Research Article
Assessment of Health Risks in Wheat Crop Irrigated by Manka Canal, Dera Ghazi Khan, Pakistan
Table 3
Contamination categories based on geo-accumulation index (
).
| | Class | value | Classification |
| | 0 | <0 | Uncontaminated | | 1 | 0-1 | Uncontaminated to moderately contaminated | | 2 | 1-2 | Moderately contaminated | | 3 | 2-3 | Moderately to strongly contaminated | | 4 | 3-4 | Strongly contaminated | | 5 | 4-5 | Strongly to extremely strongly contaminated | | 6 | >5 | Extremely contaminated |
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Source: Muller, 1998.
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