Concepts of justice are implicit to impact assessment (IA) procedures and policies. A closer examination of the academic literature on environmental justice reveals plural meanings and practices. We present data from a scoping review of the academic literature on IA guided by a trivalent definition of environmental justice encompassing distribution of environmental harms, recognition of diverse ways of knowing, and representation of plural perspectives through democratic procedures. We use this trivalent framework to assess how justice is defined in English language IA journal articles from 2000 to 2019. Findings show an emphasis on distributive and procedural dimensions of justice, with significantly less attention given to issues of recognition and framing. Broad definitions of environmental justice can assist IA scholars in attending to justice-seeking claims across various IA practices and settings, including implications for how IA addresses the concerns of marginalized groups.

正义概念对于影响评估（IA）程序和政策而言是隐含的。仔细研究有关环境正义的学术文献，可以发现多元的意义和实践。我们以范围广泛的关于环境正义的三义定义为指导，介绍了有关IA的学术文献的范围界定的数据，这些定义包括环境损害的分布，认识各种知识的方式以及代表性通过民主程序的多元观点。我们使用这种三价框架来评估2000年至2019年在IA期刊英语文章中如何定义正义。研究结果表明，对正义的分配和程序方面的重视，而对认可和框架问题的关注则大大减少。广泛的环境正义定义可以帮助IA学者在IA各种实践和环境中处理寻求正义的主张，包括对IA如何解决边缘化群体的关注的含义。