HUMAN HEALTH RISK ASSESSMENT OF BOTTLED WATERS IN KHABAROVSK
This article is focused on the analyzing of integral Health Risk Assessment applications in safety analyses of bottled water. The significance of this problem is caused by necessity of bringing together different types of risks (for example, risks connected with chemical pollutants and organoleptic factors). Theoretical base of the research is built with Russian and International experience. The proposed methods of risk assessment are based on the risk calculation in dimensionless number (hazard quotient – HQ) and in probabilistic numbers in conversion to events per million (Risk Index – RI, risk of olfactory- reflectory impact factors, Integral Index of Water Risk). An aggregate of different types of risks is divided into 2 groups: factors connected with organoleptic perception (turbidity, color, and pH) and factors of potential carcinogenicity (concentrations of antimony, formaldehyde, diethylhexylphthalate). This classification was inspired by different levels of acceptable risk (10-1 and 10-5 respectively). Risk assessment is framed with the idea of degree calculation of deviation to unsafe values. There is a chronic daily intake (CDI) as a measure of optimal safety for factors of potential carcinogenicity. It is shown in the article that the usage of complex indicator «CDI» is more informative and life adequate than «Maximum permissible concentration». At the same time each position concerning factors connected with organoleptic perception has the only countable optimal degree. All the mathematical procedures of human health risk calculation are shown in this article. The main advantages of this article are complexity, validity and compactness.