noise pollution

types of noise

industial

transport

Neighborhood

effects

leads to: contraction of blood vessels, making skin pale, excessive adrenaline in the blood steam

muscle contraction leading to nervous breakdown, tension

change in hormone levels, increases heart rate

health, work efficiency and behaviour

damage to the heart, brain, kidneys, liver. emotional disturbance

psychological and pathological disorders

affect the optical system

pupilary dilation, impairment of night vision, decrease in rate of colour perception

hypacusis, contracting peripheral blood vessel. sleeping disorder, breath and oulse frequency, affecting slumber deepness

ways to combat

noice berriers

traffic management

electric cars

land-use planning & design

low-noise tyres

quiet road surfaces

changing driving styles

building design

building insulation

brake blocks for trains

safe sounds

whisper, conversation, piano, washing machine

caution needed

traffic, power mower, violin, cinema, motocycle, noisy tpys

high risk

music concerts, fireworks, jet taking of

sound insulation and sound proofing of walls, floors

hearing protection devices, ear plugs

noise cansellation devices

quieter products and environment