What can we do about increasing noise pollution in the environment?
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Trees and shrubs to cancel the noise pollution
- Noise absorption: Parts like leaves and woods absorb the sound waves and dampen them.
- Sound deflection: The rigidity of the tree trunks reflects the sound waves towards the source. Other parts like leaves that vibrate are useful in deflecting sound into other energy forms.
- Sound refraction: The grounds covered by plants and walls with vines help the sound to bounce all over and create echoes that can disappear easily.
- Sound masking: Trees that are bushy and leave will mask sounds very effectively and reduce the intensity.
Yang F, Bao ZY, Zhu ZJ. An assessment of psychological noise reduction by landscape plants. Int J Environ Res Public Health. 2011;8(4):1032-1048. doi:10.3390/ijerph8041032
Technology advancement = noise reduction
Integrate noise cancellation designs as mandatory while building residential buildings
Electric cars and trucks; bicycles
Build new houses in more suitable locations
Novel ultralight sound-insulating materials!