conclusions according to the results of the present study, the prevalence of some infections with intestinal parasites is high in the hamadan city. considering that most of the parasites are nonpathogenic, pathogenic ones have been reduced generally in comparison to the previous reports. nevertheless, the existence of taenia species and h. nana could not be ignored. results among 228 samples, 8...

background & aims of the study: antibiotics utilize with the aim of improving human, animal and plant health; also, for treating infections caused by pathogenic bacteria. when these compounds introduce into ecosystems, could affect the microbial community and jeopardize human health. therefore, the aim of present study is to determination of the presence of six common utilized antibiotics (amox...

background: the incomplete burning of fuel in engine of vehicles, evaporation of petrol from gas stations, and also car carburetor cause unburned hydrocarbons to be emitted in ambient air of cities and gas station locations. from unburned hydrocarbons; monocyclic aromatic hydrocarbon influence to citizen's health and benzene is known as carcinogenic compounds. the objectives of this study are t...

background : road runoff is a linear diffuse source of pollution, with very specific pollutant characteristics and ability to discharge into the environment. heavy metal pollution in road runoff has caused widespread concern since the last century. therefore, the purpose of this study was to assess fe, pb, and cd concentrations in surface runoff from regions with high traffic intensity in the c...

background: giardia lamblia is the most common intestinal parasite in the most parts of iran, including hamadan. treatment of healthy cyst passers is a controversial challenge in view of public health features. the aim of this study was to determine the reinfection rate of g. lamblia after treatment during one year follow up. methods: in the endemic area for giardiasis, hamadan, the west of ira...