The â€˜ignored pollutantâ€™ can cause depression, stress, diabetes and heart attacks. What are cities doing to curb excess noise?
The constant roar of traffic, incessant construction noise, piercing sirens, honking horns, shrieking loudspeakers â€“ noise in cities is clearly a nuisance.
But itâ€™s also a danger. The World Health Organisation (WHO) has described noise pollution as an underestimated threat that can cause hearing loss, cardiovascular problems, cognitive impairment, stress and depression. Some experts go further: they believe exposure to environmental noise could be slowly killing us.
Though there is no set threshold to establish risk, anything above 60 decibels can increase risk for heart disease
If we could make planes, trains and â€‹â€‹cars quieter â€‹we would solve a lot of our problems.
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