​Research released by Geological Survey Ireland today shows new understanding of the geochemistry of the subsoil beneath Dublin, known in the private sector as the Dublin Boulder Clay. The project, completed with industry data, demonstrates that the levels of metals observed in uncontaminated Dublin Boulder Clay are likely to be consistent with the rock types and other natural soils in the area. It recommends higher quality geochemical data should be collected for the Dublin Boulder Clay, in particular for mercury, molybdenum, antimony and selenium. The work informs the EPA in its guidance on waste acceptance criteria at authorised Soil Recovery Facilities and supports circular economy objectives in the Climate Action Plan. Download the database and report from the Geological Survey Ireland publications page.