Research Article
Characteristics, Distribution, and Source Analysis of the Main Persistent Toxic Substances in Karst Groundwater at Jinan in North China
Table 5
Quality evaluation of organic compounds in fractured karst water.
| | Evaluating compounds | I | II | III | IV | V | | Groundwater quality standard (μg/L) | Fraction of samples meeting the standard (%) | Groundwater quality standard (μg/L) | Fraction of samples meeting the standard (%) | Groundwater quality standard (μg/L) | Fraction of samples meeting the standard (%) | Groundwater quality standard (μg/L) | Fraction of samples meeting the standard (%) | Groundwater quality standard (μg/L) | Fraction of samples meeting the standard (%) |
| | Trichloromethane | ≤0.5 | 77.85 | ≤6 | 20.13 | ≤60 | 2.01 | ≤300 | 0 | >300 | 0 | | Carbon tetrachloride | ≤0.5 | 87.25 | ≤0.5 | 0 | ≤2.0 | 4.70 | ≤50.0 | 7.38 | >50.0 | 0.67 | | 1,1,1-Trichloroethane | ≤0.5 | 100 | ≤400 | 0 | ≤2000 | 0 | ≤4000 | 0 | >4000 | 0 | | Trichloroethylene | ≤0.5 | 91.95 | ≤7.0 | 7.38 | ≤70.0 | 0.67 | ≤210 | 0 | >210 | 0 | | Tetrachloroethylene | ≤0.5 | 92.62 | ≤4.0 | 7.38 | ≤40.0 | 0 | ≤300 | 0 | >300 | 0 | | Dichloromethane | ≤1 | 100 | ≤2.0 | 0 | ≤20.0 | 0 | ≤500 | 0 | >500 | 0 | | 1,2-Dichloroethane | ≤0.5 | 100 | ≤3.0 | 0 | ≤30.0 | 0 | ≤40.0 | 0 | >40.0 | 0 | | 1,1,2-Trichloroethane | ≤0.5 | 98.66 | ≤0.5 | 0 | ≤5.0 | 0 | ≤60.0 | 0 | >60.0 | 1.34 | | 1,2-Dichloropropane | ≤0.5 | 98.66 | ≤0.5 | 0 | ≤5.0 | 1.34 | ≤60.0 | 0 | >60.0 | 0 | | Bromoform | ≤0.5 | 95.97 | ≤10.0 | 4.03 | ≤100 | 0 | ≤800 | 0 | >800 | 0 | | Vinyl chloride | ≤0.5 | 100 | ≤0.5 | 0 | ≤5.0 | 0 | ≤90.0 | 0 | >90.0 | 0 | | 1,1-Dichloroethylene | ≤0.5 | 100 | ≤3.0 | 0 | ≤30.0 | 0 | ≤60.0 | 0 | >60.0 | 0 | | cis-1,2-Dichloroethylene | ≤0.5 | 95.3 | ≤5.0 | 3.36 | ≤50.0 | 1.34 | ≤60.0 | 0 | >60.0 | 0 | | Chlorobenzene | ≤0.5 | 100 | ≤60.0 | 0 | ≤300 | 0 | ≤600 | 0 | >600 | 0 | | Phthalates | ≤0.5 | 100 | ≤200 | 0 | ≤1000 | 0 | ≤2000 | 0 | >2000 | 0 | | Dichlorobenzene | ≤0.5 | 100 | ≤30.0 | 0 | ≤300 | 0 | ≤600 | 0 | >600 | 0 | | Benzene | ≤0.5 | 100 | ≤1.0 | 0 | ≤10.0 | 0 | ≤120 | 0 | >120 | 0 | | Toluene | ≤0.5 | 100 | ≤140 | 0 | ≤700 | 0 | ≤1400 | 0 | >1400 | 0 | | Ethylbenzene | ≤0.5 | 100 | ≤30.0 | 0 | ≤300 | 0 | ≤600 | 0 | >600 | 0 | | Ditoluene | ≤0.5 | 100 | ≤100 | 0 | ≤500 | 0 | ≤1000 | 0 | >1000 | 0 | | Styrene | ≤0.5 | 100 | ≤2.0 | 0 | ≤20.0 | 0 | ≤40.0 | 0 | >40.0 | 0 | | Total BHC | ≤0.01 | 95.97 | ≤0.50 | 4.03 | ≤5.00 | 0 | ≤300 | 0 | >300 | 0 | | γ-BHC (lindane) | ≤0.01 | 100 | ≤0.20 | 0 | ≤2.00 | 0 | ≤150 | 0 | >150 | 0 | | Total DDT | ≤0.01 | 100 | ≤0.10 | 0 | ≤1.00 | 0 | ≤2.00 | 0 | >2.00 | 0 | | Hexachlorobenzene | ≤0.01 | 100 | ≤0.10 | 0 | ≤1.00 | 0 | ≤2.00 | 0 | >2.00 | 0 | | Benzo(a) pyrene | ≤0.002 | 100 | ≤0.002 | 0 | ≤0.01 | 0 | ≤0.50 | 0 | >0.50 | 0 |
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