Variations in radon concentration in groundwater of Kumaon Himalaya, India

Bourai AA1, Gusain GS, Rautela BS, Joshi V, Prasad G, Ramola RC
Radiat Prot Dosimetry. 2012 Nov;152(1-3):55-7. doi: 10.1093/rpd/ncs186. Epub 2012 Aug 22.

https://www.ncbi.nlm.nih.gov/pubmed/22914330