Characteristics of deep seawater

更新日 2009年04月01日

Constant low temperature

Deep Seawater is significantly colder(by about 9.5 degree-C) than surface seawater, and the temperature changes only slightly throughout the year.

Rich in Nutrients

Compared to surface seawater,deep seawater contains more of the inorganic nutrients necessary for plant growth,including nitrogen,phosphorus and silicic acid.

Cleanness

Deep seawater is uncontaminated by coliform bacilli and other groundwater-bacteria. Further along with having a very low concentration of marine bacteria,deep seawater is protected from chemical pollutant found in surface air and groundwater.

Maturity

Deep seawater matures over long periods,under more than 300m of water pressure.

Mineral properties

Deep seawater contains a favorable balance of essential trace elements and minerals. The breakdown of deep seawater's unique elemental concentration is becoming clearer.

高知県商工労働部海洋深層水研究所

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高知県室戸市室戸岬町7156番地

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