Purpose: The purpose of the study is to review some of the existing gaps in the third-generation of critical environmental justice (EJ) research and then propose promising combinations of theoretical concepts by adjoining (EJ) literature with other bodies of work with the use of qualitative research methods. Design/methodology/approach: This paper is a critique of the third-generation of critical EJ literature. It demonstrates how the scope of this scholarship, particularly the third world EJ studies, can be expanded further by deploying various combinations of other theories and qualitative research methods. Findings: Conceptually, this paper provides insights into the new directions that third world EJ theory can take by drawing from other bodies of work including the developmental state, caste, waste, informal sector and labor studies within its fold. Methodologically, the paper shows why and how qualitative research methods including single and multiple case study, participatory action research and ethnography can assist in developing these new integrations between theories. Research limitations/implications: This research calls for the need to conduct studies in each of the new research dimension suggested in this paper in novel empirical spaces. Such studies will enable the practice of EJ and will help to advance the field of EJ scholarship forward. Social implications: Analysis of new research combinations with qualitative research methods in new empirical spaces might create scope for practicing EJ in such spaces where various forms of environmental injustices prevail. Originality/value: This paper identifies gaps in the third-generation of critical EJ research and proposes new research directions by combining other theories and qualitative methods.