Leaching of metal(loid)s from a construction material: Influence of the particle size, specific surface area and ionic strength

► The link between laboratory studies (<5 mm) and field scenarios (>45/125 mm) is presented. ► This link is strongly needed in administration and environment protection work (mass balances). ► Significant method artefacts causing an underestimation of the release of analytes. ► In water construction the impact of the ionic strength needs to be examined. ► Two methods are introduced to determine the geometric surface area in leaching tests.