Of the thirty samples collected as part of the study, the samples of three students contained more than 10 microgram per decilitre (mpd). The permissible limit is up to 10mpd.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/lead-content-high-city-govt-school-students
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-herald-bangalore
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lead
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/child-health
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangalore-t