A new working group is being formed to develop guideline values for ambient odour assessment using the Spanish Standard UNE 77270 "Collaborative odour mapping through citizen science". The group will bring together representatives from public authorities, consultancies, research, community groups and industrial plants whose activities may generate odour nuisance.
The group will meet for the first time on 13 January 2027 at 15:30 CET (Spanish time). Its work aims to help establish a shared approach for projects using UNE 77270, drawing on dose–effect studies where possible and, where these are unavailable, seeking consensus among participants. UNE 77270 is not the only standard in this field. Initiatives to standardise citizen science for odour assessment are already under way in Italy and Chile. Read on to learn why the initiative is being launched and how to take part.

