Monitoring kwaliteit bouwstoffen 2006 - Een vergelijking met de monitoringdata 2003/2004 en 2005

Rainwater will leach substances, such as metal ions, from building materials into the environment. The Dutch Building Materials Decree, provided in the case of stony building materials, standards for such immissions to soil and surface water. In the transition to a new system of standards, that has been incorporated in 2007 in the Dutch Soil Quality Decree, a number of standards in the Building Materials Decree has been liberalized. To establish whether this liberalization would evoke in a diminishing of the environmental quality of the building materials, leaching data have been monitiored, at request of the Ministry of Housing, Spatial Planning and and the Environment, before and after the mentioned liberalization. A statistical analysis of the leaching data revealed that any loss in environmental quality of the building materials involved, could not be assessed, neither in 2005, nor in 2006