| Title |
Categorization of Hazard Chemicals Potentially Discharged into Water System |
| Authors |
안윤주 ( Youn Joo An ) ; 남선화 ( Sun Hwa Nam ) ; 이재관 ( Jae Kwan Lee ) |
| Keywords |
Categorization; Hazard chemical; Risk; Water quality; Water system |
| Abstract |
The utilization of a variety of hazard chemicals bears risks to human health and ecosystem. The increasing usage of various chemicals indicates the greater emission of those chemicals to water system, and the subsequent deterioration of water quality. Water system is vulnerable to many pollutants, however, there are limitations of managing a range of hazard chemicals based on insufficient legal foundations. Therefore it is needed to select hazard chemicals that can be potentially discharged into water system, and subsequently to classify a wide range of existing chemicals for better management of those chemicals. In this study, the 259 candidate chemicals of concern were selected from the lists of the toxic released inventory chemicals (148), hazard concern candidate chemicals (106), and wastewater effluent standard candidate chemicals (116). We suggested the category 1, 2, 3 and 4 of hazard chemicals potentially discharged into water system. The assessment factors considered for the classification were hazard potential, persistence and emission to water body. This work was conducted as a part of the project entitled ``Development of integrated methodology for evaluation of water environment``, and the results were used to develop the monitoring lists of hazard chemicals in four major rivers in Korea. |