The paper presents the results of the determination of indoor and outdoor air concentration levels in textile companies, to identify the areas with the highest concentration level, by using an online recording system such as the Laser Aerosol Spectrometer MINI LAS model 11-E. The next step was the collection of fibers, namely micro and nano plastic particles (MNPs) from the vicinity of the workplaces of polyester, polyamide, and polypropylene fibers processing units in the textile industry in Romania, to obtain a sufficient quantity for laboratory analysis to determine the size and shape of the particles as well as their chemical composition. Two types of pumps were used, differentiated by their operating parameters: TECORA SKYPOST with airflow of 38 l/min and GILAIRPLUS with airflow 2l/min. Filters made of different materials with different diameters and pore sizes were used. Several times more PM10 than PM1 (74.5 µg compared to 12.5 µg) was found. In all cases, both particles and fibers showed the same Raman fingerprint. The GS-MS analyses showed some contamination of the workspaces with particles other than the processed fibers. The most viable filters are Si filters with a pore size of 10 microns to 1 micron and the use of the selected collection and transport filter system.

This article is a chapter of the Book "Human systems engineering and design. Proceedings of the 5th International Conference on Human Systems Engineering and Design: Future trends and Applications (IHSED 2023), September 27-29, 2023, University of Dubrovnik, Croatia".