River water

[Tom]

#This topic aims to collate some global river water compositions. The top post will include mean river chemistry compositions.

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SOLUTION 1 #Mean river water, after Livingstone (1963) (in Langmuir, 1997), pH not provided, TDS = 120 mg/L
units ppm
Ca 15
Mg 4.1
Na 6.3
K 2.3
Cl 7.8
C(4) 60 #as HCO3
S(6) 11
Si 13.1 #as SiO2
Fe 0.67
Al 0.07

END

#Full reference:

#Livingstone, D.A. (1963). Chemical composition of rivers and lakes. U.S. Geol. Surv. Prof. Pap. 440G. 63 p.

[Tom]

#Composition of Parana River (South America, discharge-weighted mean) from Depetris (1976).

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SOLUTION 1 #pH not given, dissolved salts 79.8 ppm.
units ppm
C(4) 30.7 #as HCO3
Cl 5.9
S(6) 3.2
Ca 5.4
Mg 2.4
Na 5.5
K 1.8
Fe 0.5
Si 14.3 #as SiO2

END

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#Full reference:

#Depetris, P.J. (1976). Hydrochemistry of the Parana River. Limonology and Oceanography. 21 (5), 736-739.