Several studies have ealuated how perchlorate might affect newborns.

  • Li et al. looked at the thyroid function of newborns in Las Vegas, Nevada, where low levels of perchlorate exist in the water, and in Reno, Nevada, where there is no perchlorate in the water. In comparing the results of standard tests of newborns in the two areas, scientists found no difference between the newborns in terms of thyroid function. 
  • Lamm and Doemland compared counties in California and Nevada, some with trace amounts of perchlorate in the water and some without, and had similar results.
  • Tellez et al. found no impacts from perchlorate on pregnant women during the critical period between the late first and early second trimesters, and no effect on fetal development or thyroid levels in newborns. The study examined pregnant women and babies from three cities in Chile, where perchlorate levels range from non-detectable to 110 ppb and daily intake of dietary iodide is equivalent with the U.S.
  • Kelsh et al. evaluated whether newborns had higher rates of primary congenital hypothyroidism (PCH) or elevated concentrations of thyroid-stimulating hormones in a community where perchlorate was detected in groundwater wells. The findings, according to the Journal of Occupational and Environmental Medicine, suggest that residence in a community with potential perchlorate exposure has not impacted PCH rates or newborn thyroid function.
  • Other studies show there are no measurable effects on human beings at doses up to 245 ppb.

Read more.