The weight-of-evidence approach is exemplified by James Omernik's work for the United States Environmental Protection Agency, subsequently adopted (with modification) for North America by the Commission for Environmental Cooperation.
权重方法的典例，是由James Omernik为美国国家环境保护局工作的成果，有所修改后被环境合作委员会（英语：Commission_for_Environmental_Cooperation）所接受。