新湯1, 2, 3, 5, 7号(混合泉)
Shin'yu Springs #1, #2, #3, #5, #7 (blended)Mixed source
黄
Sulfur
Classification
Calcium-Sodium-Magnesium Bicarbonate-Sulfate spring
A blend of five wellheads (Shin'yu Springs #1, #2, #3, #5 and #7) classified as a simple sulfur spring of the hydrogen sulfide subtype. Emerges hot at 60.5 °C, milky-white at the source with the unmistakable rotten-egg note of H₂S and a faint astringent bite on the tongue. Weakly acidic at pH 5.1 and only lightly mineralized (345 mg/kg total dissolved solids), it nonetheless carries a generous 82 mg/kg of free hydrogen sulfide alongside 193 mg/kg of free CO₂ — the kind of dense sulfur water long credited with helping stubborn skin conditions.
pH
5.10
Weakly acidic
Source temperature
60.5°C
Hot
Tonicity
0.35g/kg
Hypotonic
Free CO₂
193mg/kg
Low
Free H₂S
82mg/kg
Very high
Radon
16Bq/kg
Low
- Color
- white, slightly turbid
- Taste
- bitter
- Odor
- hydrogen sulfide
Highlights
- Sulfur-rich
Analyzed Aug 25, 1990·一般財団法人 鹿児島県環境技術協会