lack of concentration and mental fatigue are significant health effects of noise.
b. It has been observed that the performance of school children is poor in comprehension tasks when schools are situated in busy areas of a city and suffer from noise pollution disturbance.
c. Interferes with normal auditory communication, it may mask auditory warning signals and hence increases the rate of accidents especially in industries.
d. The effects can range in severity from being extremely annoying to being extremely painful and hazardous lowers workers efficiency and productivity and higher accident rates on the job.
e. Physical damage to the ear and the temporary hearing loss often called a temporary threshold shift (TTS). People suffering from this condition will be unable to detect weak sounds. However, hearing ability is usually recovered within a month of exposure. Permanent loss, usually called Noise Induced Permanent Threshold Shift (NIPTS) represents a loss of hearing ability from which there is no recovery.
Below a sound level of 80 dB. hearing loss does not occur at all. However temporary effects are noticed at sound levels between 80 and 130 dB. About 50 percent of the people exposed to 95 dB sound levels at work will develop NIPTS and most people exposed to more than 105 dB will experience permanent hearing loss. A sound level of 150 dB or more can physically rupture the human eardrum and >180dB can kill a person.
f. In additions to hearing losses, excessive sound levels can cause harmful effect on the circulatory system by raising blood pressure and altering pulse rates.
Noise Control Techniques:
There are 4 fundamental ways in which noise can be controlled:
(1) Reduce noise at the source
(2) block the path of noise
(3) increase the path length and
(4) protect the recipient.
1. Reduce Noise at the Source:
a. Make sure that all openings are acoustically sealed. Noise, lake water rushes out through any cracks or openings. Muffling vehicles and machinery to reduce the noise.
b. In industries, different types of absorptive material can be used to control interior noise. Noise reduction can be done by using rigid sealed enclosures around machinery lined with acoustic absorbing material. Isolating machines and their enclosures from the floor using special spring mounts or absorbent mounts and pads and using flexible couplings for interior pipelines also contribute to reducing noise pollution at the source.
c. Regular and thorough maintenance of operating machinery. We should reduce mechanical run out of shafts. By reducing this source of vibration excitation many components like bearing gears and cans may generate less noise and have generate life. We must improve lubrications. We should install bearings correctly. Improper installation sometimes is the reason for bearing noise problems.
d. Traffic volume and speed also have significant effects on the overall sound. Example: doubling the speed increases the sound levels by about 9 dB and doubling the traffic volume (number of vehicles per hour) increases sound levels by about 3 dB. A smooth flow of traffic causes less noise than a stop-and-go traffic pattern. Thus proper highway planning and design are essential for controlling traffic noise.
e. Establishing lower speed limits for highways that pass through residential areas, limiting traffic volume and providing alternative routes for truck traffic are effective noise control measures.
f. Using efficient flow techniques: for reducing noise associated with high fluid velocities and turbulence.
g. Reducing fluid jet velocities: As jet noise is proportional to the eight power of jet velocity.
2. Block the path of noise:
Through construction of temporary/permanent barriers:
a. Planting of trees around houses can also act as effective noise barriers.
b. Highly absorptive interior finish material for walls, ceilings and floors can decrease indoor noise levels significantly.
3. Increasing the path length:
Increasing distance from the noise source and the recipient offers a passive means of control:
a. Municipal land- use ordinances pertaining to the location of airports make use of the attenuating effect of distance on sound levels.
4. Protect the recipient:
a. Use of earplugs and earmuffs. Specially designed earmuffs can reduce the sound level reaching the eardrum by as much as 40 dB.
Besides these in general making Legislation, Educating and bringing awareness in the people is common for control of any pollution Example: Ban on loud speakers from 10 pm to 6 pm.
Noise pollution or sound pollution refers to the presence of excessive and disturbing noise (from machines, transportation systems, aircrafts, trains, etc) in the environment that is very harmful to the physical and mental health of the living beings on earth.
