Institut für Pflanzenschutz in Ackerbau und Grünland
Chemical green growth remover against algae and lichens, which are part of the biocidal products belong, are open to the environment and partly large-scale, for example on roofs, Facades or sidewalks are used and can have negative effects on the environment have. In particular, there is a risk of these biocidal applications run-off. For example, it can be assumed that through large-scale Cleaning paths, squares and roofs with green growth removers that are herbicides Contain active ingredients, excess amounts freely into the surrounding Environmental compartments or, if connected to the sewage system, to the sewage treatment plant can flow off. In addition, these products are often applied by spray deployed and it is to be expected that the spray will also spread into adjacent areas can distribute compartments. Also, the active ingredients in the period after application can be washed out by precipitation. Affected by this are many Cut down adjacent plants, the soil compartment and adjacent ones, if any surface waters. Entry into the sewage system is also possible. From big Application quantities can be assumed, since for this product group herbicidal products in Container sizes in the range of up to 50 liters are marketed.
German Environment Agency
