%0 Generic
%A Nativio, Arianna
%A Jovanovic, Oriana
%A Kapelan, Zoran 
%A van der Hoek, Jan Peter
%D 2024
%T Data underlying the publication: Risk of Rainfall Caused Leaching from Bio-Composite Material based Building Façades into the Aquatic Environment
%U 
%R 10.4121/c14ff7d7-f02b-47f5-93ba-8f889ea8c9ff.v1
%K Bio-composite materials
%K Façade building elements
%K Leaching tests
%K Environmental risk assessment
%K heavy metals
%X <p>The new bio-composite materials are used for different products such as façade building elements . Two new bio-composite materials were analysed. Each material was tested in its new and weathered forms, the latter being subject to cyclic UV irradiation and high humidity to simulate weather conditions. First, two rainfall intensities were selected using the Koninklijk Nederlands Meteorologisch Instituut (KNMI) database, followed by laboratory work including the preparation of synthetic rainwater and leaching tests to determine the potential release of specific chemical substances, such as heavy metals and resin compounds, under different rainfall contidions. The leaching concentrations obtained from these tests were then assessed for their potential impact on surface water quality. Using laboratory test outcomes as a basis, the risk assessment for potential leaching from façade elements into surface waters was conducted. Two scenarios of leaching were analysed, a single rain event of intensity 5 mm/h and duration of 1 hour, and a single rain event of intensity 15 mm/h and duration of 1 hour. In order to overcome the uncertainties caused by the limited input data available, a sensitivity analysis was carried out by first varying the leaching concentrations and then the rainfall intensity. The aim was to evaluate the changes in the PEC/PNEC ratio as a function of these two input parameters and to gain a better understanding of the leaching behaviour as a function of these two parameters. </p>
%I 4TU.ResearchData