fasadguard.blogg.se - Noise pollution control

in any event, at least every two years.at any time when reasonably requested to do so by the worker’s health and safety representative, and.within three months after the employee starts the work that requires the hearing protection, and.In accordance with the Occupational Health and Safety Regulations 2007 (regulation 3.2.11), employers that are required to provide employees with hearing protection to use in the workplace must provide workers with hearing tests: Noise levels should be regularly monitored and work practices continuously improved to preserve the hearing of workers. Occupational health and safety officers can offer advice and information on reducing noise in the workplace. Use personal hearing protection such as ear plugs or ear muffs.

Try to run noisy equipment early or late in the day when fewer people will be exposed.

Make sure that people spend time working in quiet areas too.

Locate the equipment in a more isolated area, or soundproof the room.

Reducing exposure to excessive noise in the workplace can be accomplished in many different ways: Noise levels can be measured using a sound level meter, which detects the pressure of sound waves as they move through the air. Reducing noise pollution in the workplace If you have to raise your voice or shout to be heard, or if your ears ring or sounds seem muffled afterwards, then the noise level was too loud and harmful. For example, it is not recommended to listen to noises of 109 decibels for any longer than two minutes at a time. The risk of hearing loss increases as the noise becomes louder. Sensitivity to noise differs from one individual to the next, but experts believe that damage to hearing occurs when noise levels are higher than 85 decibels, which is about the loudness of heavy traffic. The loudness of noise is measured in decibels. The parts of the ear that process high frequency sounds are usually the first to be affected. The resulting scar tissue can’t conduct sound. These sensitive hairs are bent, damaged and broken by excessive noise. Hairs on the cochlea sense the vibration and pass on the message to the brain via the cochlear nerve. The vibration is picked up in the inner ear by a small, spiral shaped organ called the cochlea.

The three tiny bones lying on the other side of the eardrum pick up the vibration and pass it on to the inner ear. Sound waves are funnelled from the outer ear into the middle ear, where they vibrate the eardrum. Low frequency sounds have waves that are far apart, while high frequency sounds have waves that are bunched together. The vibration of air molecules makes up a sound wave. increased susceptibility to colds and other minor infections.Associated effects of constant noise pollutionĪpart from damage to hearing, exposure to constant and excessive noise can cause other health problems including: Hearing aids only amplify sounds and can’t replace normal hearing. For most cases of noise-induced hearing loss, there is no cure. Some people exposed to excessive noise develop tinnitus, which is described as a constant ringing sound. Sudden explosive sounds, such as gunshots, can cause immediate damage.

The degree of hearing loss depends on the loudness of the noise and how long you are exposed to it. Excessive noise in the workplace presents a risk of hearing damage and other health problems. This may happen so gradually and painlessly that you may not notice the minor deterioration from one day to the next. Excessive noise levels over a long period of time will damage your hearing.