REACH and LCA-methodological approaches and challenges

This paper discusses issues associated with the research question: What are the similarities and differences between the REACH and life cycle assessment (LCA) approaches, and how can synergies between these two approaches be exploited to achieve environmental improvements in a holistic perspective? The Innochem project (Hanssen 2010) has been the vehicle for examining two different approaches for product improvement: REACH and LCA. Product LCAs and REACH assessments were performed on several products from each of the two main company participants, i.e. Jotun and HG. These companies are downstream users, according to the REACH definition: Jotun producing mixtures and HG manufacturing articles. Knowledge of the REACH and LCA aspects associated with these two types of products existed in the project team and was used in the project period (2006-2011) to compare the two approaches. This paper presents similarities and differences between REACH and LCA approaches as related to reducing impacts on the environment. As an illustrative example, the REACH registration dossier is compared to USEtox data for benzene. Combining aspects of LCA with REACH can give companies a competitive edge and benefit society. The greater availability of toxicity data that will result from REACH can strenghten LCA toxicity assessments and methods. The functional life cycle approach and potential synergies from LCA are important when implementing REACH in companies in order to avoid suboptimal solutions and exploit the potential for achieving innovative improvements. Many companies will use both approaches, which may lead to results pointing in the same direction, or contradictory results. Using both approaches and exploiting concurrence and synergies between them will ensure that decision makers are aware of potential conflicts during the product development process and can thus be able to seek solutions that will avoid these conflicts of interest.