Fluoride level in bottled water sold in the UAE. Imported brand # 1-14, and local brand # 15-23. Set standard limits: (A) U.S. EPA, 4 mg/L; (B) U.S. EPA, 2 mg/L; (C) EC and WHO, 1.5 mg/L; (D and E) GCC, 0.6–1.7 mg/L. Health and human service optimal level: (F) 0.7 mg/L. Set standard limits for U.S. FDA/CFR: (G) no fluoride added and (H) fluoride added, at retail store air temperature of 53.7oF and below (packaged in the U.S.); (I) no fluoride added and (J) fluoride added, at retail store air temperature of 79.3–90.5 °F (packaged in the U.S.); (K) no fluoride added and (L) fluoride added (imported).