Environmental water may show a range of salinity from little to lots.
Methods of measuring:
(1) electrical conductivity (EC) in deciSiemens per meter (dS/m)
(2) part per million (ppm)
(3) mg of chloride per liter
|
Classification
|
EC in dS/m
|
ppm
|
|
fresh water
|
0.8
|
500
|
|
slightly brackish
|
1.7
|
1,000
|
|
medium brackish
|
1.7 to 8.0
|
1,000 to 5,000
|
|
brackish
|
8.0 to 25
|
5,000 to 15,000
|
|
strongly brackish
|
25 to 58
|
15,000 to 35,000
|
|
sea water
|
58
|
35,000
|
|
brine
|
> 58
|
> 35,000
|
|
Classification
|
mM NaCl
|
Chloride in mg/L
|
|
fresh water
|
8
|
280
|
|
slightly brackish
|
17
|
600
|
|
medium brackish
|
17 to 80
|
600 to 2,800
|
|
brackish
|
80 to 250
|
2,800 to 5,000
|
|
strongly brackish
|
250 to 580
|
5,000 to 18,000
|
|
sea water
|
580
|
18,000
|
|
brine
|
> 580
|
> 18,000
|
where:
• The electrical conductivity value is 10% of the mM NaCl
