Undoubtedly, generators have become indispensable in the present times. Generators are applicable almost everywhere from homes, offices to industries.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/generator-noise-level-regulations-permissible-limits-and-different-types-gensets
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/noise-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment