TSV
Hot Spring Water Quality Types - TSV
Hot spring water quality is classified into 10 types based on the Hot Spring Law and the Ministry of the Environment's Guidelines for Mineral Spring Analysis, according to chemical composition and pH values. Each type - Simple Hot Spring, Chloride Spring, Bicarbonate Spring, Sulfate Spring, Carbon Dioxide Spring, Iron-bearing Spring, Sulfur Spring, Acidic Spring, Radioactive Spring, and Iodine-bearing Spring - has unique components and benefits, used for beauty, health maintenance, and relief of specific conditions.
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code slug name description benefits characteristics
01 simple-hot-spring Simple Hot Spring Hot springs with less than 1,000mg of dissolved substances per kg and temperature of 25°C or higher. ["Autonomic nervous system disorders","Insomnia","Depression","Fatigue recovery"] Colorless, transparent, odorless, low irritation
02 chloride-spring Chloride Spring Hot springs where chloride ions are the main component of anions. ["Peripheral circulation disorders","Cold sensitivity","Dry skin","Cuts","Fatigue recovery"] Salty taste, doesn't cool down easily, high heat retention
03 bicarbonate-spring Bicarbonate Spring Hot springs where bicarbonate ions are the main component of anions. ["Cuts","Peripheral circulation disorders","Cold sensitivity","Dry skin","Skin beautification"] Alkaline, skin-smoothing, beauty spring
04 sulfate-spring Sulfate Spring Hot springs where sulfate ions are the main component of anions. ["Cuts","Peripheral circulation disorders","Cold sensitivity","Dry skin","Hypertension"] Bitter and astringent taste, moisturizing effect, wound healing
05 carbon-dioxide-spring Carbon Dioxide Spring Hot springs containing 1,000mg or more of free carbon dioxide per kg. ["Peripheral circulation disorders","Cold sensitivity","Hypertension","Cuts","Constipation"] Bubbles adhere to skin, vasodilation, promotes circulation
06 iron-bearing-spring Iron-bearing Spring Hot springs containing high amounts of iron ions. ["Iron-deficiency anemia","Cold sensitivity","Menstrual disorders","Menopausal disorders"] Turns reddish-brown when oxidized, suitable for drinking
07 sulfur-spring Sulfur Spring Hot springs containing 2mg or more of total sulfur per kg. ["Atopic dermatitis","Eczema","Acne","Arteriosclerosis","Hypertension","Rheumatism","Neuralgia"] Distinctive sulfur smell, sterilizing effect, yunohana deposits
08 acidic-spring Acidic Spring Hot springs containing 1mg or more of hydrogen ions per kg. ["Atopic dermatitis","Psoriasis vulgaris","Diabetes","Pyoderma","Athlete's foot"] Strong sterilizing power, peeling effect, strong stimulation
09 radioactive-spring Radioactive Spring Hot springs containing 30×10⁻¹⁰ curies or more of radon per kg. ["Gout","Rheumatoid arthritis","Ankylosing spondylitis","Neuralgia","Immunity boost"] Trace radioactivity, activates cell metabolism, inhalation is effective
10 iodine-bearing-spring Iodine-bearing Spring Hot springs containing high amounts of iodine. ["Arteriosclerosis prevention","Cholesterol reduction","Sterilizing effect"] Brownish color, high sterilizing effect, suitable for drinking