translate English to French: In other words, the assessment of health risks associated with human exposure to mixtures of disinfection by-products in drinking water is performed without the consideration of the possible interactions among these substances.
Pour évaluer les risques que courent les personnes exposées à ces substances chimiques dans l'eau potable, on tient compte de la concentration individuelle de chacune de ces substances chimiques, mais non des interactions possibles entre elles.