Noise pollution is any unwanted or disturbing sound that affects the health, quality being of humans & their environment. WHO defines sound above 65dB as noise pollution, harmful >70dB, painful >120dB. Causes of noise pollution: Construction, traffic, fire-crackers, lorries, loud music, animals. Effect of Noise pollution of human health: 1) Physical: - i) Respiratory agitation - ii) High blood pressure due to adrenaline rush - iii) Headache, raging pulse - iv) Tinnitus - v) Hearing loss due to continuous exposure - vi) Heart attack in patient & high risk - vii) Gastric, colitis 2) Psychological: - i) Stress - ii) Fatigue - reduced productivity - iii) Depression - iv) Anxiety - v) Insomnia - vi) Memory loss & concentration - vii) Sleeping disorder - viii) Cognitive impairment in young age groups
3Sleep & Behavioural Disorder: - i) Immobility due to disturbed sleep - ii) Low productivity - iii) Lack of attention - iv) Young kids & ADHD 4) Memory & Concentration: - i) Lack of ability to focus - ii) Low performance - iii) Emotional Troubles Impact of Noise Pollution on the Environment: 1) Impacts on Communication of Animals: - Animals communicate & reach other at frequency which are disturbed due to excessive noise created due to human. A lot of masked communication cattle gets hampered, thus they don't lose the ability to navigate properly. 2) Impact on Health of Organisms: - Loud noises => daily control in nerve serves such as dogs, cats associated & remote delivery, achieve impact on pregnancy. - This stress hormone can affect their physiological functioning in body, leading to various ill effects. Gut districk, raised beat rate, raised blood pressure.
3Unusual animal behaviour: - Aquatic animals use sound frequency to detect prey, predator & navigate. - Noise pollution can hamper their ability to predict themselves from predators & also change their ability to navigate. - Birds are also blind & depend on sound frequency to locate prey, predator & navigate. - Dolphin also use sound to navigate their way in ocean. => Thus it becomes important to understand the effect excess noise on humans & animals, as noise pollution has adverse effect on both. => Various steps are being taken by restricting limits in residential, public areas for noise permit.