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Author: admin, 14.09.2015
When unwanted sound created by human beings hits our ears and disturbs the environment, noise pollution is created. DO YOU KNOW> A study conducted by researchers from the New Delhi-based National Physical Laboratory show that noise generated by firecrackers (presently available in the market) is much higher than the prescribed levels.
The permitted noise level is 125 decibels, as per the Environment (Protection) (second amendment) Rules, 1999. There are several sources of noise pollution that contribute to both indoor and outdoor noise pollution. Use of modern science and technology can help to reduce noise pollution and can help all of us to lead a peaceful life without any interruption. Vehicles should be driven at a limited speed and one should avoid unnecessary use of horns. Use of traffic controls should be there that can smooth vehicle flow to reduce braking and acceleration, and tire design. Noise levels at construction sites can be controlled using proper construction planning and scheduling techniques. Aircraft noise can be reduced to some extent by design of quieter jet engines, which was pursued vigorously in the 1970s and 1980s. Wise and judicious use of resources can help the community to get relieve from such sort of pollution and it can also help us to lead a comfortable life. Introducing the worlds first carbon-fiber motorcycle helmet with Intelligent Noise-Control™ for a saver, quieter ride combined with lightweight, super-strong carbon-fiber construction for unprecedented protection and riding comfort. Senas revolutionary Smart Helmet solves real-world challenges with high-tech solutions to create the optimal riding environment for the open road. Designed by riders, for riders, the Smart Helmet offers all the control of noise-canceling headphones while still allowing you to hear vital audio cues like sirens, traffic, and your RPMs. Sometimes you need to hear your surroundings when you pull over to fuel up or take a rest break, whether it's to hear what someone is saying or simply be aware of oncoming traffic. The optional plug-and-play Bluetooth module snaps into the built-in modular microphone harness so you can make phone calls, listen to your music, or talk to your fellow riders at the touch of a button.
Designed for maximum strength and minimal weight, all styles and sizes of the Sena Smart Helmet feature the same streamlined, structurally integrated carbon-fiber shell.

The EPS foam interior has multi-zone foaming for maximum safety, variable ventilation, and an adjustable multi-zone foam pad system. Noise pollution is excessive, displeasing human, animal or machine-created environmental noise that disrupts the activity or balance of human or animal life. Noise emanating from factories, vehicles, and playing of loudspeakers during various festivals can contribute to outdoor noise pollution, while loudly played radio or music systems, and other electronic gadgets can contribute to indoor noise pollution.
These effects can range in severity from being extremely annoying to being extremely painful and hazardous. Be a good and concerned neighbour by discussing a common problem calmly and in a collaborative spirit to find a common solution. A streamlined, lightweight carbon-fiber helmet with a luxurious fit, ventilated shell, and an Intelligent Noise-Control system to keep you calm, alert, and focused, no matter what the conditions. Studies show that sustained exposure to freeway noise levels above 100 decibels can cause permanent hearing loss, cardiovascular effects, tinnitus, stress, sleep disorders, fatigue, and decreased reaction times. Luckily, Sena's Ambient Mode can easily be switched on with a convenient button on the helmet's exterior, allowing you to hear clearly without removing your helmet. And because the Intelligent Noise-Control™ system significantly reduces wind noise, you can listen at volumes lower and safer than ever before. This extremely lightweight carbon composite safely distributes energy upon impact while simultaneously making it one of the lightest full-face helmets on the market.
The fully removable, washable, and adjustable head liner and cheek pads are made of soft COOL-Quick Dry fabric, resulting in a highly effective cooling and moisture-wicking system. Other sources contributing to outdoor pollution includes construction and transportation systems, including motor vehicle noise, aircraft noise and rail noise. The module analyzes sound information from an array of four networked microphones and adjusts in real time to phase out harmful helmet noise. Noise pollution is a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible. Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential area.
As with other forms of energy pollution (such as heat and light pollution), noise pollution contaminants are not physical particles, but rather waves that interfere with naturally-occurring waves of a similar type in the same environment.

Other sources of noise pollution sources include car alarms, emergency service sirens, mechanical equipment, fireworks, compressed air horns, barking dogs, appliances, lighting hum, audio entertainment systems, electric megaphones, and loud people.
Noise pollution can cause annoyance and aggression, hypertension, high stress levels, tinnitus, hearing loss, sleep disturbances, and other harmful effects.
In the narrowest sense, sounds are considered noise pollution if they adversely affect wildlife, human activity, or are capable of damaging physical structures on a regular, repeating basis. Besides transportation noise, noise can also come from factory appliances, power tools and audio entertainment systems.
Furthermore, stress and hypertension are the leading causes to health problems, whereas tinnitus can lead to forgetfulness, severe depression and at times panic attacks. In the broadest sense of the term, a sound may be considered noise pollution if it disturbs any natural process or causes human harm, even if the sound does not occur on a regular basis.
It also leads to lack of sleep, irritability, indigestion, heartburn, high blood pressure, ulcers, and heart disease. Chiefly, noise pollution comes from barking dogs, loud music, vehicles, aircraft and rail transport, air-conditioners, factories, amplified music and construction work.
Just one noise explosion from a passing truck drastically alters our endocrinal, neurological, and cardiovascular functions in many individuals. 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. If this is prolonged or frequent, the physiological disturbances become chronic and contribute to mental illness. Noise more than 50dB can be very difficult to hear and interpret and cause problems such as partial deafness. Increased noise levels gives rise to a lack of concentration and accuracy at work, and reduce one's productivity and performance. Difficult tasks can be impaired, and instructions or warnings difficult to be heard and interpreted, causing accidents.

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