Fluoridation map of drinking waterStrubelt, OBargfeld, D
Tikal had no water supply other than the rainwater they collected in ten reservoirs. The city now gets an average of 1,945 millimeters of rainfall each year. However, rain arrived irregularly, with long periods of drought. There are signs of early agriculture at Tikal's site dating back to ...
Fluoride in Drinking Water: A Review of Fluoridation and Regulation Issues; Congressional Research Service: Washington, DC, USA, 2013; pp. 1–21. [Google Scholar] Ozsvath, D.L. Fluoride concentrations in a crystalline bedrock aquifer Marathon County, Wisconsin. Environ. Geol. 2006, 50, 132–...
Debating water fluoridation before Dr. Strangelove. Am. J. Public Health 2015, 105, 1559–1569. [CrossRef] [PubMed] 24. Dahi, E. Africa's U-Turn in defluoridation policy: From the Nalgonda technique to bone char. Res. Rep. Fluoride 2016, 49 Pt 1, 401–416. 25. Marwa, J.; ...