Unnecessary brilliance: The dangers of underestimating light pollution

Updated On: 09 November, 2023 07:20 AM IST | Mumbai | Dipti Singh

Activists call for light pollution guidelines, say bright hoardings affecting wildlife, environment and health of citizens

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Billboards flood the Western Express Highway with light on the night of October 7. Pic/Nimesh Dave

Mumbai is often hailed as the city that never sleeps, and it shares a common downside with many other metropolises–the unavoidable issue of light pollution. Its sources are obtrusive signboards, overly bright offices as well as residential and commercial establishments, including medical stores. While the Brihanmumbai Municipal Corporation (BMC) and traffic police follow a Bombay High Court order that restricts illuminated or digital hoardings/billboards, there is no policy to restrict the bright lights/glare of street beautification projects and displays of commercial establishments. However, the civic body promises action if “genuine” complaints are made by residents.

Not so harmless

“Light pollution often doesn’t raise the same level of concern as air or water pollution, which is why there are generally no guidelines or safety standards in place in many parts of the world. In some cases, light pollution is mistakenly perceived as harmless, and in some instances, desirable. It`s essential to acknowledge that light pollution can have adverse consequences, including health issues such as retinal damage and disruption of sleep patterns. Additionally, excessive light can lead to various psychological effects. Its impact on nature is profound, as it can disrupt animal navigation at night and induce changes in their natural behaviour patterns," said a retired BMC official.

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