Amami Onsen No. N-4
Analysis UnverifiedSaid to have flowed since the Nanboku-cho period, this Amami spring is remembered in the tale of a "paradise bath" that soothed pilgrims bound for Mount Koya. Light in dissolved minerals, it is a radioactive spring carrying radon and a touch of free carbon dioxide. It suits travelers who trace the old Koya Kaido road and want a quiet soak by a clear stream.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A rare radioactive spring where trace radiation absorbed via inhalation and skin is expected to stimulate cells (the "hormesis effect").
Absorbed through the skin to gently promote peripheral circulation.
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 15.3°C source is heated before use. Radon is said to be taken in through the steam you breathe, so soak slowly in the warm water and breathe deeply.
With radon at 30.2 Mache/kg, this radioactive spring is traditionally associated with relieving pain, and the trace radon is said to gently stir the body in a way that may support immune system stimulation.
The cold source is heated for bathing. People with general contraindications should refrain, and drink water after long soaks to avoid fatigue.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Amami Onsen No. N-4
- Spring type
- Simple Spring
- Source temperature
- 15.3℃
- pH
- 6.88
- Flow rate
- 28.6 L/min
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2009-03-30
- Analyst organization
- 株式会社総合水研究所
- Registration No.
- 大阪府6
Cations
- Lithium ion Li⁺
- 0.20 mg/kg
- Sodium ion Na⁺
- 42.6 mg/kg
- Potassium ion K⁺
- 7.1 mg/kg
- Ammonium ion NH₄⁺
- < 0.1 mg/kg
- Magnesium ion Mg²⁺
- 7.1 mg/kg
- Calcium ion Ca²⁺
- 88.6 mg/kg
- Aluminum ion Al³⁺
- < 0.1 mg/kg
- Manganese ion Mn²⁺
- 0.20 mg/kg
- Iron(II) ion Fe²⁺
- 1.4 mg/kg
- Lead ion Pb²⁺
- < 0.01 mg/kg
- Strontium ion Sr²⁺
- 0.60 mg/kg
- Barium ion Ba²⁺
- < 0.1 mg/kg
- Copper ion Cu²⁺
- < 0.1 mg/kg
- Cadmium ion Cd²⁺
- < 0.01 mg/kg
- Total cations
- 0.15 mg/kg
Anions
- Fluoride ion F⁻
- 1.7 mg/kg
- Chloride ion Cl⁻
- 18.4 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.10 mg/kg
- Sulfate ion SO₄²⁻
- 3.7 mg/kg
- Bicarbonate ion HCO₃⁻
- 372 mg/kg
- Total anions
- 0.40 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 50.3 mg/kg
- Total undissociated
- 0.05 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 148 mg/kg
- Free hydrogen sulfide H₂S
- 0.20 mg/kg
- Total dissolved gas
- 0.15 mg/kg
Trace Components
- Radon Rn
- 30.2 mE/kg
Totals
- Total dissolved substances
- 0.59 mg/kg
- Component total
- 0.74 mg/kg
- Evaporation residue
- 0.40 mg/kg
Usage
- Usage status
- Unknown
Indications & Contraindications
- Bathing indications
- Hyperuricemia (gout), Rheumatoid arthritis, Ankylosing spondylitis
- General indications
- High blood pressure (mild), Autonomic instability, Insomnia, Depression, 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), Undergoing radiation therapy, pregnancy (radioactive springs)
Drinking
- Drinkability
- Not drinkable
