Lead content of vegetables, millet, and apple trees grown on soils amended with colored newsprint.
D004396:Coloring Agents; D002523:Edible Grain / Q000032:analysis*; D005638:Fruit / Q000032:analysis*; D007854:Lead / Q000032:analysis*; D009524:Newspapers as Topic; D008897:Panicum / Q000032:analysis*; D012987:Soil; D014197:Trees; D014675:Vegetables / Q000032:analysis*
D004396:Coloring Agents; D012987:Soil; D007854:Lead