与美国环保局生态风险评估的基本框架相比，超级基金生态风险评估程序实现了

Compared with the basic framework of the United States Environmental Protection Agency's ecological risk assessment, the Super Fund's ecological risk assessment program has achieved graded assessment. First of all, preliminary risk screening is carried out by comparison with ecological screening values, so that subsequent work can focus on important pressures, exposure pathways and end points. (Note)

Compared with the basic framework of the ecological risk assessment of the U.S. Environmental Protection Agency, the super fund ecological risk assessment process is graded. First, initial risk screening is performed by comparing ecological screening values so that subsequent priorities can be focused on critical stress, exposure pathways, and endpoints. (Note)

Compared with the basic framework of the US EPA ecological risk assessment, the ecological risk assessment procedure of the super fund has realized the hierarchical assessment. First of all, preliminary risk screening is carried out by comparing with ecological screening values, so that subsequent work can focus on important stress, exposure routes and endpoints. (note)<br>