Noise: the forgotten pollutant

Photo credit: Quiet City Maps

, The Irish Times, writes about environmental noise, which he terms “the forgotten pollutant.” Why forgotten? Because Purcell believes that people living in urban areas have grown accustomed to ignoring noise.  But that may be coming to an end, Purcell opines, because due to “the constant and rapid development of globalised economies and cities, the world is getting noisier.”

Purcell examines the known negative health effects of noise and looks at the work done by acoustic scientists and engineers, who “generate sophisticated noise maps, which graphically represent urban areas based on how loud or quiet they are.”  He interviews Dr. Eoin King, an assistant professor at the University of Hartford, who states that “noise mapping is the first step in the environmental noise management process.”

Why is noise mapping is important?  Dr. King says that it “enables policymakers to determine the overall extent of noise pollution, so that appropriate decisions can be made.”  But making a noise map is both time-consuming and expensive, or at least it used to be time-consuming and expensive. One exciting development led by Dr. Enda Murphy, associate professor at University College Dublin, and Dr. King, is the use of simple smartphone apps to create the maps inexpensively. Eventually, says King, “smartphone apps that can measure noise accurately…might present the possibility of live noise mapping in the future.”  And with live noise mapping comes “new noise data [with] a range of applications, from predicting health problems, to the market pricing of real estate.”

Click the link to read the full article.  It’s a very interesting read.

 

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