Tennen Onsen Tanuki no Sato
Analysis UnverifiedTennen Onsen Tanuki no Sato was struck in 1983 when a well was drilled 1,300 meters beneath central Obihiro, gushing about 500 liters per minute at the time. Still rising without pumps, its oolong-colored moor water, rich in the plant-derived humus typical of the Tokachi Plain, offers a gently slippery touch for city bathers.
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.
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.
Fed straight from the 42.3°C source, the baths stay pleasantly warm. At pH 8.9 the alkaline water smooths the skin, so let it glide over you rather than scrubbing, and moisturize after bathing.
With pH 8.9 alkalinity, 173.5 mg/kg of bicarbonate and 25.8 mg/kg of carbonate, the water may soften the skin's surface toward a silky feel. As a mild simple spring at 42.3°C, it invites unhurried soaking and deep relaxation, while 46.8 mg/kg of metasilicic acid adds gentleness.
Alkaline water can strip natural oils, so moisturize after long soaks. Avoid bathing when unwell or after drinking alcohol.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Tennen Onsen Tanuki no Sato
- Spring type
- Alkaline Simple Hot Spring
- Source temperature
- 42.3℃
- pH
- 8.9
- Flow type
- 掘削自噴
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2024-07-23
- Analyst organization
- 日本衛生株式会社
Cations
- Sodium ion Na⁺
- 112 mg/kg
- Potassium ion K⁺
- 1.3 mg/kg
- Ammonium ion NH₄⁺
- 0.70 mg/kg
- Magnesium ion Mg²⁺
- 0.00 mg/kg
- Calcium ion Ca²⁺
- 1.5 mg/kg
- Total cations
- 0.12 mg/kg
Anions
- Fluoride ion F⁻
- 0.40 mg/kg
- Chloride ion Cl⁻
- 37.7 mg/kg
- Hydroxide ion OH⁻
- 0.10 mg/kg
- Hydrogen sulfide ion HS⁻
- 1.8 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 1.6 mg/kg
- Bicarbonate ion HCO₃⁻
- 174 mg/kg
- Carbonate ion CO₃²⁻
- 25.8 mg/kg
- Bromide ion Br⁻
- 0.20 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.60 mg/kg
- Total anions
- 0.24 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 46.8 mg/kg
- Metaboric acid HBO₂
- 3.0 mg/kg
- Total undissociated
- 0.05 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 0.40 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.00 mg/kg
Totals
- Total dissolved substances
- 0.41 mg/kg
- Component total
- 0.41 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Autonomic instability, Insomnia, Depression
- General indications
- High blood pressure (mild), Rheumatoid arthritis, 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
