Sanitary-and-hygienic aspects of personnel chemical safety in the course of liquidation of intercontinental ballistic rockets of land basing with fuel pair 1,1- dimethylhydrazin and nitrogen tetraoxide
Semyonova О.N., Voronin N.F.
The topicality of personnel chemical safety is shown in this article for neutralization and dismantlement of land basing rockets with the residual content of 1,1-dimethylhydrazin and nitrogen tetraoxide. Results of sanitary-and-hygienic monitoring of working conditions in the Center of liquidation of rockets for 12-summer period - before reconstruction and after are presented and allow us to estimate the hygienic importance of technological stages of neutralization and dismantlement, to reveal the most dangerous operations during which workers are exposed to the combined complex of highly toxic substances. Judging by the degree of a deviation from hygienic specifications of air pollution levels of a working zone by rocket fuel components and metal oxides aerosols the object personnel has harmful working conditions - class 3.2-3.4. The efficiency evaluation of the optimization measures of working conditions was conducted. Statistically significant decrease in frequency of detection of fuel components was noted as well as of excess of their hygienic regulations, levels of pollution by them of working zone air, building designs surfaces, the equipment, means of individual protection and workers skin in the course of rockets neutralization, and also decrease in concentration of some metals oxides in the working zone air during rockets dismantlement. It is shown that owing to liquidation technology features, insufficient sanitary-engineering maintenance of the work conducted and absence of effective surfaces neutralization ways, the risk of the combined and complex exposure of harmful and dangerous chemical factors on health of workers remains, during both neutralization of rockets and their dismantlement.
the rocket, neutralization, dismantlement, fuel components, aerosols of metals, working conditions, safety