Abstract
In the article is considered an important problem of ecological danger – quantitative calculation of nonthreshold toxicants influence on the human as risks. The basic pollutants are vinyl chloride, arsenic and dioxins. The correspondent risks are calculated on the base of safety record definition. For complex approach of ecological danger determination is applied the additive model of risks calculation that is a good instrument for danger level definition. In addition, in this work is used the synergism occurrence that can have significant impact on the correspondent risks value. We considered different types of synergism, which influence the risks values of harmful impact of the chosen nonthreshold pollutants. This impact is represented through number values of synergism coefficients. It is considered the situation of both inconspicuous synergism and enough real. In these cases the meaning of risks differs from each other essentially. This way of the risks values calculation permits to estimate the danger level of some carcinogens impact on the human health adequately.
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