PMID- 20936560 OWN - NLM STAT- MEDLINE DCOM- 20110202 LR - 20160526 IS - 1532-4117 (Electronic) IS - 1093-4529 (Linking) VI - 45 IP - 14 DP - 2010 Dec TI - Deriving the aquatic predicted no-effect concentrations (PNECs) of three chlorophenols for the Taihu Lake, China. PG - 1823-31 LID - 10.1080/10934529.2010.520495 [doi] AB - The Predicted No-Effect Concentration (PNEC) is a key for ecological risk assessment. In this paper, the aquatic species existing widely in the Taihu Lake were selected, and their toxicity data to 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP) and pentachlorophenol (PCP) were collected. The PNECs of 2,4-DCP; 2,4,6-TCP; and PCP were derived using three different approaches, i.e., the assessment factor (AF), species sensitivity distribution (SSD) as well as an eco-toxicological model (AQUATOX). As the results, PNEC(AF)s were 2.18 mug L(-1), 2.53 mug L(-1) and 0.26 mug L(-1), and PNEC(SSD)s were 77 mug L(-1), 197 mug L(-1) and 10 mug L(-1), respectively for 2,4-DCP; 2,4,6-TCP; and PCP respectively. Based on the aquatic conditions of the Taihu Lake, the derived site-specific PNEC(AQUATOX)s were 15 mug L(-1), 67 mug L(-1) and 4 mug L(-1), respectively. In general, the PNECs for three chlorophenols derived from different approaches followed the declined order of PNEC(SSD) > PNEC(AQUATOX) > PNEC(AF). The ratios of PNEC(AF) to PNEC(SSD) and PNEC(AQUATOX) to PNEC(SSD) for three chlorophenols were 0.013-0.028 and 0.19-0.4, respectively. It indicated that PNECs obtained using different approaches may vary and the one based on the AF was the lowest. Therefore, PNEC(AF) can be seen as overprotective. The PNEC(AQUATOX) values for three chlorophenols were less than the corresponding PNEC(SSD) values, mostly because the indirect effects were considered in the ecological model. FAU - Lei, Bing L AU - Lei BL AD - State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China. FAU - Huang, Sheng B AU - Huang SB FAU - Jin, Xiao W AU - Jin XW FAU - Wang, Zijian AU - Wang Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Environ Sci Health A Tox Hazard Subst Environ Eng JT - Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering JID - 9812551 RN - 0 (Chlorophenols) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animals MH - Aquatic Organisms/*drug effects/growth & development MH - China MH - Chlorophenols/*analysis/chemistry/toxicity MH - Ecotoxicology MH - Environmental Monitoring/*methods/statistics & numerical data MH - Fresh Water/*analysis MH - Models, Biological MH - Monte Carlo Method MH - No-Observed-Adverse-Effect Level MH - Predictive Value of Tests MH - Risk Assessment MH - Species Specificity MH - Water Pollutants, Chemical/*analysis/chemistry/toxicity EDAT- 2010/10/12 06:00 MHDA- 2011/02/03 06:00 CRDT- 2010/10/12 06:00 PHST- 2010/10/12 06:00 [entrez] PHST- 2010/10/12 06:00 [pubmed] PHST- 2011/02/03 06:00 [medline] AID - 927853822 [pii] AID - 10.1080/10934529.2010.520495 [doi] PST - ppublish SO - J Environ Sci Health A Tox Hazard Subst Environ Eng. 2010 Dec;45(14):1823-31. doi: 10.1080/10934529.2010.520495.