WELCOME SOLUTIONS TO NOISE POLLUTION

Unlike Other Injuries, there is No Visible Evidence of Noise-Induced Hearing Loss [NIHL] It is not traumatic or usually even noticed when it occurs. Hearing impairment accumulates over time Its effects are realized long after the damage has been done. Worse, Noise-Induced Hearing Loss is Permanent and Irreversible.

However, with Proper Education and Safety Measures

NIHL is 100% PREVENTABLE

What is noise?We often hear from people who have returned from shopping in the market that, there is a lot of noise pollution in the city. They often blame the two, three - and four wheelers besides commercial units for increasing ambient noise pollution. On a special day like festivals, marriage functions, birthday parties etc., we can hear loud speakers drilling the common man with severe noise pollution.

Let us get familiar with some basic concepts pertaining to noise pollution and its control

Noise can be defined as “Clamor” “Din” “Loud Outlay”

Noise (Sound) is a physical disturbance that is capable of being detected by human ear.It is due to any manmade Industrial Activity, Commercial Industrial Activity, Domestic Activity or Natural Activity.Depending upon the noise levels and duration of exposures, various impacts on human beings can be enumerated.

NOISE is an Unwanted Sound

A Noise Problem generally consists of THREE inter-related elements- The Source

The Transmission Path The Receiver

The discrimination and differentiation between sound and noise depends upon the habit and interest of the person/species receiving it and the ambient conditions and impact of the sound generated during that particular duration of time.

Noise may be: Continuous or Intermittent Noise may be:

High Frequency or Low Frequency

EFFECTS OF NOISE POLLUTION Tiredness, Irritation and Impairs Brain Activities, Reduce Thinking and Working Abilities.Disturbances in Sleep

PHYSIOLOGICAL EFFECTS Speeding up pulse and Respiratory Rates. Impair Hearing - Permanently or Temporarily Hearing Damage. Heart Attacks, Hypertension, Deafness

BEHAVIORAL EFFECTS Performance of School Going Children is Poor where Schools are in the Busy/ Traffic Prone AreaIrritation, Learning Disabilities

PSYCHOLOGICAL EFFECTAnnoyance, Tensions in Muscles, Nervous Irritability & Strain

PERSONOLOGICAL EFFECTSDisturbance in Individual‘s Total Personality Make-up, Insomnia, Fatigue, Hypertension, Blood Pressure, Deafness

Have you observed ?? Any change in your personal reactions like annoyance, tiredness, loss of concentration whileexecuting your daily activities? Any noise polluting source in your surroundings? If so, for how much time, you are exposed to the noise levels? Any noise level measurements being taken at your surroundings?

Air borne Noise Levels have been limited in different areas as per notification dated 26th" December-1989 under schedule-III by Ministry of Environment & Forests (MOEF) Govt. of India

NOISE POLLUTION STANDARDArea of Category Noise level

in dB (A)Noise level in dB (A)

6 A.M. - 9 P.M. 9 P.M. -6A.M.

Industrial 75 70

Commercial 65 55

Residential 55 45

Silence zone 50 40

(Ministry of Environment & Forests (MOEF) Govt. of India) Note: Silence zone has been identified as area up to 100 m around Hospitals, Education Institutes, Courts etc. (*dB(A) Leq denotes the time weighted average of the level of sound in decibels on scale A which is relatable to human hearing. A "decibel" is a unit in which noise is measured. "A", in dB(A) Leq, denotes the frequency weighting in the measurement of noise and corresponds to frequency response characteristics of the human ear. Leq : It is an energy mean of the noise level, over a specified period.)

International & National Legislations

Noise limit levels vary from country to country.The ILO code of practice indicates that in the light of present knowledge, the followingvalues may be recommended :Warning Limit Value : 85dBDanger Limit Value : 95dBFurther it adds that No matter for how short a time, a worker should not enter an area where the noise level is 115dB or more without Appropriate Ear Protection.

