Table 3 Metal concentrations in vegetables grown in wastewater-irrigated urban farming sites

Sora Amba

Lactuca sativa var. crispa

0.54(0.06)

0.42(0.08)

5.28(0.50)

23.9(0.69)

3.49(0.40)

10.5(0.88)

57.7(8.91)

Brassica carinata A. Br.

0.34(0.03)

0.32(0.03)

4.47(0.71)

12.0(1.26)

3.13(0.50)

7.16(1.03)

80.2(16.6)

Beta Vulgaris var. cicla

0.39(0.05)

0.54(0.08)

2.85(0.33)

17.0(1.16)

5.94(0.36)

8.63(0.74)

84.8(9.21)

Lekunda

Lactuca sativa var. crispa

0.73(0.11)

0.70(0.07)

6.29(0.63)

34.3(1.54)

5.44(0.59)

10.7(0.82)

87.1(10.7)

Brassica carinata A. Br.

0.45(0.11)

0.51(0.10)

3.11(0.54)

16.0(1.82)

2.87(0.49)

6.52(0.68)

76.8(5.32)

Beta Vulgaris var. cicla

0.62(0.08)

0.91(0.06)

3.81(0.30)

38.9(1.42)

4.92(0.37)

12.6(1.50)

105(8.26)

Peacock-Urael

Lactuca sativa var. crispa

0.56(0.11)

0.48(0.12)

2.38(0.18)

13.7(1.02)

3.28(0.46)

8.88(0.95)

63.4(5.22)

Brassica carinata A. Br.

0.53(0.20)

0.65(0.12)

1.56(0.14)

14.5(1.24)

2.78(0.42)

6.12(0.83)

89.6(10.2)

Beta Vulgaris var. cicla

0.76(0.11)

0.76(0.04)

2.36(0.22)

24.3(1.06)

5.24(0.52)

9.79(0.83)

87.0(8.70)

Peacock-Bole

Lactuca sativa var. crispa

0.40(0.10)

0.53(0.07)

3.08(0.10)

23.2(1.03)

5.21(0.55)

12.9(0.61)

56.9(3.90)

Brassica carinata A. Br.

0.35(0.04)

0.52(0.12)

1.17(0.20)

21.4(1.24)

3.01(0.53)

7.90(0.88)

66.3(6.12)

Beta Vulgaris var. cicla

0.31(0.01)

0.59(0.05)

3.43(0.36)

23.6(1.74)

4.54(0.39)

13.2(0.96)

82.5(7.70)

Kera

Lactuca sativa var. crispa

1.59(0.13)

0.81(0.06)

8.01(0.60)

36.2(1.67)

2.78(0.31)

12.7(0.87)

94.4(11.6)

Brassica carinata A. Br.

0.87(0.12)

0.78(0.07)

4.06(0.68)

21.5(1.54)

2.34(0.42)

8.57(0.63)

105(9.80)

Beta Vulgaris var. cicla

1.09(0.11)

1.23(0.16)

5.53(0.79)

25.1(1.83)

4.12(0.29)

15.9(0.90)

129(10.2)

Mekanissa

Lactuca sativa var. crispa

0.78(0.08)

1.45(0.08)

5.07(0.67)

31.0(8.32)

7.86(0.58)

9.22(1.57)

67.7(4.93)

Brassica carinata A. Br.

0.71(0.13)

0.63(0.08)

6.32(0.68)

15.5(1.44)

4.00(0.34)

6.74(1.20)

91.3(9.22)

Beta Vulgaris var. cicla

0.86(0.07)

1.86(0.17)

6.21(0.55)

31.3(3.73)

6.67(0.55)

8.79(1.31)

78.9(11.5)

Lafto

Lactuca sativa var. crispa

1.79(0.12)

1.30(0.15)

6.95(0.32)

35.0(1.30)

4.30(0.56)

8.46(1.47)

82.5(10.9)

Brassica carinata A. Br.

1.17(0.06)

0.71(0.10)

6.57(0.42)

27.8(2.58)

5.19(0.71)

9.50(1.57)

109(11.9)

Beta Vulgaris var. cicla

1.65(0.09)

1.61(0.07)

7.62(0.48)

37.1(4.08)

7.99(0.84)

13.8(1.37)

117(9.42)

Hana-Mariam

Lactuca sativa var. crispa

0.49(0.15)

0.91(0.05)

5.40(0.80)

20.9(1.18)

7.08(0.41)

9.14(1.56)

72.2(7.84)

Brassica carinata A. Br.

0.44(0.09)

0.78(0.07)

2.09(0.38)

17.4(1.09)

3.78(0.32)

4.14(0.50)

85.5(9.95)

Beta Vulgaris var. cicla

0.68(0.12)

1.83(0.16)

4.58(0.35)

30.3(1.14)

10.3(0.66)

7.19(1.66)

77.7(11.7)

Akaki08

Lactuca sativa var. crispa

0.80(0.17)

0.78(0.08)

2.88(0.28)

24.7(1.36)

5.30(0.39)

9.23(0.65)

67.6(5.01)

Brassica carinata A. Br.

0.39(0.08)

0.70(0.10)

5.13(0.80)

22.9(1.50)

3.14(0.21)

4.95(0.78)

84.1(6.82)

Beta Vulgaris var. cicla

0.58(0.09)

1.47(0.10)

3.93(0.39)

44.3(4.44)

6.40(0.47)

8.61(1.80)

98.9(5.81)

Akaki

Lactuca sativa var. crispa

1.05(0.14)

0.94(0.12)

5.39(0.62)

19.6(1.83)

4.42(0.92)

6.92(1.18)

79.8(8.87)

Brassica carinata A. Br.

0.72(0.09)

0.73(0.11)

3.92(0.58)

13.3(1.00)

3.29(0.33)

4.84(0.53)

92.6(9.34)

Beta Vulgaris var. cicla

0.71(0.11)

1.18(0.14)

3.89(0.15)

34.2(4.23)

5.98(0.68)

11.8(1.04)

87.5(9.46)

RML (mg kg⁻¹ dry weight)

2.35^a

50^b

27.1^c

235^d

800^d

3.53^a

588^d