The article deals with geoecological situation in Saratov in the first decade of the new century. Also in the article was estimated air pollution in the most dangerous pollutants, particularly affecting on cancer morbidity such as dust of different origin, formaldehyde, benzo (apirenom) phenol. Identification and localization of zones and areas with adverse environmental conditions is necessary for more rigorous, including screening observations on the development of the carcinogenic situation and correcting regional cancer program