Although there is currently no internationally agreed baseline for microplastics in surface water, as referenced in S6W-24509, all our marine litter data contributes to regional monitoring across the North East Atlantic, through OSPAR (the Oslo-Paris Convention), and would contribute to any baseline developed in the future.Further to the answers to questions S6W-01058 on 13 July 2021, S6W-23231 on 16 January 2024, S6W-23886 12 January 2024, S6W-23887 on 9 January 2024, S6W-24462 on 16 January 2024, and S6W-24509 on 23 January 2024, our microplastics monitoring programme began in the winter of 2013, and has continued to undertake annual surveys since that time.Data from this monitoring programme enabled the initial assessment for microplastics in surface water to be conducted.