Research Article
Concentration Levels and Ecological Risks of Persistent Organic Pollutants in the Surface Sediments of Tianjin Coastal Area, China
Table 3
Threshold effect concentration hazard quotients (TEC-HQ) for PAHs*.
| PAH | TEC (g/kg) | b1 | b2 | b3 | b4 | b5 | b6 | b7 | b8 | b9 | b10 |
| Naphthalene | 176 | 4.38 | 3.74 | 3.31 | 0.72 | 0.51 | 0.83 | 0.43 | 0.48 | 0.44 | 1.29 | Acenaphthylene | 5.87 | 7.12 | 2.58 | 4.21 | 1.82 | 0.71 | 1.33 | 0.69 | 7.30 | 0.67 | 2.38 | Acenaphthene | 6.71 | 51.30 | 11.55 | 7.69 | 7.60 | 3.41 | 4.99 | 5.06 | 3.14 | 4.03 | 53.46 | Fluorene | 77.4 | 3.17 | 1.03 | 1.68 | 2.70 | 0.36 | 1.06 | 0.53 | 0.49 | 0.36 | 3.30 | Phenanthrene | 204 | 1.42 | 0.51 | 1.53 | 0.27 | 0.19 | 1.05 | 0.28 | 0.41 | 0.15 | 0.66 | Anthracene | 57.2 | 0.92 | 0.27 | 1.05 | 0.18 | 0.08 | 0.72 | 0.17 | 0.51 | 0.11 | 0.47 | Fluoranthene | 423 | 0.02 | 0.16 | 0.61 | 0.22 | 0.08 | 0.65 | 0.13 | 0.77 | 0.08 | 0.01 | Pyrene | 195 | 1.23 | 0.29 | 1.40 | 0.40 | 0.13 | 1.13 | 0.24 | 1.00 | 0.14 | 0.40 | Benzo(a)anthracene | 108 | 0.67 | 0.07 | 0.39 | 0.14 | 0.03 | 0.70 | 0.03 | 0.32 | 0.03 | 0.28 | Chrysene | 166 | 0.47 | 0.11 | 0.71 | 0.08 | 0.04 | 1.04 | 0.08 | 0.51 | 0.05 | 0.22 | Benzo(b)fluoranthene | 240 | 0.18 | 0.00 | 0.22 | 0.07 | 0.04 | 0.28 | 0.06 | 0.22 | 0.04 | 0.08 | Benzo(k)fluoranthene | 150 | 0.60 | 0.04 | 0.71 | 0.04 | 0.03 | 0.91 | 0.05 | 0.20 | 0.03 | 0.25 | Benzo(a)pyrene | 200 | 0.39 | 0.01 | 0.30 | 0.03 | 0.01 | 0.65 | 0.03 | 0.09 | 0.01 | 0.19 | Indeno(1,2,3-cd)pyrene | 33 | 0.67 | 0.02 | 0.43 | 0.04 | 0.02 | 0.17 | 0.04 | 0.09 | 0.02 | 0.29 | Dibenzo(a,h)anthracene | 170 | 0.53 | 0.02 | 0.31 | 0.03 | 0.02 | 0.56 | 0.03 | 0.07 | 0.00 | 0.01 |
| | 1610 | 1.65 | 0.70 | 1.38 | 0.45 | 0.18 | 1.12 | 0.24 | 0.71 | 0.17 | 0.84 |
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*Numbers in bold indicate TEC-HQ > 1.
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