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. 2017 Dec 14;14(12):1564. doi: 10.3390/ijerph14121564

Table 1.

Water quality indexes of different water matrices.

Parameter DW TW RW SW WW
pH 7.2 6.7 7.6 6.6 8.0
Conductivity (μs/cm) 0.25 71.9 1627 1.07 × 105 1700
Turbidity (NTU) 0.46 0.77 4.61 21.40 1.65
DO (mg/L) 87.2 82.6 77.1 80.5 1.5
TN (mg/L) 0.29 0.29 1.93 2.00 10.00
COD (mg/L) 0 47 334 1869 100

DW: deionized water; TW: tap water; RW: river water; SW: seawater; WW: synthetic wastewater; DO: dissolved oxygen; TN: total nitrogen; COD: chemical oxygen demand.