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Seawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium ( Na +
In medicine, salt poisoning is most frequently encountered in children or infants [2] [3] who may be made to consume excessive amounts of table salt. At least one instance of murder of a hospitalized child by salt poisoning has been reported. [4] Adults can consume too much salt by consuming seawater, pickled goods, brine water or soy sauce. [5]
Most water in Earth's atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.
The average salinity of Earth's oceans is about 35 grams (1.2 oz) of salt per kilogram of seawater (3.5% salt). [21] Most of the salt in the ocean comes from the weathering and erosion of rocks on land. [22] Some salts are released from volcanic activity or extracted from cool igneous rocks. [23]
Increases in salinity have been observed in lakes and rivers in the United States, due to common road salt and other salt de-icers in runoff. [ 20 ] The degree of salinity in oceans is a driver of the world's ocean circulation , where density changes due to both salinity changes and temperature changes at the surface of the ocean produce ...
Health professionals have long encouraged people to reduce their sodium intake to no more than 2,300 milligrams per day, warning that too much sodium (a mineral in table salt) can lead to high ...
The salt works on the island of Great Inagua owned by Morton Salt. The salt harvesting by the Tsonga women of Baleni on the Small Letaba River, Limpopo, South Africa. [11] Until World War II, salt was extracted from sea water in a unique way in Egypt near Alexandria. [12] Posts were set out on the salt pans and covered with several feet of sea ...
This is a list of countries by salt production. The six leading salt producers in the world, China, the United States, India, Germany, Canada, and Australia, account for more than half of the worldwide production. The first table includes data by the British Geological Survey (BGS) for countries with available statistics.