Shionoha Onsen Yamabatoyu Spring
Analysis UnverifiedThis spring in a deep valley near the source of the Yoshino River is said to have flowed since ancient times. After the old spring was submerged by a dam reservoir, it was found again by boring into the valley, and it still rises by its own pressure. It combines 2,127 mg/kg of bicarbonate with 920 mg/kg of chloride, and 142 mg/kg of free carbon dioxide gives it a fizzy, slightly sweet and faintly metallic taste. Thick mineral deposits crust the tub edges. At just over 39°C, it suits those who like to lose track of time in a lukewarm bath overlooking the gorge.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A "beauty spring" that gently emulsifies dead skin cells, leaving skin smooth after bathing.
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.
At 39.6°C this lukewarm water suits long, unhurried soaks, but still drink water regularly during extended bathing. The neutral bicarbonate water can leave skin feeling clean and dry, so moisturize afterward.
With 920 mg/kg of chloride, a thin salt film is said to provide restorative warmth long after bathing, while 2,127 mg/kg of bicarbonate may gently lift old skin cells, traditionally associated with silky skin.
Even lukewarm water can cause bathing fatigue if you soak too long, so listen to your body. Those in acute illness or with serious heart or lung conditions should refrain or consult a doctor; avoid bathing after drinking or eating.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Shionoha Onsen Yamabatoyu Spring
- Spring type
- Sodium-Calcium Chloride and Bicarbonate Spring
- Old spring type name
- 含土類－食塩泉
- Source temperature
- 39.6℃
- pH
- 6.6
- Flow rate
- 380 L/min
- Flow type
- 掘削自噴
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2009-03-11
- Analyst organization
- 有限会社奈良環境調和研究所
- Registration No.
- 奈良県20温第1号
Cations
- Lithium ion Li⁺
- 5.5 mg/kg
- Sodium ion Na⁺
- 570 mg/kg
- Potassium ion K⁺
- 89.0 mg/kg
- Ammonium ion NH₄⁺
- not detected
- Magnesium ion Mg²⁺
- 38.0 mg/kg
- Calcium ion Ca²⁺
- 190 mg/kg
- Aluminum ion Al³⁺
- 0.01 mg/kg
- Manganese ion Mn²⁺
- 0.05 mg/kg
- Iron(II) ion Fe²⁺
- 1.4 mg/kg
- Zinc ion Zn²⁺
- not detected
- Lead ion Pb²⁺
- not detected
- Strontium ion Sr²⁺
- not detected
- Barium ion Ba²⁺
- 0.82 mg/kg
- Copper ion Cu²⁺
- 0.01 mg/kg
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 0.89 mg/kg
Anions
- Fluoride ion F⁻
- 2.1 mg/kg
- Chloride ion Cl⁻
- 920 mg/kg
- Hydrogen sulfide ion HS⁻
- not detected
- Thiosulfate ion S₂O₃²⁻
- not detected
- Sulfate ion SO₄²⁻
- not detected
- Bicarbonate ion HCO₃⁻
- 2127 mg/kg
- Carbonate ion CO₃²⁻
- not detected
- Bromide ion Br⁻
- not detected
- Iodide ion I⁻
- not detected
- Nitrite ion NO₂⁻
- not detected
- Nitrate ion NO₃⁻
- 3.0 mg/kg
- Phosphate ion PO₄³⁻
- not detected
- Total anions
- 3.1 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 142 mg/kg
- Metaboric acid HBO₂
- 7.0 mg/kg
- Total undissociated
- 0.15 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 142 mg/kg
- Free hydrogen sulfide H₂S
- not detected
- Total dissolved gas
- 0.14 mg/kg
Totals
- Total dissolved substances
- 4.1 mg/kg
- Component total
- 4.2 mg/kg
- Evaporation residue
- 3.0 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
