HYGIENIC ASSESSMENT OF THE PARTICULAR MATER CONTENT IN THE AIR OF ZAPORIZHZHIA CITY

Abstract

Relevance. The greatest threat to human health is provided by the suspended particular mater with an aerodynamic diameter of 10 μm or less. Since they can lead to an increase of frequency of respiratory and cardiovascular diseases and contribute to an increase in mortality from these diseases. Objective. The research was aimed to carrying out a hygienic assessment of the particular mater content of the PM4 and PM10 fraction in the atmospheric air and in the air of the working area of the metallurgical enterprises. Materials and methods. It was performed the 4000 studies of PM4 and PM10 concentrations in the atmospheric air and 1838 - at workplaces. The study was carried out using a piezo-balanced measuring instrument for mass concentration of respirable dust - KANOMAX 3521. Results. Monitoring of atmospheric air showed that PM4 and PM10 are constant components of atmospheric air in the city of Zaporizhzhya. It was found that the maximum one-time concentrations of PM10 in the ambient air exceeded permissible concentration 20-minute mean only in sporadic cases, with the multiplicity exceeding 1.1-1.2 times. But daily average concentrations of these substances systematically exceeded recommended levels in 1.5 times. It was established that in the agglomeration, in the blast furnace guild and in the open-hearth guild departments the PM10 and PM4 content in the air of the working area was 21.2 and 16.0 times, 31.8 and 24.4 times and 15.5 and 13.2 times more than at workers of factory management, respectively. Conclusion. Organization of constant continuous monitoring of PM content in the air is a prerequisite for a correct assessment of their impact on the health of the population and workers.

Keywords

• particular mater, pm4, pm10, atmospheric air, working air, nanoparticles