This approach is consistent with the objective that exposure to compounds where induction of cancer through direct interaction with genetic material cannot be ruled out be reduced wherever possible and obviates the need to establish an arbitrary "de minimis" level of risk for the determination of "toxic" under CEPA 1999. ###>En conséquence, l'oxyde d'éthylène est considéré comme « toxique » au sens de l'alinéa 64c) de la LCPE 1999.