Noise is an unwanted sound. That sound like something unpleasant that others might be. It is based on various factors. Natural environment, air , volcanoes , marine animals , birds accept is full of rich sounds. man-machine-made sounds , cars , trains , airplanes , fireworks , explosives etc.. Which is much disputed. Both types of noise pollution , sleep , listen , communicate even affect physical and mental health are.
It has been proved that the noise pollution , air pollution is an important part. the first part of the material was considered pollution. Noise pollution the industrial environment is an essential part of growing with the rise of industrial urbanization is. Even in non-industrial sectors, printing dyeing machine , car repairs , grinding, etc. work around is to create noise in the environment. The noise not only pets , but also sounds provoked blood flow to the heart is intense pace of operations. Strol constant noise of coal in the blood volume increases, which constricts the blood vessels of the heart diseases are rising prospects. Health experts believe that increases the noise neurological disease , etc., gives rise to Nrwsbrek down.
Noise , is the transmission through the air. Determined by measuring the intensity of sound units called decibels. Experts say that the 100 -plus decibel sound affects our hearing. Urotik man makes. World Health Organization 45 decibels of sound , is ideal for cities. Large cities, a measure of the sound 90 decibels is over. Mumbai world's third - largest city is quieter. Delhi is following right behind him.
0 comments:
Post a Comment