NOISE POLLUTION Video Lecture - Class 10

noise pollution noises unwanted sound
sound is a form of energy which is
emitted by vibrating body and on
reaching the ear causes the sensation of
tearing through nerves
according to experiments when the
loudness of noises is about 90 decibel
man's visual receptors cells sensitivity
decreases rapidly and the reaction time
so faint light is lengthened when the
loudness reaches 95 decibel about 40% of
people get mid races and blurred vision
sources of noise pollution one road
traffic to aircraft three trains for
industry or construction work fight
domestic appliances sakes adult voices
seven radio or TV eight bells
or lab effective noise pollution noise
includes a severe impact on humans and
on living organisms physiological
effects the physiological features like
reading amplitude blood pressure
heartbeat rate pulse rate blood
cholesterol are affected loss of hearing
long exposure to high sound levels
caused loss of hearing human performance
the working performance of workers or
humans will be affected as they'll be
losing their concentration
nervous system it causes pain ringing in
the ears feeling of tiredness day by
affecting the functioning of human
system sleeplessness it affects the
sleeping thereby inducing the people to
become restless and lose concentration
and presence of mind during their
activities damage to material the
buildings and materials may get damaged
by exposure to infrasonic or ultrasonic
waves and even get collapsed harm so
women's physiological function noise can
cause abnormal menstruation abortion
premature delivery and even abnormal
embryo noises are more harmful for
children's body mind and health than
that of a does because their organs are
still weak control measures the noise
pollution can be controlled at the
source of generation itself by employing
methods like reducing the noise levels
from domestic sectors the domestic noise
coming from radio television sets mixes
washing machines cooking operations can
be minimized by the selective and
judicious operation maintenance of
automobiles regular servicing and tuning
of vehicles fixing of silencers to
automobiles will reduce the noise levels
low voice speaking speaking at low
voices enough for communication reduces
the excess noise levels prohibition on
usage of
speakers by not permitting the usage of
loudspeakers in the habitat zones
except for important meetings of
functions