Salinity of Water

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Salinity is the saltiness or dissolved salt content of a body of water.

• 35 g dissolved salt / kg sea water = 35 ppt = 35 o/oo = 3.5% = 35,000 ppm

Salinity in Water

• drinking water : 100 ppm
• restriction on drinking water : 500 ppm
• fresh water - limit drinking water : 1000 ppm
• limit agriculture irrigation : 2000 ppm
• brackish water, mildly : 1000 - 5,000 ppm
• brackish water, moderately : 5000 - 15,000 ppm
• brackish water, heavily : 15,000 - 35,000 ppm
• sea water : 30,000 - 50,000 ppm (approx. 35,000)
  
• brine > 50.000 ppm

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