Ecology & Safety, Volume 17, 2023

Abstract: The rising population of dogs poses a significant environmental issue in urban settings. Parks and green spaces, which are popular gathering spots and often have children's playgrounds, are frequently polluted by dog feces. These feces can contain zoonotic parasites, with the most hazardous and most common being the eggs of the helminths Toxocara canis, Ancylostomidae spp., Echinoccocus granulosus. Trichuris vulpis and Strongyloides stercoralis and oocysts of the protozoa Giardia intestinalis, Amoeba spp. and Cryptosporidium spp. The growth rate of these parasites depends on the microclimatic conditions prevalent during specific times of the year. Therefore, when studying this pollution and evaluating human infection risks, it's essential to consider bioclimatic conditions to ensure accurate sampling and interpretation. During our twenty-year study of contamination in Belgrade's parks, we used the Uvarovo bioclimatogram to pinpoint the best sampling times and evaluate our findings.