When it’s protecting us from harmful ultraviolet rays of the sun at higher altitudes, ozone is great.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/alarming-rise-ground-ozone-levels
[2] http://admin.indiaenvironmentportal.org.in/category/author/damini-nath
[3] http://admin.indiaenvironmentportal.org.in/category/author/bindu-shajan-perappadan
[4] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ozone
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oxides-nitrogen-nox
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere-and-ozone-layer