Sample location

PO₄³⁻ (ppm)

SO₄²⁻ (ppm)

NO₃⁻ (ppm)

Pb (ppm)

Cd (ppm)

Cr (ppm)

At the intake level

-

16.00

1.09

10.20

0.59

0.53

At irrigated perimeter level

-

16.50

1.49

4.20

0.21

0.10

At the outlet of the perimeter

-

12.70

1.28

3.60

0.21

0.10

Average

-

15.00

1.28

6.00

0.33

0.243