METHODS FOR TESTING THE BEHAVIOR OF ACTIV E INGREDIENTS OF WOOD PRESERVATIVES IN SOILS - POSSIBILITIES AND LIMITATIONS

In the past, investigations concerning the environmental behaviour of wood preservatives were made to an increasing extent but no uniform me thods of test exist up to now. The adsorption-desorption-or migration behaviour of active ingredients of wood preservatives in soils can be investigated both in experiments on a practical scale and on a laborat ory scale. Both investigation results are only generally valid to a li mited extent, due to the variability of the substance system wood pres ervative/soil. Laboratory tests, however, are more suitable for the pu rpose of ecotoxicological assessments as new generations of wood prese rvatives can be incorporated in the observations. As a main point the possibilities of batch and column tests are discussed in the article.