ironite, a widely used fertiliser in the us, releases enough of lead and arsenic in standard leaching tests to be classified as a hazardous waste. Moreover, its heavy metals are
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/killer-let-loose-0
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lead
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arsenic
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fertiliser-industry
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us