Hotel Marue Onsen Gensen
Analysis UnverifiedThe Hotel Marue Onsen source dates to 1980, when drilling in central Nakashibetsu struck hot water at a depth of 1,530 meters. Once classed as a sulfur sodium-chloride spring, it was reclassified as an alkaline simple spring in the 2019 analysis. Nearly clear with a faint hint of hydrogen sulfide, the water feels slick and leaves the skin notably smooth, soothing travelers who want to unwind after a day exploring the Konsen plain.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.
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.
The 39.5°C source is warmed to around 42°C in the tub. At pH 9.1 the water feels slippery, so pat the skin dry gently afterward rather than rubbing, and moisturize.
With a pH of 9.1 and 181.3 mg/kg of metasilicic acid, this water is traditionally associated with silky skin, and as a gentle simple spring it offers deep relaxation after a long day of travel.
Alkaline water tends to strip skin oils, so those with dry skin should avoid long soaks and moisturize after bathing.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Hotel Marue Onsen Gensen
- Spring type
- Alkaline Simple Hot Spring
- Old spring type name
- 単純温泉
- Source temperature
- 39.5℃
- pH
- 9.1
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2019-11-19
- Analyst organization
- 日本衛生株式会社
- Registration No.
- 北海道第11号
Cations
- Sodium ion Na⁺
- 253 mg/kg
- Potassium ion K⁺
- 3.8 mg/kg
- Ammonium ion NH₄⁺
- 0.60 mg/kg
- Magnesium ion Mg²⁺
- 0.10 mg/kg
- Calcium ion Ca²⁺
- 1.3 mg/kg
- Aluminum ion Al³⁺
- 0.01 mg/kg
- Manganese ion Mn²⁺
- not detected
- Iron(II) ion Fe²⁺
- not detected
- Zinc ion Zn²⁺
- not detected
- Lead ion Pb²⁺
- not detected
- Copper ion Cu²⁺
- not detected
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 0.26 mg/kg
Anions
- Fluoride ion F⁻
- 1.5 mg/kg
- Chloride ion Cl⁻
- 273 mg/kg
- Hydroxide ion OH⁻
- 0.20 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.30 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 64.6 mg/kg
- Bicarbonate ion HCO₃⁻
- 85.5 mg/kg
- Carbonate ion CO₃²⁻
- 27.0 mg/kg
- Bromide ion Br⁻
- 0.80 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.60 mg/kg
- Total anions
- 0.45 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 181 mg/kg
- Metaboric acid HBO₂
- 4.7 mg/kg
- Total undissociated
- 0.19 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 0.10 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.00 mg/kg
Totals
- Total dissolved substances
- 0.90 mg/kg
- Component total
- 0.90 mg/kg
- Evaporation residue
- 0.71 mg/kg
Usage
- Usage status
- Unknown
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
