Yunokawa Onsen Wakamatsu Private Spring
Analysis UnverifiedSaid to have been bored in 1885 on the Yunokawa shore facing the Tsugaru Strait, this old spring still gushes up inside a small pavilion, where a sulfur scent hangs that the baths themselves barely hint at. A chloride water rich in calcium as well as sodium, it leaves white mineral crusts on the tub edges and a slightly salty, slippery feel on the skin.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A trace component with gentle antibacterial and anti-inflammatory action.
Transdermal absorption gently supports skin hydration and muscle relaxation.
Scores are calculated from mineral analysis data based on the Mineral Spring Analysis Guidelines (Ministry of Environment, Japan). They are unrelated to facility atmosphere or service quality.
▸Note
The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.
The source is 58.3°C and baths can run near 43°C, so pour water over yourself first and take short, repeated soaks. Rinse lightly afterward so the salty film keeps you warm.
With 3,496 mg/kg of chloride, the salt is thought to coat the skin and slow heat loss, giving a restorative warmth that lasts after bathing and suits deep relaxation in the sea breeze.
The source is hot and baths can run hot, so avoid long soaks. The salty water may sting cuts or sensitive skin.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Yunokawa Onsen Wakamatsu Private Spring
- Spring type
- Sodium-Calcium Chloride Hot Spring
- Source temperature
- 58.3℃
- pH
- 7.2
- Flow rate
- 188 L/min
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2013-02-08
- Analyst organization
- 株式会社環境科学研究所
- Registration No.
- 北海道第5号
Cations
- Sodium ion Na⁺
- 1831 mg/kg
- Potassium ion K⁺
- 123 mg/kg
- Ammonium ion NH₄⁺
- 0.80 mg/kg
- Magnesium ion Mg²⁺
- 160 mg/kg
- Calcium ion Ca²⁺
- 511 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.20 mg/kg
- Iron(II) ion Fe²⁺
- 0.30 mg/kg
- Zinc ion Zn²⁺
- 0.00 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Copper ion Cu²⁺
- 0.01 mg/kg
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 2.6 mg/kg
Anions
- Fluoride ion F⁻
- 2.8 mg/kg
- Chloride ion Cl⁻
- 3496 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.10 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.60 mg/kg
- Sulfate ion SO₄²⁻
- 720 mg/kg
- Bicarbonate ion HCO₃⁻
- 851 mg/kg
- Carbonate ion CO₃²⁻
- 1.0 mg/kg
- Total anions
- 5.1 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 0.10 mg/kg
- Metasilicic acid H₂SiO₃
- 60.9 mg/kg
- Metaboric acid HBO₂
- 16.0 mg/kg
- Total undissociated
- 0.08 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 57.6 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.06 mg/kg
Totals
- Total dissolved substances
- 7.8 mg/kg
- Component total
- 7.8 mg/kg
- Evaporation residue
- 7.6 mg/kg
Usage
- Usage status
- Unknown
Indications & Contraindications
- Bathing indications
- Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, Chronic pain or stiffness in muscles and joints, Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction
- Contraindications
- Acute illness (especially with fever), Active tuberculosis, Malignant tumors, Severe heart disease, Respiratory failure, Renal failure, Bleeding disorders, Severe anemia, Any actively progressing illness, Pregnancy (especially early and late stages)
Drinking
- Drinkability
- Not drinkable
