During town water treatment processes the following chemicals may be used by the water authorities for purposes shown here. From the Australian Drinking Water Guidelines (ADWG, 2018)

A recent analysis of an Amber Necklace at our sister site, Toxtest, for any emitting Gamma, Beta, Alpha Radiation revealed a level of 0.09 μSv per hour or, if worn 24/7, would equal about 788 μSv per year. To put this into perspective, reports of average doses of radiation per year range from 3000 to 6000 μSv per year. This includes exposure from natural radiation (from soil, cosmic rays, etc.)