When it comes to industrial lead processing, The Doe Run Company
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/lead-air-adjusting-new-standard
[2] http://admin.indiaenvironmentportal.org.in/category/author/charles-w-schmidt
[3] http://admin.indiaenvironmentportal.org.in/category/journal/environmental-health-perspectives
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lead-industry
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lead
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/child-health
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us