Stormwater pollutants and physicochemical parameters

Replications

Mean value

1

2

3

Physicochemical

parameters

DO (mg/l)

5.15

2.56

5.26

4.32

Turbidity (NTU)

777

675.3

454

635.43

EC (μs/cm)

44.9

41.7

63.4

50.00

pH

8.58

7.96

8.13

8.22

Heavy metals

Cu (mg/l)

0.12

0.08

0.03

0.08

Pb (mg/l)

BDL

BDL

BDL

-

Zn (mg/l)

2.30

3.72

5.06

3.69

Cr (mg/l)

BDL

BDL

BDL

-

Nutrients

NO₂-N (mg/l)

0.538

4.15

0.167

1.62

NO₃-N (mg/l)

0.179

0.094

0.393

0.074

NH₃-N (mg/l)

0.422

0.523

0.074

0.114

PO₄-P (mg/l)

0.374

0.196

0.0178

0.065