This reviews the details of the changes over time and has further links. https://www.gov.scot/binaries/content/documents/govscot/publications/consultation-pape

This reviews the details of the changes over time and has further links. https://www.gov.scot/binaries/content/documents/govscot/publications/consultation-paper/2023/04/new-environmental-quality-standard-eqs-emamectin-benzoate-embz-consultation-implementation-timescales/documents/new-environmental-quality-standard-eqs-emamectin-benzoate-embz-consultation-implementation-timescales/new-environmental-quality-standard-eqs-emamectin-benzoate-embz-consultation-implementation-timescales/govscot%3Adocument/new-environmental-quality-standard-eqs-emamectin-benzoate-embz-consultation-implementation-timescales.pdf https://www.gov.scot/binaries/content/documents/govscot/publ... At either limit, the levels added to the environment from a single treatment of a farm will cause deposition higher than the limits. I have linked the SEPA regulations for aquaculture and a report for the modelling program (NewDEPOmod) used. On page 32 on the second link there are plots showing the observed and modelled concentrations, both of which are above the allowed limits. https://www.sepa.org.uk/regulations/water/aquaculture/ https://www.sepa.org.uk/regulations/water/aquaculture/ https://www.sams.ac.uk/t4-media/sams/pdf/publications/REFINING-SEA-BED-PROCESS-MODELS-FOR-AQUACULTURE-Final-Report-for-web.pdf https://www.sams.ac.uk/t4-media/sams/pdf/publications/REFINI...