Maximum Acceptable Levels of Sound Inside Buildings

Place Sound Level ( db)

Hospitals 40 – 50

Schools 45 – 50

Libraries 40 – 45

Radio , TV Studios 25 – 30

Residential Building 45 – 55

Factories 60 – 65

Music Rooms 30 – 35

Court Room 35 – 40

Industrial Areas 50 – 60

Restaurant 40 – 55

Level Exposure

Duration ( Hrs )

Maximum Allowable Level

dB (A)

8 90

6 92

4 95

3 97

GUIDELINES SUGGESTED BY OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION

(OSHA)FOR INDUSTRIAL NOISE EXPOSURE IN REGULAR USE

2 100

1.5 102

1 105

0.5 110

< 0.25 115

Legislation On Noise In IndiaConstitution of India : Right to Life

Environment Protection Act

Noise Pollution Control Rule 2000 under

Environment Protection Act 1996

INDUSTRIAL NOISEIndustrial Noise is largely produced by theindustrial machines. The survey recently conducted by the Oto – Rhino - Laryngology, Madras, revealed that

Industrial Noise Pollution has damaged the hearing ability of nearly 20% workers.The major noise sources are flow of oil, water and gas through pipes, valves etc. The noise level close to valves is in between 80 - 90 dBA. The noise level close 40 mts. from the flare is around 70 dBA.

The general noise level ranges between 70 – 90 dBA

CONTROL TECHNOLGIES AVAILABLEFOR NOISE POLLUTION

To Isolate NOISE At Source:

# The first and simple way to control the noise pollution is insulation# Department for the Maintenance should have a routine checkup to observe the noise generated by every machine of the plant and restrict to its original noise level by replacing bearings, tightening of all loose parts that can vibrate.# Machines should be placed on vibration isolators or mounts.

NOISE Control in Path :

In many cases, noise control at source is very difficult or quite uneconomic. In such cases, noise control is achieved in the path: (a) Putting major noise sources at one place & separating it from quieter area. (b) Using acoustic barriers, sound absorbing linings & sound insulating partitions. (c) Complete or partial enclosure of noisy equipment. (d) Providing silencers on the intake as well as exhaust side of flow machines, like, blowers, fans etc. (e) Insertion of damping material between machine bases and foundations and use of anti vibration mountings. (f) Damping vibration of the crucial parts through the use of the correct fabrication material.

Noise Control at the Receiver End : Wherever it is not possible to reduce noise exposure to the permissible limit at the source or in the path, the workers exposed to high sounds should be provided with suitable Ear Protector.

Receivers can protect himself by:Making use of # Acoustically Closed Cabin # Ear muffs, # Disposable Ear Plugs Or,

CUSTOM MADE

HEARING PROTECTION DEVICES

Conclusion:- We have made the laws relating to noise pollution but

there is need of Creating General Awareness towards the hazardous

effects of Noise Pollution.

In our country the people generally lack consciousness of the ill effects which noise pollution creates and how the society including they themselves stand to beneficiary preventing generation and emission of noise pollution.

Listen Up Electronics India Pvt Ltd. In collaboration with a team of industry experts, has opened

a lab in Noida introducing State-of-the-Art Digital Technology -

Precision Fit ProcessTo REPLACE Traditional Custom Hearing Protection Device fabrication process. Precision fit process solution is based on 3D technology which uses a scan of the ear impression to create a Digital Image.A 3D modelling software is then used to design the Personalized Hearing Protection Device The software is also used to verify the fit & canal direction for optimum comfort, and best acoustic performance.A High-Definition, high quality 3D printer is then used to print ultra-thin layers ultimately creatingthe exact 3D structure which enables a digitally precise fabricated Custom Hearing ProtectionDevice using our Proprietary Process.

Listen Up Electronics India Pvt Ltd. In collaboration with a team of industry experts, have now designed and developed the following

HEARING PROTECTION DEVICES * Sleep Plug ( Canal size ) * Dry Ear Plug * Motorbike Plugs * Solid Ear Plug without filter * Hearing Protection Device with filter (HPD) * Hearing Protection Device with ER filter * Swim Plugs

CUSTOMISED EAR PLUGS – USES & STYLESCustom ear plugs are one of the Best Ways to protect our ears against damage due to noise exposure and water entry. These Ear Plugs are hypoallergenic, so can be used by people with sensitive skin and are available in Bright Colors for children or in discreet tones for adults.

