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Table 1 Mean heavy metal concentration of irrigation water of Addis Ababa vegetable farming sites

From: Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

Site Total concentration (μg L−1)
Cd Co Cr Cu Ni Pb Zn
Sora Amba 0.43(0.05) 3.68(0.72) 17.7(2.27) 6.83(1.08) 11.5(2.08) 5.33(0.96) 40.9(6.35)
Lekunda 0.80(0.07) 14.6(1.55) 29.3(3.41) 38.6(3.62) 16.2(2.25) 21.8(2.28) 58.5(5.09)
Peacock-Urael 0.37(0.06) 7.28(0.92) 8.53(1.08) 30.7(3.42) 24.4(2.56) 6.82(0.58) 49.7(4.79)
Peacock-Bole 0.17(0.05) 5.48(0.94) 3.09(0.51) 8.04(1.31) 5.97(0.86) 13.8(3.06) 54.0(5.78)
Kera 2.82(0.62) 16.3(2.37) 44.2(6.38) 71.5(6.73) 29.6(3.55) 47.7(4.98) 88.4(12.9)
Mekanissa 0.81(0.05) 8.73(1.35) 19.8(2.75) 27.7(3.39) 53.9(5.50) 9.48(1.93) 112(16.4)
Lafto 1.48(0.26) 21.6(3.64) 14.2(1.15) 78.3(8.32) 36.5(3.68) 36.9(2.75) 56.9(5.12)
Hana-Mariam 1.05(0.25) 23.7(3.00) 35.1(4.92) 17.7(2.73) 9.48(1.90) 19.4(2.02) 69.6(2.45)
Akaki08 0.57(0.04) 3.38(0.64) 24.4(3.09) 49.2(6.22) 16.2(2.67) 18.6(2.32) 62.8(6.13)
Akaki 0.33(0.04) 5.57(0.47) 14.8(2.69) 36.1(4.10) 8.44(1.76) 16.8(2.00) 44.8(4.03)
RML (μg L−1) 10 50 100 200 200 5000 2000
  1. Figures in parentheses represent standard deviation
  2. RML Recommended Maximum Limit for irrigation water by FAO (Ayers and Westcot 1985)