Shikaribetsu Kohan Onsen (Shikaribetsu Kohan Onsen Hotel No. 1 Well)
Analysis UnverifiedLake Shikaribetsu, at about 800 m, is Hokkaido's highest natural lake. Hot-spring rights on its shore changed hands in the 1920s and an inn opened in 1931; natural outflows were used until around 1965, after which water was drawn from drilled wells. Clear at the source, it turns a cloudy yellow-green in the tub and stains the floor brown with mineral deposits. A faint sulfur scent, an iron-tinged carbonate taste and a smooth, slippery feel mark the water, and in winter an ice-top open-air bath appears on the frozen lake.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
Undissociated boric acid with antibacterial action that keeps the skin surface clean.
A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.
Absorbed through the skin to gently promote peripheral circulation.
The aroma typical of sulfur springs, with circulatory and antibacterial effects.
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 53.9°C source makes the water near the inlet hot; alternate half-body soaks while taking in the lake view, keep sessions short, drink water afterward, and watch your footing on the mineral-coated floor.
With 594.2 mg/kg chloride leaving a light salt film on the skin, the water offers restorative warmth that lasts through cool highland nights, while 458.7 mg/kg bicarbonate and 193.6 mg/kg metasilicic acid may support silky skin after bathing.
The source is hot, so take care near the inlet to avoid scalding or overheating; the mineral-coated floor is slippery, and long soaks or bathing after alcohol are best avoided.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Shikaribetsu Kohan Onsen (Shikaribetsu Kohan Onsen Hotel No. 1 Well)
- Spring type
- Sodium Chloride and Bicarbonate Spring
- Old spring type name
- 含重曹－食塩泉
- Source temperature
- 53.9℃
- pH
- 6.3
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2016-10-05
- Analyst organization
- 株式会社ホクカン 環境化学分析センター
- Registration No.
- 北海道第3号
Cations
- Sodium ion Na⁺
- 455 mg/kg
- Potassium ion K⁺
- 32.4 mg/kg
- Ammonium ion NH₄⁺
- 10.3 mg/kg
- Magnesium ion Mg²⁺
- 15.2 mg/kg
- Calcium ion Ca²⁺
- 32.8 mg/kg
- Aluminum ion Al³⁺
- 0.03 mg/kg
- Manganese ion Mn²⁺
- 0.60 mg/kg
- Iron(II) ion Fe²⁺
- 3.7 mg/kg
- Zinc ion Zn²⁺
- 0.01 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Copper ion Cu²⁺
- not detected
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 0.55 mg/kg
Anions
- Fluoride ion F⁻
- not detected
- Chloride ion Cl⁻
- 594 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.10 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 1.9 mg/kg
- Bicarbonate ion HCO₃⁻
- 459 mg/kg
- Carbonate ion CO₃²⁻
- 0.10 mg/kg
- Dihydrogen phosphate H₂PO₄⁻
- 0.70 mg/kg
- Total anions
- 1.1 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 194 mg/kg
- Metaboric acid HBO₂
- 85.4 mg/kg
- Total undissociated
- 0.28 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 518 mg/kg
- Free hydrogen sulfide H₂S
- 0.80 mg/kg
- Total dissolved gas
- 0.52 mg/kg
Totals
- Total dissolved substances
- 1.9 mg/kg
- Component total
- 2.4 mg/kg
- Evaporation residue
- 1.6 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
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
