| Title | An approach to assess ecological risk for polycyclic aromatic hydrocarbons (PAHs) in surface water from Tianjin |
| Authors | Yang, Yu Shi, Xuan Wong, P. K. Dawson, Richard Xu, Fuliu Liu, Wenxin Tao, Shu |
| Affiliation | Peking Univ, Coll Environm Sci, Lab Earth Surface Proc, Beijing 100871, Peoples R China. Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China. |
| Keywords | probabilistic risk assessment equivalent concentration additive toxicity PAHs surface water EQUIVALENCY FACTORS WASTE-WATER TOXICITY MIXTURES SEDIMENT CHLORPYRIFOS ENVIRONMENT COPPER MODEL FATE |
| Issue Date | 2006 |
| Publisher | journal of environmental science and health part a toxichazardous substances environmental engineering |
| Citation | JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING.2006,41,(8),1463-1482. |
| Abstract | Three approaches were applied and compared to evaluate additive toxic effects of eight PAHs to aquatic organisms in rivers in the Tianjin area. Although the toxicity of the studied PAH compounds did not significantly increase the risk to aquatic organisms, the results of all three approaches indicated that the additive effect of the eight PAHs was significantly stronger than any individual compound acting alone, which indicated the applicability of the approaches. Further, of the compounds studied, anthracene was the major contributor to the overall toxic effect of the mixture. The calculated geometric means of the hazard quotient for the additive effect varied from 0.00055 to 0.00062, compared to the hazard quotient of individual PAHs which ranged from 5.1 x 10(-6) to 0.00053. The hazard quotient distribution geometric mean was 0.00058, with 95% of the quotient between 6.6 x 10(-5) and 0.051. Overlapping areas varied from 0.00015 to 0.02 for individual PAHs and was 0.03 for additive toxicity. |
| URI | http://hdl.handle.net/20.500.11897/198783 |
| ISSN | 1093-4529 |
| DOI | 10.1080/10934520600754755 |
| Indexed | SCI(E) EI PubMed |
| Appears in Collections: | 环境科学与工程学院 地表过程分析与模拟教育部重点实验室 |
