1. WHO (2004) Guidelines for drinking-water quality. Recommendations, Geneva
2. UNSCEAR (2008) Exposures of the public and workers from various sources of radiation, UNSCEAR 2000 report to the General Assembly with scientific annexes New York: United Nations
3. Vesterbacka P (2007) Natural Uranium in drinking water in Finland. Boreal Environ Res 12:11–16
4. Shuktomova II, Rachkova NG (2011) Determination of 226Ra and 228Ra in slightly mineralised natural waters. J Environ Radioact 102(2):84–87
5. Veguería SFJ, Godoy JM, Miekeley N (2002) Environmental impact in sediments and seawater due to discharges of Ba, 226 Ra, 228 Ra, V, Ni and Pb by produced water from the Bacia de Campos oil field offshore platforms. Environ Forensics 3(2):115–123