Experimental verification of published data on the Deposition efficiency of charged particles in the airways
Experimental verification of published data on the Deposition efficiency of charged particles in the airways
Overview
The expansion of power grids is a critical component of Germany’s transition to renewable energy, requiring the construction and modernization of over 7,500 kilometers of transmission lines. These include major ultra-high-voltage direct current connections designed to transport wind-generated electricity from the north to south and west. A potential side effect of these infrastructure developments is the generation of strong electric fields around high-voltage power lines, which can lead to ionization of air molecules and increased charging of airborne particles. Charged aerosols may deposit more efficiently in the human respiratory tract, potentially increasing the health burden associated with inhaled particulate matter.
The objective of this laboratory-based study is to systematically investigate how different charge states affect the deposition efficiency of size-segregated aerosol particles (in wide size range) in the respiratory system under controlled conditions. By precisely controlling particle size and charge, we aim to elucidate the fundamental physical processes driving particle behavior in various regions of the airways, from the trachea to the alveoli.
- To experimentally verify and expand upon previous findings on respiratory deposition of charged aerosol particles
- To incorporate a broad range of respiratory tract models and physical parameters to reflect varying anatomical and environmental conditions
- To quantify uncertainties in the measurement and modeling of particle deposition efficiency in the airways
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