The newly proposed substances are the outcome of a review that considered the risks posed by some 2000 substances according to their levels in surface waters, and their hazardousness, production and use.
Loetelu täiendamise ettepaneku aluseks on analüüs, mille käigus hinnati ligikaudu 2000 ainega seonduvaid ohte vastavalt nende tasemele pinnavees, nende ohtlikkusele, tootmisele ja kasutamisele.