Table 4 Absorption of heavy metals (mg/kg) in water samples used for irrigation purposes, collected from various peri-urban agricultural systems of Vehari district, Pakistan

Main

Wastewater

0.38 ± 0.1

0.054 ± 0.007

0.07 ± 0.009

Canal Water

0.063 ± 0.004

0.022 ± 0.003

0.04 ± 0.004

Tube well Water

0.053 ± 0.009

0.01 ± 0.003

0.03 ± 0.004

Sub

W50%+C50%

0.67 ± 0.007

0.04 ± 0.004

0.06 ± 0.03

W50%+T50%

0.063 ± 0.008

0.03 ± 0.002

0.08 ± 0.004