Research Article
Heavy Metal Contamination of Soils around a Hospital Waste Incinerator Bottom Ash Dumps Site
Table 3
Heavy metals detected in bottom ash.
| Heavy metals | = items (30 samples) | Mean conc. of metal (mg/kg) | Std. deviation | USEPA allowable limits for waste disposal to landfill |
| Hg mg/kg | 30 | 0.88 | ±0.05 | 0.2 | Pb mg/kg | 30 | 143.80 | ±39.5 | 5.0 | Zn mg/kg | 30 | 16417.69 | ±195.18 | NA | Ag mg/kg | 30 | 28.38 | ±0.97 | 5.0 | Cr mg/kg | 30 | 99.30 | ±3.0 | 5.0 | Cd mg/kg | 30 | 7.54 | ±2.67 | 1.0 |
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NA: not available.
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