Kim Eunhee, Jun You-Ree, Jo Hun-Je, Shim Seung-Bo, Jung Jinho
BK21 Environmental and Ecological Engineering Research Team, Korea University, Anam-dong 5 Ga, Sungbuk-gu, Seoul 136-713, Republic of Korea.
Mar Pollut Bull. 2008;57(6-12):637-44. doi: 10.1016/j.marpolbul.2008.02.042. Epub 2008 Apr 11.
Because of complexity and diversity of toxicants in effluent, chemical analysis alone gives very limited information on identifying toxic chemicals to test organisms. Toxicity identification evaluation (TIE) techniques have been widely used to identify toxicants in various samples including industrial wastewater as well as natural waters. In response to new regulation for effluent discharge in Korea, which will be effective from 2011, a necessity of studies emerges that investigates toxicity levels in industrial effluents. This work was a preliminary study examining toxicity levels in effluent from one metal plating factory using Daphnia magna (48 h immobility) and identifying toxicity-causing substances. Toxicity tests showed variability on different sampling occasions and the results of TIE methods indicated that both organic compounds and metals contributed to the observed toxicity in metal plating effluent. Further studies are necessary to help reduce effluent toxicity especially from direct dischargers, who will have to comply with the new regulation.
由于废水中有毒物质的复杂性和多样性，仅靠化学分析在识别对受试生物有毒的化学物质方面提供的信息非常有限。毒性鉴定评估（TIE）技术已被广泛用于识别各种样品中的有毒物质，包括工业废水和天然水体。为响应韩国将于2011年生效的新的废水排放法规，开展有关调查工业废水毒性水平的研究显得很有必要。本研究是一项初步研究，利用大型溞（48小时静止不动）检测一家金属电镀厂废水的毒性水平，并识别造成毒性的物质。毒性测试在不同采样时段显示出变异性，TIE方法的结果表明，有机化合物和金属都对金属电镀废水中观察到的毒性有影响。有必要开展进一步研究，以帮助降低废水毒性，特别是来自直接排放者的废水毒性，因为这些排放者必须遵守新法规。