Noise pollution : Causes of Noise Pollution | Effects of Noise Pollution | Diseases caused by Noise Pollution | How to Control Noise Pollution
Essay on Noise Pollution
Noise pollution has become one of the big problems in India affecting the human lives in many ways. We all should know the causes, effects and most importantly the preventive measures of the noise pollution in order to get prevented from the effects of it. School students generally get this topic to write something according to their own view during the competitions like essay writing, etc. We have provided below some easily written essay on noise pollution under different words limit for students. You can select any noise pollution essay according to your need and requirement.
Noise Pollution Essay 1 (100 words)
Noise pollution is considered as the environmental pollution caused in the environment by the excess level of noise through many sources. Noise pollution is also known as the noise disturbance. Excessive noise is harmful to the health and cause imbalance to the human or animal life. It has been a massive environmental issue in India which needs a proper attention to be solved however it is less dangerous than the water, air and soil pollution. Outdoor noise is hugely caused by the sources like machines, transportation systems, poor urban planning (construction of side-by-side industrial and residential buildings), etc. Indoor noise sources are household machines, building activities, loud music, etc. The most common impairment caused by the noise pollution is the permanent hearing loss due to ear drum damage.
Noise Pollution Essay 2 (150 words)
Normal level of the sound is necessary to maintain the daily lives however undesired sound or noise which is not tolerated by the people, animals or plants causes noise pollution in the environment. Noise is commonly called as the unwanted sound created by many industrial or non-industrial sources used in the daily life in our surrounding. High level sound creates unpleasant effects and discomfort to the health especially to the ears.
Unwanted sound generally interferes with the daily routine activities like sleep in night, conversation, hearing ability, feeling of well being, etc. Water animals are also affected by the noise pollution created by the noise of submarines and big ships in the ocean. Forest animals have been affected to a great extent due to the chain-saw operations (create extreme noise) by timber companies. Common sources of the noise pollution are household gadgets, transport vehicles, jet planes, helicopters, industrial machines, etc. According to the World Health Organization, industries must limit their sound production by 75 dB.
Noise Pollution Essay 3 (200 words)
Noise pollution is the pollution caused by the high and unsafe level of noise in the environment causes lots of health disorders to the human beings, animals and plants. Common problems caused by the noise pollution are stress related illnesses, anxiety, communication problems, speech interference, hearing loss, lost productivity, sleep disruption, fatigue, headache, irritability, nervousness, weakness, reduce sensitivity to sound which our ear receive to maintain body rhythm, etc. It causes gradual impairment to the hearing ability over a long period of time. Continuous exposure to high level sound causes permanent damage to the eardrum.
High level of the noise causes huge nuisance, injuries, physical trauma, bleeding around brain, large bubbles in organs and even death to the marine animals specially whales and dolphins as they use their hearing ability to communicate, find food, defend and survive in water. Source of noise in the water is navy submarine’s sonar which can be felt around 300 miles away. The consequences of the noise pollution are more dangerous and worrying in the near future.
There are many preventive measures of the noise pollution, some are like promoting soundproof rooms construction in the industries, industries and factories should be away from the residential building, repairing of motorbikes having damaged exhaust pipes, ban of noisy vehicles, airports, bus, railway stations and other transport terminals should be far from the living places, declaring silence zones near educational institutes and hospitals, allowing more vegetation along with roads and residential areas in order to reduce noise pollution by absorbing sound.
Noise Pollution Essay 4 (250 words)
Noise pollution is caused by the high level of unwanted sound in the environment which causes pain. Some of the main sources of the noise pollution are like noise generated by the road traffic, air craft noise, railroads noise, noise generated by the construction (of buildings, highways, city streets, flyovers, etc), industrial noise, noise created in home on daily basis (due to electrical home appliances, plumbing, generators, air conditioners, boilers, fans, etc), and noise from consumer products (like household equipments, kitchen appliances, vacuum cleaners, washing machine, mixer, juicer, pressure cooker, TV, mobile, dryer, cooler, etc).
In some countries (highly populated countries like India, etc) poor urban planning also plays vital role in the noise pollution as this planning includes the construction of congested houses having large families in small space (causing fight for parking, fights for basic requirements, etc) lead to the noise pollution. New generation people play music in full volume and dance for late night causing lots of physical and mental disturbances to the neighbors. High level of noise causes loss of normal person’s ability to hear properly. High level of noise slowly affects the health and acts as slow poison.
