The best scientific and medical research shows that newborns and children are not affected by perchlorate at the low levels found in drinking water. Three studies conducted by Dr. Elizabeth Pearce and colleagues in 2010, 2011 and 2012 added to the scientific database of research confirming this conclusion. These studies examined thousands of pregnant women in Athens (Greece), Cardiff (Wales), Turin (Italy), Cordoba (Argentina) and Los Angeles (USA) and all had the same finding: low-level perchlorate exposure is ubiquitous in the population, but it is not associated with alterations in thyroid function during pregnancy.