Custom Ear Plugs are made from the shape of your ear, so Only You can wear them. They provide the Best Comfort and the Best Protection against Noise Damage and Water Entry. If looked after properly, they can Last for Years and are ideal for anyone who is Exposed to Noise such as Factory workers, Musicians, Motorbike Riders, or for those whose have sleeping difficulties. For children with grommets or those who can’t get water into the ear canal, swim plugs are an excellent choice for protection against water entry. Communication plugs can be used by security guards, police & musicians to provide comfort and clarity when using communication devices.

Sleep Plug ( Canal size )These plugs are the smallest of the plug types as they sit inthe ear and in the ear canal. They are designed to give protection against noise, reducing sound by up to 25 dB. They are best suited for people who wish for a Sound Sleep without any hindrance of snoring of their partner. It is best suited for Frequent Travelers.

Dry Ear Plug These plugs are also small plug which properly sit in the ear and in the ear canal. They are designed to give protection against water, They are best suited for people who are required to keep their Ears dry due to medical needs.

Motorbike PlugsMotorbike plugs are designed to reduce engine and road noise. They are available in a solid plug giving maximum noise reduction or in a musician style plug with a filter for different amounts of noise reduction. They are comfortable to wear and won’t interfere with your helmet.

Solid Noise Plugs

These plugs are the largest of the plug types as they sit in the ear and in the ear canal. They are designed to give maximum protection against noise, reducing sound by up to 40dB. They are best suited for industrial workers or people who are exposedto loud sounds. They are also suitable for use with motorized gardening equipment and most power tools.

Hearing Protection Device with Filter These plugs can be in TWO SIZES so as to sit in the ear and in the ear canal. They are designed to give maximum protection against noise, reducing sound by up to 15 dB. In Small size and till 22 dB in larger size. They are best suited for industrial workers or people who are exposed to loud sounds.

Hearing Protection Device with ER filterThese plugs are the best of the plug types as they sit in theear and in the ear canal. They are designed to give maximum protection against noise, reducing sound by up to 25 dB. They are best suited for musicians and people who are exposed to different level of sounds.

Swim PlugsThese plugs are the best form of Protective Device which may be used for Swimmers of all age groups. As they are Customised, and are made for an individual person, the chances of water penetrating in the ear is minimised, hence providing safety while swimming. These are made of floatable material, hence shall not drown, if taken out even while swimming.

Advantages of Custom Made Hearing Protection?Comfort One of the problems that many people may face with disposableear plugs is comfort. As they are a universal size, they can sometimesbe too small or too big or don’t sit in the ears correctly. Because custom hearing protection is made from your own ears, you can be assured of the most comfortable fit.

Sealing of the Ear Canal Foam ear plugs are Non – Hygienic as they are being used regularly and cannot be washed. For hearing protection to work effectively, an air-tight seal is required between the hearing protection and the ear canal. As custom protection is made from the shape of your own canals, a secure fit is ensured, providing much more effective protection against noise damage than the disposable type.

To prevent water from entering the ear canal, an Airtight Seal is required between the ear plug and the ear canal. A Good Fit is essential to ensure that water doesn’t leak into the canal.

As custom swim plugs are made from the shape of your ears, a secure fit is ensured, providing the most effective protection against water entry.

Advantages of Custom Made Swim Plugs ?

Thank You.For any further clarification Please contact:

Ajay Mehrotra Director Of Business Development - HPD Listen Up Electronics India Pvt. Ltd. Cell: +91 941 205 9326ajay.mehrotra@listenupindia.com

Nitin Parashar Regional Sales Manager Listenup Electronics India Pvt. Ltd. Cell: +91 921 268 0444nitin.parashar@listenupindia.com