This section of the paper briefly introduces our three alternative processes of biodiesel production (Subsection 3.1) and discusses how to assess social effects in LCA (Subsections 3.2-3.4) by applying the findings of the literature reviewed in Section 2 to the case of biodiesel production at the three levels. For each level, different kinds of affected actors are involved. Moreover, each entity is likely to require the assessment of both social impacts and performances, as described in the introductory section above. Therefore, in Section 3 we focus on the assessment of social impacts in line with Vanclay, and more specifically on impacts related to health or well-being, via quantitative LCA methods. For each level,
we suggest the main needs in relation to the assessment of health or well-being impacts, and then describe the LCA methods (if any) available for responding to the need.