Abstract

The aim of this study was assessment of link between number of cardiovascular incidents among urban population and environmental conditions (concentration of air pollutants and the values of air temperature). The analysis of the primary disease incidents, number of hospitalizations and deaths from cardiovascular diseases, as well as levels of air pollutants (mg/m3 ) and the air temperature (in °C) in Novokuznetsk, Kemerovo region for 2007–2012 was conducted. Cardiovascular disease data were adjusted for age (60 years and above 60 years). We analyzed the monthly average daily values of health and environment indicators. We used next statistical methods in our study: Mann-Whitney test, Kruskall-Wallis test and multiple regression analysis. Indicators of morbidity, hospitalization, and mortality from cardiovascular disease in all age groups, except for hospitalization over the age of 60 years shows trends towards decline. Levels of air pollutants are characterized by multi-directional trend. Air pollutants that most frequently exceeded the maximum allowable concentration in Novokuznetsk in 2007–2012 were: Particulate Matter (6,7 % of samples), hydrogen fluoride (6,6 %), formaldehyde (3,8 %), phenol (2,5 %), carbon black (2,3 %), nitrogen dioxide (1,1 %). Regression analysis showed that rates of cardiovascular disease among Novokuznetsk population in 16–57 % of cases are explained by environmental conditions. The number of registered cases, hospitalizations and deaths from diseases of the cardiovascular system is connected directly with PM, hydrogen fluoride, formaldehyde levels and revesely with the air temperature. The contribution of PM and temperature to number of cardiovascular disease incidents is higher among elderly, compared with persons up to 60 years. Thus, it is shown the combined influence of pollution levels and air temperature on the cardiovascular pathology of Novokuznetsk population.

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