National Institute of Environmental Research, Han River Environment Research Center, 42, Dumulmeori-gil 68beon-gil, Yangseo-myeon, Yangpyeong-gun, Gyeonggi-do 12585, Korea.
Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, TX 76798, USA.
Int J Environ Res Public Health. 2021 Apr 2;18(7):3727. doi: 10.3390/ijerph18073727.
Increasing public awareness about the aesthetics and safety of water sources has shifted researchers' attention to the adverse effects of volatile organic compounds (VOCs) on humans and aquatic organisms. A total of 17 VOCs, including 10 volatile halogenated hydrocarbons and seven volatile non-halogenated hydrocarbons, were investigated at 36 sites of the Han River Basin, which is the largest and most important drinking water source for residents of the Seoul metropolitan area and Gyeonggi province in South Korea. The VOC concentrations ranged from below detection limits to 1.813 µg L. The most frequently detected VOC was 1,2-dichloropropane, with a detection frequency of 80.56%, as it is used as a soil fumigant, chemical intermediate, and industrial solvent. In terms of geographical trends, the sampling sites that were under the influence of sewage and industrial wastewater treatment plants were more polluted with VOCs than other areas. This observation was also supported by the results of the principal component analysis. In the present study, the detected concentrations of VOCs were much lower than that of the predicted no-effect concentrations, suggesting low ecological risk in the Han River. However, a lack of available ecotoxicity data and limited comparable studies warrants further studies on these compounds.
提高公众对水源美学和安全性的认识，使研究人员将注意力转向挥发性有机化合物 (VOCs) 对人类和水生生物的不利影响。在韩国首尔大都市区和京畿道居民的最大和最重要的饮用水源——汉江流域的 36 个地点，共调查了 17 种 VOC，包括 10 种挥发性卤代烃和 7 种挥发性非卤代烃。VOC 浓度范围从低于检测限到 1.813 µg/L。最常检测到的 VOC 是 1,2-二氯丙烷，其检出率为 80.56%，因为它被用作土壤熏蒸剂、化学中间体和工业溶剂。就地理趋势而言，受污水和工业废水处理厂影响的采样点受到 VOC 的污染比其他地区更严重。主成分分析的结果也支持了这一观察结果。在本研究中，检测到的 VOC 浓度远低于预测无影响浓度，表明汉江的生态风险较低。然而，由于缺乏可用的生态毒性数据和有限的可比研究，这些化合物需要进一步研究。
