http://globalnews.ca/news/3525744/amplif...s-unanimous-support-at-london-city-hall/
Setting a limit of 70 dB-A as a noise limit is not the whole picture. Yes it can be good for the spoken words in songs, but not for the bass boom.
Measuring Low frequency sound such as "Bass" with a dB-A scale is wrong.
Bass can travel in huge length compared to the treble and words of a song.
The city should consider 70 dB-A for the higher frequencies and 62 dB-C for the Lower Frequencies such as Bass.
There are hundreds of studies that talk about the negative effect of the low frequency sounds have on the human health.
Here are a few:
www.mdpi.com/2071-1050/7/10/13920/pdf
http://www.noiseandhealth.org/article.as...ssue=23;spage=29;epage=35;aulast=Findeis
https://www.ncbi.nlm.nih.gov/pubmed/16201210
http://www.leefmilieu.nl/sites/www3.leef..._s/2012_OudM_Low-frequency%20noise_0.pdf
http://www.sciencemag.org/news/2014/09/sounds-you-cant-hear-can-still-hurt-your-ears
http://www.multi-science.co.uk/effects_low-frequency.htm
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