Citing a “plethora of new data” published since issuing its toxicological profile for perfluoroalkyls in 2009, the Agency for Toxic Substances and Disease Registry (ATSDR) has reissued the profile seeking additional information about the alleged health effects of exposure to the synthetic chemicals. PFOA and PFOS are the two perfluoroalkyls produced in the largest amounts in the United States and are used in coatings for paper and cardboard packaging to repel oil, grease and water. Comments are due by December 1, 2015. See Federal Register, September 2, 2015.