Noise and effects


What is noise? Why the noise should be reduced?


A. What is noise?

Noise is the sound which is undesired by the recipient. Especially in our big cities noise measures are over the limit which is determined by the World Health Organization

B. Noise pollution

The causes of noise pollutions are industrialization, poor urban planning, social events, transportation, construction activities and household noises.

Industrialization: Most of the industries use big machines which are capable of producing large amount of noise. Apart from that, various equipment like compressors, generators, exhaust fans, grinding mills also participate in producing big noise. Therefore, you must have seen workers in these factories and industries wearing ear plugs to minimize the effect of noise.

Poor Urban Planning: In most of the developing countries, poor urban planning also play a vital role. Congested houses, large families sharing small space, fight over parking, frequent fights over basic amenities leads to noise pollution which may disrupt the environment of society.

Social Events: Noise is at its peak in most of the social events. Whether it is marriage, parties, pub, disc or place of worship, people normally flout rules set by the local administration and create nuisance in the area. People play songs on full volume and dance till midnight which makes the condition of people living nearby pretty worse. In markets, you can see people selling clothes via making loud noise to attract the attention of people.

Transportation: Large number of vehicles on roads, airplanes flying over houses, railways and underground trains produce heavy noise and people get it difficult to get accustomed to that. The high noise leads to a situation wherein a normal person lose the ability to hear properly.

Construction Activities: Under construction activities like mining, construction of bridges, dams, buildings, stations, roads, flyovers take place in almost every part of the world. These construction activities take place every day as we need more buildings, bridges to accommodate more people and to reduce traffic congestion. The down point is that these construction equipments are too noisy.

Household Noises: We people are surrounded by gadgets and use them extensively in our daily life. Gadgets like TV, mobile, mixer grinder, pressure cooker, vacuum cleaners, washing machine and dryer, cooler, air conditioners are minor contributors to the amount of noise that is produced but it affects the quality of life of your neighborhood in a bad way.

C. The impact of noise on human can be allocated as following:

1. Physical Effects: temporary or permanent hearing disorders.
2. Physiological Effects: increased blood pressure, circulatory disorders, sudden acceleration, deceleration in heart rate during respiration, reflex.
3. Psychological effects: behavior disorders, excessive irritability and stress.
4. Studies have shown that there are direct links between noise and health. Problems related to noise include stress related illnesses, high blood pressure, speech interference, hearing loss, sleep disruption, and lost productivity. The duration of noise exposure and noise intensity affects the damage level on the body. Less performance and lack of concentration, slowing of movements

D. Datas

According to the datas from the Ministry of Labor and National Social Security; 10% of occupational diseases are caused by the noise-induced hearing loss. Most of the occupational diseases can be treated however it is not possible to heal the hearing loss.