Research Article
Survey and Risk Assessment of Contaminants in Soil from a Nitrogenous Fertilizer Plant Located in North China
Table 7
Pollutant levels from different layers and locations.
| | Pollutant | Layer | Polluted area (m2) | Maximum pollutant concentration (mg/kg) | Maximum ratio | Distribution region |
| | Cu | 1 | 908.09 | 6590 | 3.30 | Copper washing compression workshop (T6) | | 2 | 1038.06 | 6162 | 3.08 | Production area entrance (T45) | | 3 | 253.45 | 5050 | 2.53 | Copper washing compression workshop (T6) |
| | TPH | 1 | 2730.22 | 16263 | 19.69 | Compression workshop (T40) | | 2 | 318.48 | 2130 | 2.58 | Compression workshop (T8) |
| | NH3-N | 1 | 1829.33 | 3951 | 3.30 | Carbonization transformation workshop (T24) | | 2 | 5739.5 | 3316 | 2.14 | Carbonization transformation workshop (T50) | | 3 | 1516.05 | 2799 | 1.81 | Copper washing compression workshop (T40) | | 4 | 2844.85 | 3713 | 2.40 | Copper washing compression workshop (T35) | | 5 | 2484.11 | 3785 | 2.44 | Carbonization transformation workshop (T28) | | 6 | 150.97 | 1747 | 1.13 | Copper washing compression workshop (T33) |
| | Fluoride | 1 | 7 | 1150 | 1.10 | Carbonization transformation workshop (T12) |
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NH3-N, ammonia-nitrogen; TPH, total petroleum hydrocarbons.
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