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Table 3 Water and sediment characteristics (mean ± SD) measured in Olifantsnek and Bospoort Dams during the field exposure

From: Laboratory and field studies on the use of artificial mussels as a monitoring tool of platinum exposure in the freshwater environment

  Code Olifantsnek Dam Bospoort Dam
Water parameters
 pH pH 8.1 ± 0.2 7.4 ± 0.4
 Electrical conductivity (µS/cm) EC 200 ± 15 1356 ± 277
 Temperature (°C) Temp 23.8 ± 0.7 25.7 ± 3.7
 Dissolved oxygen (mg/L) DO 8.0 ± 3.6 5.5 ± 3.7
 Turbidity (FAU) Turb 38 ± 5 9 ± 2
 Ammonium (mg/L) NH4+ 0.02 ± 0.01 0.13 ± 0.01
 Nitrate (mg/L) NO3 0.32 ± 0.04 0.14 ± 0.05
 Nitrite (mg/L) NO2 0.007 ± 0.004 0.004 ± 0.001
 Ortho-phosphate (mg/L) PO43− 0.04 ± 0.01 0.20 ± 0.01
 Chloride (mg/L) Cl 12 ± 1.0 240 ± 3.8
 Sulfate (mg/L) SO42− 86 ± 4.7 233 ± 3.8
 Suspended solids (mg/100 mL) SS 3.8 ± 2.8 1.9 ± 1.1
Sediment parameters
 Organic content (%) OC 3.4 ± 1.4 2.3 ± 0.5
 Gravel (%) G 0.3 ± 0.2 5.9 ± 3.6
 Very coarse sand (%) VCS 0.5 ± 0.2 6.4 ± 3.9
 Coarse sand (%) CS 2.6 ± 0.8 26.1 ± 9.9
 Medium sand (%) MS 9.6 ± 6.7 34.5 ± 5.6
 Fine sand (%) FS 73.1 ± 1.6 22.7 ± 3.9
 Mud (%) M 13.9 ± 9.1 4.3 ± 1.0
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