Open AccessChanges in concentrations of nanoparticles in working air under production environment over time
Author(s) -
Н.С. Леоненко,
O.V. Demetska,
O.B. Leonenko
Publication year - 2019
Publication title -
ukraïnsʹkij žurnal sučasnih problem toksikologìï/ukraïnsʹkij žurnal sučasnih problem toksikologìï
Language(s) - English
Resource type - Journals
eISSN - 2663-9165
pISSN - 2663-4570
DOI - 10.33273/2663-4570-2019-85-1-53-61
Subject(s) - production (economics) , welding , nanoparticle , environmental science , working environment , working time , materials science , process engineering , metallurgy , nanotechnology , mechanical engineering , engineering , work (physics) , economics , macroeconomics
The article presents the peculiarities of changes of concentrations of nanoparticles in the working air during welding operations over time, which are characterized in most cases by a sharp increase in their emission during the first minutes after welding and reducing with ambiguous fluctuations within 30 minutes and over. Also, data on the formation of nanoparticles in various production processes associated with the production of nanoproducts, which concentrations may exceed the exposure levels recommended in the EU countries, which requires both the improvement of technological processes and the development of safety measures when working with nanoscale objects, have been summarized.