点源基于地表水质排放限值制度设计

针对我国点源排放标准不能确保具体点源所排入的水体地表水质达标的问题，借鉴美国点源基于地表水质排放限值的规则和方法的经验，论证我国建立点源基于地表水质排放限值的必要性，提出点源基于地表水质排放限值的制度框架，并提出政策建议：在法规中补充点源基于地表水质排放限值的相关要求；明确点源排污许可证的制定必须要计算点源基于地表水质的排放限值，并采取与已有的排放标准中严者作为点源的排放限值；授权省级政府制定混合区划定法规.

Research on the design of point source water quality-based effluent limitations system in China

China's existing effluent limitations for point sources of water pollution can not ensure that the receiving water body meets the water quality standards. This paper first studied the experience of the design rules and methods for water quality-based effluent limitations (WQBELs) of the United States; subsequently, the necessity of establishing the WQBELs in China was demonstrated and a policy framework of WQBELs was put forward; finally, several policy suggestions were proposed, such as application of WQBELs should be supplemented in relevant laws and regulations; WQBELs must be calculated and compared with technology-based limitations (TBELs), and the stricter one should be adopted in point source discharge permits; the provincial government should be given the authority to formulate regulations for the delimitation of mixing zones.