宇奈月温泉
Unazuki OnsenOperated by · 黒部観光開発株式会社
Sampled at wellhead
湯
Simple
A simple thermal spring drawn from the Unazuki Onsen wellhead, which emerges at a striking 98.3 °C and is cooled to about 46 °C before reaching the bath. With only 402 mg/kg of dissolved solids it sits on the gentle, lightly mineralized end of the spectrum, and its weakly alkaline pH gives a soft, unprickly feel on the skin. The wellhead temperature alone places it among Japan's hottest natural sources.
Source temperature
98.3°C
Hot
Tonicity
0.40g/kg
Hypotonic
Free CO₂
7.48mg/kg
Low
Highlights
- Top-decile hot
Analyzed Oct 3, 2014·富山県薬事研究所·Cert no. 黒部 第130号