Element or parameter
Concentration (mg.L
-1
) or parameter values
As
2.5 ± 0.04
Ca
429 ± 5
Fe
<0.05
K
156 ± 1
Mg
233 ± 1
Mn
0.04 ± 0.04
Na
2418 ± 13
P
0.15 ± 0.07
S
292 ± 3
B
37.5 ± 2.8
Cl
4213 ± 27
pH
7.8 ± 0.2
EC (mS cm
-1
)
14.1 ± 0.4
E (mV)
124 ± 9
TDS (g L
-1
)
8.73 ± 0.4
Table 1:
Ion concentration (in mg.L
-1
), pH, electrical conductivity (CE), redox potential (E) and total dissolved solids (TDS) in sample of water issued from the Rio Loa. Each value is the mean of 5 replicates ± S.E.
