[Rationale for differentiated sanitary protection zones for battery recycling enterprises in modern conditions].

In the paper there is presented the rationale for differentiated sanitary protective zones in the present conditions both of the increase of volumes of production and introduction of various technological solutions on the example of battery recycling enterprise. It is established that the in acting regulations the classification of enterprises recycling of non-ferrous metals, fails to take into account such the hazard risks criteria of the enterprise, as volume of emissions of priority substances, the height of their arrival in the atmosphere, etc., and also does not take into account increased significantly in the current time processing volumes. The results of the performed research allowed to offer new positions in the classification of production of secondary lead from used batteries (I to IV class), depending on the volume of production (from 20 000 to 160 000 tons per year), the amount of emissions of lead (0.2 to 1, 6 tons per year) and release height (15 to 60 m).

[Local immunity and methods for its assessment upon exposure to ambient air-polluting biologicals].

The investigators studied the impact of biological air contamination by the dusts resulting from protein feedstuff manufacture and grain on local immunity of the mucosae in children and adults living in the areas that were differently distant from industrial objects, the sources of contamination, as well as in workers of the shops contaminated by dust containing various amounts of protein. The studies showed that the workers of a biochemical plant exhibited a considerable change in the majority of immunological parameters (lysozyme activity, heterophile antibody titers, salivary and skin bactericidity, salivary total and R-protein, and immunoglobulins A, M, G, and E). There was a significant decrease in salivary IgA activity. The immunological parameters of children and adults were further compared with their morbidity as the most important health index. It was found that with the production rates being steadily raised, the average annual morbidity increment was 1.3; children less than 14 years of age in whom the incidence of bronchial asthma and bronchitis with asthmatic components increased 5-fold were most susceptible.

[Evaluation of physical exposures of motor transport during hygienic examination of design materials to establish the size of a sanitary break].

The paper presents the results of assessing the conformity of building, reconstruction, and highway maintenance with the standards, by establishing the size of a sanitary break during examination of design materials in case of the Saint Petersburg ring road, the West high-speed diameter, E-18 Scandinavia, surface high-speed line passenger railway routes in Saint Petersburg, etc.