Table 4 Concentration of selected heavy metals (Fe, Cu, Mn, Ni, Cr, Cd, Pb, Zn) in fodder crop leaves and wastewater of Hudiara drain.

From: DNA damage in inhabitants exposed to heavy metals near Hudiara drain, Lahore, Pakistan

Paired comparison analysis

N

Mean

Std. deviation

t-Statistics

P-Values

Pair 1

Fe mg/l in stagnant water–Fe mg/l in hudiara drain water

10

395.05000

131.72349

21.207

0.000

Pair 2

Cu mg/l in stagnant water–Cu mg/l in hudiara drain water

10

411.18240

137.07649

21.211

0.000

Pair 3

Mn mg/l in stagnant water–Mn mg/l in hudiara drain water

10

54.880

16.473

23.557

0.000

Pair 4

Ni mg/l in stagnant water–Ni mg/l in hudiara drain water

10

80.660

49.933

11.422

0.000

Pair 5

Cr mg/l in Stagnant Water–Cr mg/l in hudiara drain water

10

176.560

93.018

13.422

0.000

Pair 6

Cd mg/l in stagnant water–Cd mg/l in hudiara drain Water

10

164.720

102.243

11.392

0.000

Pair 7

Pb mg/l in stagnant water–Pb mg/l in hudiara drain water

10

219.320

83.392

18.597

0.000

Pair 8

Zn mg/l in stagnant water–Zn mg/l in hudiara drain water

10

115.640

65.568

12.471

0.000