Behavior of Aerosol Nanoparticles Released into Simulated Workplace Environment

摘要

Aerosol nanoparticles (NPs) released to workplace air will form larger agglomerates and bind to ambient aerosol particulates. The changing nature of NPs makes it difficult to standardize test methods, both for inhalation toxicological studies and for measurement of exposure levels at workplaces. Within the framework of the EU funded research project, NANOTRANSPORT (FP6), we have proposed model exposure scenarios based on analysis of real workplace situations. Experimental work has been carried out to simulate the scenarios in an exposure chamber. The agglomeration dynamic of primary Pt nanoparticles, as well as interactions between the primary NPs and background aerosols were investigated.