Demetska Oleksandra, SI “Institute For Occupational Health of the National Academy of Medical Sciences of Ukraine” (75, Saksahansky Str., 01033 Kyiv, Ukraine)

Andrusyshyna Irina, SI “Institute For Occupational Health of the National Academy of Medical Sciences of Ukraine” (75, Saksahansky Str., 01033 Kyiv, Ukraine)

Tkаchenko Tetiana, SI “Institute For Occupational Health of the National Academy of Medical Sciences of Ukraine” (75, Saksahansky Str., 01033 Kyiv, Ukraine)

Lukianenko Anna, Paton Electric Welding Institute of NAS of Ukraine (11 Bozhenko Str., 03680 Kiev, Ukraine)

Polukarov Yurii, I. Sikorsky National Technical University of Ukraine «Kyiv Polytechnic Institute» (37 Pobeda Av., 03056 Kyiv, Ukraine)

Language: ukrainian


Urgency of the research. Welding aerosols as occupational hazard have been studied for a long time. But up to now there is no clearness in the issues of dependence of their biological aggressiveness on main physical-chemical properties.

Target setting. There are no data about specificities of biological effects of nanosize fractions of the welding aerosols as well as their quantitative distribution and dynamics in the air of working zone.

Actual scientific researches and issues analysis. Western researchers have studied deposition of the nanosize fractions of welding aerosol (SCWA) solid component in the welder’s respiratory tract by using of individual samplers.

Uninvestigatigated parts of general matters defining. Approaches that today are specific to studies of nanomaterials produced by nanotechnologies do not use in investigations of the nanosize fractions of SCWA.

The research objective. To study nanosize fractions that emit during welding operations using coated electrodes (test and commercial) with reduced chromium (VI) content with the aim to assess emission of nanoparticles in the air of working zone.

The statement of basic materials. An emission of nanoparticles to the air of working zone during welding operations with superalloyed classifications of test electrodes with rutile coating (five classifications) and various types of binding agent with reduced chromium (VI) content as well as commercial electrode Cristal with rutile coating were studied in the welding-inoculating complex of the SI “Institute For Occupational Health of the NAMS of Ukraine”. Also content of nanosize metals in the air samples collected during welding using the test electrodes was analysed.

Conclusions. Test electrodes during welding shown reduced emission of nanosize metals, including chromium, and that corresponds to reduction of this element content in their composition.

Key words:

nanoscale fraction, welding aerosols, welding electrodes, a working zone air, chromium (VI)


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