It hugely affects the wildlife, lives of plants, and human beings. Normally, the ability of our ear is to accept the only certain range of sounds without making any damage to the ear. However, our ear cannot bear the regular exposure to loud levels of noise and get damage to the ear drums which results in the temporary or permanent loss of hearing. It also causes other disorders like sleeping disorders, fatigue, weakness, cardiovascular issues, stress, high blood pressure, communication problem, etc.
Noise Pollution Essay 5 (300 words)
There are various types of pollution in the environment, soil pollution is one of them and have become more dangerous to the health. It has become so dangerous that it can be compared to the other most dangerous problems like cancer, etc in which slow death is sure. Noise pollution is the dangerous gift of modern living style and increasing level of industrialization and urbanization. If regular and effective actions are not taken to control, it can be very serious to the future generations. Noise pollution is the pollution caused by the noise due to the increased level of unwanted sound in the environment. It is a big potential hazard to the health and causes huge level of communication problems.
High level of noise brings irritation in the behavior of many people especially diseased, old people and pregnant women. Unwanted sound causes deafness problem and other chronic disorders to the ear like damage to the ear drum, ear pain, etc. Sometimes high sound music pleases the listeners however irritates other people. Any undesired sound in the environment is injurious to the health. Some of the sources participating highly in the noise pollution are industries, factories, transportation, traffic, aeroplane engines, train sounds, home appliances, construction, etc.
The noise level of 60 db is considered as the normal noise however, noise level of 80 db or above become physically painful and harmful to the health. Cities having high noise quantum are Delhi (80 db), Kolkata (87 db), Bombay (85 db), Chennai (89 db), etc. Limiting the amount of noise to a safe level has become very necessary for the life on the earth as undesired noise affects the health of human beings, plants and animals too. It is possible through the general awareness among public about the noise pollution, its main sources, it’s dangerous effects, as well as all the possible preventive measures to get prevented from the noise pollution.
Noise Pollution Essay 6 (400 words)
Noise pollution is caused by the noise when the level of noise gets increased than the normal level in the environment. Excessive amount of noise in the environment is unsafe for the living purpose. Unpleasant sound causes various disturbances in the natural balance. High volume noises are unnatural and create difficulty in escaping those generated noises. In such a modern and technological world, where everything is possible through the electrical appliances at home or outside the home, the risk of noise has been increased to a great extent.
Increasing the demand of urbanization and industrialization in India is causing major exposure of people to the unwanted sounds. Understanding, planning and implementing strategies to get prevented from the noise pollution has been necessary to curb within time. The sounds we make in our everyday life like loud music, unnecessary use of television, phone, traffic, dog barking and etc noise creating sources have become part of the urban culture as well as most disturbing things causing headache, sleep disturbances, stress, etc. Those things causing disturbance to the natural rhythm of life are called as dangerous pollutant. Following are the causes or sources and effects of the noise pollution:
Causes of Noise Pollution
- Industrialization is putting our health and life at risk because all the (big or small) industries are using big machines producing high pitch sound in large amount. Other equipments (compressors, generators, exhaust fans, grinding mills) used in the factories and industries also produces big noise.
- Regular social events like marriages, parties, pub, club, disc or place of worship, temples, etc create nuisance in the residential area.
- Increasing transportation in the cities (vehicles, aeroplanes, underground trains, etc) produces heavy noise.
- Regular construction activities (including mining, bridges, building, dams, stations, roads, flyovers, etc) involve big equipments creating high level of noise.
- Use of household appliances in our daily life is also the main reason noise pollution.
Effects of Noise Pollution
- Noise pollution causes various hearing problems (damage to ear drums and loss of hearing) because of the unwanted sound.
- It reduces ear sensitivity to the sounds required to regulate body rhythm.
- It affects the psychological health and causes the occurrence of aggressive behavior, sleep disturbance, stress, weakness, fatigue, hypertension, cardio-vascular diseases including other severe and chronic health issues in later life.
- It creates communication problems and lead to misunderstanding.
- Affects wildlife and makes pets more aggressive.
