Minimal level of iodine at consumer level should be ________ppm -: (A) 5, (B) 10, (C) 15, (D) 30
Answer is C. Level of iodine should be not less than 30ppm at the production point and is not less than 15ppm at consumer level.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-595