NOISE POLLUTION

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NOISE POLLUTION
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About NOISE

• It is difficult to define the concept of NOISE
  because any sound can be unpleasant depending on
  the physical and physical conditions of the
  receptor.
• We can define NOISE as a unarticulated,
  crosstalk, more or lees deep and always
  unpleasant sound.

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SOUND and LOUDNESS LEVEL
SOUND is the loudness sensation which is received
by acoustic nerve through the different
structures of the ear. LOUDNESS LEVE (I) is the
quantity of energy (E) transported by a wave in a
time unit (t) and area (S). To calculate the
loudness level we can use the following
formula The loudness (in honour of Graham
Bell) is measured in bel or in submultiples
called decibel (dB). The lowest loudness level
is 0dB and more than 120dB the loudness sensation
is painful.
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NOISE sources
According to WHO (World Health Organisation) the
main sources of noise are the following.
INDUSTRY the machinery used is the principal
source of noise in industrial activities. More
power, more noise. TRANSPORTS specially the road
transport, depending on the speed and way
characteristics. BUILDING activities. The
machinery used in building activities causes
noise. DOMESTIC activities, as cleaning, TV and
radio sets, appliances, family life, pets, pipes,
tanks which produce private and uncontrolled
noises. Other INDIVIDUAL sources related to
leisure time as cafes, pubs, restaurants,
discos, fairs, etc..
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Values for Community NOISE
Source WHO
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NOISE POLLUTION effects
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Solutions to NOISE POLLUTION (I)

• CORRECTION MEASURES These initiatives are based
  on the noise limitation and reduction in the
  emission source, and on the exposed population
  protection. The measures can be
• Administrative Regulations intended to establish
  the emission minimum levels of noise according to
  its origin
• Direct actions about emission sources, how to
  limit the activity level or to reduce the noise,
  geographical isolation of noisy activities,
  building soundproofing, etc.

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Solutions to NOISE POLLUTION (and II)
PREVENTIVE MEASURES Initiatives based on plan
intended to prevents noise pollution

• Land use planning restricting certain activities
  to in specific areas
• Urban planning, building under sustainability
  criteria suitable location and distribution of
  housing and other of similar nature
• Environmental awareness and education addressed
  to aware population about the noise, problems
  and effects
• Environmental impact studies intended to help
  the decision makers in the policies design,
  specially in land use planning and location of
  industrial activities.

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NOISE POLLUTION