No general causation in toxic tort case

“[W]here a plaintiff seeks to rely on epidemiological evidence, Texas law requires that the stifues show a statistically significant doubling of the risk of developing their alleged inuiries. . . . The studies relied on by the Plaintiffs and their experts do not . . . One of these studies did not quantify the risk of developing Plaintiffs’ chromuim-related-acute-irritation injuries at all and the other study did not find a doubling of the risk.” McManaway v. KBR, Inc., No. 15-20641 (March 27, 2017) (applying Merck & Co. v. Garza, 347 S.W.3d 256 (Tex. 2011)).