According to the latest data recorded by the Andhra Pradesh Pollution Control Board (APCB), noise levels in mana city are much higher than permissible norms.
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Links:
[1] http://admin.indiaenvironmentportal.org.in/news/noise-levels-hyderabad-exceed-permissible-limits
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-hyderabad
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hyderabad-d
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/noise-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/andhra-pradesh
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
