A floating dredge lowered a clamshell bucket to the bottom of the Hudson River on Friday and pulled up a load of muck contaminated with PCBs
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/reclaiming-river
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/new-york-times-new-york
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hudson
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sedimentation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-disposal
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/landfill
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hazardous-waste
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us