Research Article
Fate and Distribution of Heavy Metals in Wastewater Irrigated Calcareous Soils
Table 1
Chemical and physical properties of Wadi Dhuleil (WD) and Zarqa River (ZR) soils at 0–20 cm depth.
| | Parameter | Unit | Soil sample | | WD1 | WD2 | WD3 | ZR1 | ZR2 | ZR3 |
| | Particle size | | SL | SL | SL | SL | SL | SL | | pH | | 8.4 | 8.3 | 8.4 | 8.3 | 8.6 | 8.2 | | EC | dS m−1 | 2.1 | 3.2 | 2.2 | 3.7 | 3.0 | 2.2 | | CEC | cmol kg−1 | 19.4 | 20.7 | 21.1 | 22.3 | 17.2 | 20.3 | | ESP | % | 8.9 | 9.2 | 2.6 | 9.9 | 1.8 | 3.9 | | OM | % | 2.0 | 1.1 | 2.1 | 1.6 | 1.0 | 2.1 | | CaCO3 | % | 33.1 | 32.5 | 36.1 | 40.6 | 61.6 | 22.3 | | Fe | % | 0.56 | 0.63 | 0.58 | 0.51 | 0.51 | 0.53 | | Ca | mg kg−1 | 2759.1 | 2891.1 | 5508.8 | 3549.0 | 2421.3 | 5051.4 | | Mg | mg kg−1 | 552.6 | 594.3 | 178.8 | 737.1 | 175.5 | 475.2 | | Na | mg kg−1 | 398.0 | 439.7 | 125.6 | 509.2 | 70.0 | 181.2 | | K | mg kg−1 | 42.3 | 49.9 | 29.4 | 26.9 | 36.8 | 31.9 | | Fe | mg kg−1 | 3.6 | 3.6 | 3.5 | 3.7 | 3.9 | 3.5 | | mg kg−1 | 18.7 | 37.0 | 18.6 | 14.8 | 31.6 | 43.0 | | mg kg−1 | 35.0 | 37.0 | 43.5 | 87.2 | 39.6 | 94.8 |
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