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Noise Pollution Effects on Humans

The impact of noise on human health is a matter of great concern. The reason being the adverse consequences that high noise levels have on human health. Noise pollution can affect us in several ways, some of which are listed below:

HEARING PROBLEMS

Exposure to noise can damage one of the most vital organs of the body, the ear. Hearing impairment due to noise pollution can either be temporary or permanent. When the sound level crosses the 70 dB mark, it becomes noise for the ear. Noise levels above 80 decibels produce damaging effects to the ear. When ear is exposed to extreme loud noise (above 100 decibels) for a considerable period of time, it can cause irreparable damage and lead to permanent hearing loss.

POOR COGNITIVE FUNCTION

With regular exposure to loud noise, the ability to read, learn and understand decreases significantly over time. Problem solving capabilities and the ability to recall may also decline due to frequent bombardment of noise. Noise pollution can also increase the margin of error as well as hamper your productivity at office. Research has proved that children studying in noisy environment tend to show relatively low cognitive function. For instance, the cognitive status of children sent to schools that are in the close proximity of highways is less in comparison to those learning in quieter surroundings.

CARDIOVASCULAR ISSUES

A noisy environment can be a source of heart related problems. Studies have shown that high intensity sound cause a dramatic rise in blood pressure as noise levels constrict the arteries, disrupting the blood flow. The heart rate (the number of heartbeats per minute) also increase. This was evident in one study wherein the heart rate of children staying in noisy surroundings was measured. It was found to be more than the heart rate of children living in less noisy environment. These sudden abnormal changes in the blood increase the likelihood of cardiovascular diseases...