HYGIENIC SUBSTANTIATION OF DIMENSIONS OF SANITARY PROTECTIVE ZONES FOR MEDIUM SIZE PIG FARMS WITH A GLANCE TO CHARACTERISTICS OF DISTRIBUTION OF ODORIGENIC CHEMICAL AGENTS IN ATMOSPHERIC AIR

Abstract

The high frequency of complaints from the local population on the appearance of reflex and vegetative reactions associated with chemical pollution of the atmospheric air makes actual the effectiveness of establishing sanitary protection zones around the agro-industrial enterprises in accordance with existing regulatory documents. Thereby raises the need to search new approaches and methods for establishing the safety of such enterprises. Conducted field studies of pollutant concentrations in the atmospheric air at the border of the sanitary protection and residential areas from the industrial squares of pig farms with a 30,000 head capacity before and after the conversion of manure storage facilities, as well as further comparison of the obtained results indicate a change in the level of contamination of the ground atmosphere layer by emissions of certain chemical agents in dynamics. Whereas a repeated feature of the pollution increasing near the residential area, which adjoins the industrial squares, was noted. The exceeding of odor limen for certain polluting chemical agents is noted in the absence of excess of its state hygienic norm in the atmospheric air. The results obtained after the realization of engineering, constructive and environmental solutions and usage of limit values for odors made it possible to adjust the standard sizes of the sanitary protection zone for the production area of the pig farm at the southeastern direction.