A Stealthy Threat

Concerned about our environment? Worried about different kinds of pollutions? This article covers one that no one truly considers to be an issue. This stealthy threat is one that needs to be addressed just as much as the many other threats our world faces. This article will reveal this “stealthy threat”. its implications on our environment, and possible solutions to address these issues as we hope to work towards protecting our world.

BY KARANVEER SINGH

What comes to your mind when you hear the word “Pollution”? I guess it includes plastic waste, toxins in the air, piles of garbage, acid rain. All of these are serious pollution problems that challenge humans on an existential level. But you might likely be overlooking a certain kind of pollution: noise Pollution. 

Noise Pollution, the propagation of excessive sound, has severe effects on humans, wildlife, and the whole ecosystem. But, being so elusive, noise pollution is hardly a topic of discussion. Noise is a stealthy threat.

After a certain point on a scale of sound intensity, noise becomes deadly. Besides the fact that loud noises are just annoying, prolonged exposure to them can lead to hearing loss, elevated blood pressure, interrupted sleep, mental anxiety, depression, dementia, etc. Research shows that children living in an area with more noise suffer impairments in attention, memory, reading, and speaking. The inability to concentrate in a noisy environment can affect a child’s learning abilities.

Noise pollution also has devastating effects on wildlife. Animals, such as bats, owls, whales, and dolphins depend on their acoustic surroundings to survive. Yet this is not the complete list of animals to be affected by the inclusion of excessive sounds in the ecosystem. Traffic noise elevates the heart rates of butterflies and caterpillars. The distant din of compressor stations makes it difficult for owls to locate their prey. The echo of snowmobiles causes stress hormone levels to spike in wolves and elk. And in noisy habitats, birds and frogs have adapted their calls to be heard over us. 

Underwater animals are affected the worst. The oscillating nature of sound becomes more prominent underwater. Ships, sonars, seismic tests have made the underwater environment a wavy mess. Whales and dolphins use sound to communicate, navigate, detect prey, and avoid predators, but external sound waves have exceeded their ability to echolocate. Sonar and seismic tests produce loud blasts of sound into the ocean that damage the ears of marine animals. 

There are many ways to get a handle on this problem. A study shows that using material of dampening characteristics in urban areas can help to get this problem under control. Another study suggests the use of plantations for noise reduction. It is a concept that has gained much attention around the world. Dense shrub bushes and tree barriers can help to reduce noise in urban areas. Underwater noise can be reduced by modifying propellers, performing regular maintenance, and implementing speed restrictions on shipping vessels.

References

  • Creel, S., Fox, J., Hardy, A., Sands, J., Garrott, B., & Peterson, R. (2002, June). Snowmobile Activity and Glucocorticoid Stress Responses in Wolves and Elk. http://www.montana.edu/wwwbi/staff/creel/snomoGC.pdf. 
  • Erwin, N., Nemeth, E., Pieretti, N., Zollinger, S. A., Geberzahn, N., Partecke, J., Miranda, A. C., & Brumm, H. (2013, March 7). Bird song and anthropogenic noise: Vocal constraints may explain why birds sing higher-frequency songs in cities. Proceedings of the Royal Society B: Biological Sciences. https://royalsocietypublishing.org/doi/full/10.1098/rspb.2012.2798. 
  • K., D. A., Davis, A. K., Schroeder, H., Yeager, I., & Pearce, J. (2018, May 9). Effects of SIMULATED highway noise on heart rates of Larval monarch BUTTERFLIES, danaus plexippus: Implications for roadside HABITAT SUITABILITY. Biology Letters. https://royalsocietypublishing.org/doi/10.1098/rsbl.2018.0018. 
  • Mason, J. T., McClure, C. J. W., & Barber, J. R. (2016, May 8). Anthropogenic noise impairs owl hunting behavior. Biological Conservation. https://www.sciencedirect.com/science/article/abs/pii/S0006320716301343. 
  • National Geographic Society. (2019, July 15). Noise pollution. National Geographic Society. https://www.nationalgeographic.org/encyclopedia/noise-pollution/. 
  • Noise pollution. Noise Pollution – an overview | ScienceDirect Topics. (n.d.). https://www.sciencedirect.com/topics/engineering/noise-pollution. 
  • Rinkesh. (2020, June 29). Causes and effects of noise pollution on humans and animals. Conserve Energy Future. https://www.conserve-energy-future.com/causes-and-effects-of-noise-pollution.php. 

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