a protective shield when high up in the atmosphere, ozone near the earth's surface can be a fatal pollutant. Three independent research reviews
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/deadly-ozone
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ozone-layer
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-science
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us