The setting of research can have an impact on ethical issues. Maybe one of the more dramatic examples would be conducting the same research project in a conflict setting versus a non-conflict setting. Similarly, conducting research after conflict has ended may impact ethical issues if a lot of mistrust persists. For different reasons, conducting a project in an urban setting may raise different ethical issues compared to a rural setting. Therefore, one way to explore the ethical issues in your research could be to start with its setting.