Background. To study features of cereal grasses pollen collected in region were the enterprise that is in charge of destruction of the chemical weapons is placed - Gorniy, Saratov region. Materials and methods. Object of the research was pollen of cereal grasses collected in regions, differed by the ecological characteristics: object for destruction of chemical weapon of Gorniy of the Saratov region (investigated region), Privolzhsky area of the Ivanovo area (ecologically favorable region) and near to а motorway, Istrinsky area of Moscow Region (ecologically unfavorable region). Definition of the maintenance of heavy metals in pollen of grasses was carried out by the method of invertion voltamperometry, by percentage of sprouted pollen grains and the morphological characteristics of pollen grains by microscopy. Results. In samples of pollen collected within object for destruction of the chemical weapon of Gorniy, the maintenance of lead, mercury, zinc and cadmium, in comparison with non-polluting area, and with average values across the Russian Federation, thus lead almost ten times above, in comparison with average values of the maintenance in plants across the Russian Federation is authentically increased. The morphological changes of pollen more expressed in ecologically adverse region are revealed: the quantity of abortive pollen grains near to а motorway was above more than ten times, and, within the enterprise for the object for destruction of the chemical weapon of Gorniy, almost in 3 times, in comparison with non-polluting region. It is established that along with heavy metals (lead and zinc) which are а part of the list of the harmful substances containing in emissions in atmosphere of the enterprise for the object for destruction of the chemical weapon of Gorniy, the increasing of mercury and cadmium levels which are absent in а production cycle is revealed and can t be connected with enterprise functioning. Possibly other sources of pollution render.on the mercury and cadmium maintenance . Conclusion. Thus, in experiments it has been shown that pollen of plants possesses considerable sorbtion capacity for the heavy render metals which are а part of harmful production factors which change bioindicator properties of plant pollen and could form hypersensitivity.