The hot springs were named after the radioactive element when an analysis of the water showed that it contained small traces of radon which is a decay product of radium.[3] The radiation dosage from bathing in the pools is inconsequential: approximately 0.13 millirems (1.3 μSv) from the water for a half-hour bathing, around ten times average background levels. The air concentration of radon is about 850 becquerels per cubic metre (23 pCi/L) which is higher than the level (200 Bq/m3 or 5.4 pCi/L) at which mitigation within two years is encouraged at residences;[4] but is also inconsequential (about 0.7 mrem or 7.0 μSv for a half-hour bathing) from a dose impact perspective.[5]
Geography
Looking north on BC Hwy 93/95 at Radium Hot Springs
In the 2021 Census of Population conducted by Statistics Canada, Radium Hot Springs had a population of 1,339 living in 634 of its 1,366 total private dwellings, a change of 72.6% from its 2016 population of 776. With a land area of 6.34 km2 (2.45 sq mi), it had a population density of 211.2/km2 (547.0/sq mi) in 2021.[6]
Economy
Baymag mines magnesium out of Mount Brussilof, 35 kilometres from town.[7] The deposit was discovered in 1966. Proven reserves in excess of 50 million tonnes of magnesite ore were found. The ore is trucked to Exshaw AB for calcination, other processes and onwards sale.[8]
Amenities
The hot-water pool at Radium Hot Springs.
Several golf courses are located nearby, along with 675 hotel and motel rooms.
Kootenay National Park
The southwestern entrance to Kootenay National Park is located immediately east of the village limits, with Highway 93 leading into the park lined with motels.
Hot springs
The hot springs complex itself is located just within the national park and contains two large pools, one with hot water for soaking (usually around the temperature of 39 °C or 102 °F), the other a 25 m swimming pool that is usually around 29 °C (84 °F). There is also a hot-tub-sized pool that has been dubbed the "Plunge Pool", because the water can be hot – right from the source at 44 °C (111 °F) – or cold, right from a creek running beneath the pools.