Contents Notes |
The United States Environmental Protection Agency (EPA or Agency) requested that the Human Studies Review Board (HSRB) provide scientific and ethics reviews of three items: a recent study of airway inflammation in asthmatics repeatedly exposed to nitrogen dioxide (Ezratty et al., 204), a pre-Rule publication by Spak et al. (1989) of gastic mucosal effects after ingestion of fluoride, and a pre-Rule publication concerning the effects of fluoride and calcium on spinal bone mineral content (Hansson and Roos, 1987). The Board's key responses to the charge questions are summarized in this letter and are detailed in the enclosed final meeting report. |