General awareness should be increased among people and all the rules should be followed seriously by everyone in order to control the unsafe sound level in the environment. Unnecessary use of things generating high pitch sound should be reduced in the home or outside the home like clubs, parties, bars, discos, etc.
Noise Pollution Essay 7 (800 words)
Noise pollution is the pollution caused by the various noise sources whether by the industrial or non-industrial affecting the human beings, plants and animals health in many aspects. Regularly increasing level of the noise pollution is keeping the lives of people of present generation and coming generations at high risk. I have discussed below the sources, effects, legal aspects control noise pollution and conclusion of the noise pollution.
Following are the sources of noise pollution
The level of noise pollution has been increased a lot in India by the urbanization, modern civilization, industrialization, etc. The spread of noise is caused by the industrial and non-industrial sources. Industrial sources of noise include the use of big machines of high technologies working at high speed and high level of noise intensity in the various industries. Non-industrial sources of noise include noise created outside the industries such as through the transport, vehicles traffic and other means by people. Non-industrial source of noise can be natural or man made. Some of the industrial and non-industrial sources of noise pollution are mentioned below:
- Noise created by the low flying military aircraft has also added noise pollution to the environment to a great extent.
- Road traffic noise is increasing day by day in the city because of the motors and exhaust system of vehicles like trucks, buses, autos, motorcycles, personal cars, etc. Tall buildings in the cities cause noise to resound in that area for some time.
- Industrial noise created by the manufacturing plants because of the use of motors, compressors, fans, etc.
- Construction noises created by the construction of tall buildings, roads, highways, city streets, etc through the use of pneumatic hammers, bulldozers, air compressors, dump trucks, loaders, pavement breakers, etc.
- Rail roads noise (from locomotive engines, whistles, horns, switching or shunting operations in the rail yards) are also very effective in the creating high level of noise pollution as they create peak level of noise of around 120 dB to the 100 feet distance.
- Noise created in the building because of the plumbing, generators, boilers, household equipments, music, air conditioners, vacuum cleaners, kitchen appliances, fans, and other noisy activities in the neighborhood.
- Another source of noise pollution is the use of variety of fire crackers (high sound generating) during the festivals and other family occasions.
Following are the effects of noise pollution
Noise pollution highly affects the health of human beings, animals and properties. Some of are mentioned below:
- Increasing noise pollution day by day is decreasing the efficiency and quality of work of human beings.
- Noise pollution reduces concentration level as high level of noise causes fatigue and tiredness.
- Hugely affects the pregnant women and cause irritation and abortion.
- Causes various diseases (high blood pressure and mental illness) to the people because it disturbs the peace of mind.
- High level of noise decreases quality of work and thus causes lack of concentration level.
- It may cause temporary or permanent deafness because noise level of 80 to 100 db is unsafe for the people.
- It also damage historical monuments, old buildings, bridges, etc because it weakens the structure by creating dangerous waves which struck to the walls.
- Animals lose control on their mind and can be more dangerous because high level noise damage their nervous system.
- It also affects the plants and causes poor quality crops production.
Following are legal aspects to control noise pollution
- Constitution of India guarantees right to life, right to information, right to religion and noise.
- Section 133 empowers human being to remove a public nuisance on a conditional or permanent order.
- Noise Pollution Control Rule 2000 under Environment Protection Act 1996 involves controlling the growing problem of noise pollution.
- Factories Act Reduction of Noise and Oil of Machinery limits for noise exposure in the work zone.
- Motor Vehicle Act involves the use of horn and change of fault engines.
- Indian Penal code deals with the health and safety issues caused by the noise pollution. One can be penalized under law of torts.
Increasing level of noise pollution has created the urgent need of general awareness about the sources, effects and preventive measures of the noise pollution. High level of noise should be prohibited in the areas like working places, educational institutes, residential areas, hospitals, etc. Young children and students should be motivated to not get involved in the high sound producing acts like use of high sound generating equipments and instruments on the occasions. Use of high level sound generating fire crackers should be reduced during the occasions like festivals, parties, marriages, etc. Subjects related to the noise pollution should be added into textbooks and activities can be organized in the schools like lectures, discussion, etc so that new generations can be more aware and responsible citizens.
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