Wei-Chung Su presents MALDA at ISEE 2023 in Taiwan
Houston (Dec. 7, 2023) – Wei-Chung Su, PhD, CIH, the Interim Program Director of Industrial Hygiene for the Southwest Center for Occupational and Environmental Health (SWCOEH), presented at the 35th International Society for Environmental Epidemiology (ISEE 2023) in September in Taiwan. 
Dr. Su made three oral presentations on MALDA (Mobile Aerosol Lung Deposition Apparatus), an experimental tool for the efficient and systematic study of aerosol respiratory deposition.
Dr. Su presented MALDA’s implementation in three different settings:
- Urban ultrafine particle exposure in the Greater Houston Area
- Secondhand e-cigarette aerosol exposure
- Dental cleaning-related aerosol exposure
Dr. Su also delivered a speech at Kaohsiung Medical University, talking to medical doctors in internal medicine and pulmonary medicine about his research on health-related aerosol respiratory deposition and the development of MALDA.
MALDA contains two systems: a human airway system (including a set of 3D-printed realistic human airway replicas) and an aerosol measurement system (with two units of aerosol particle sizer). By installing the two systems on a lab trolley with a vacuum pump, MALDA becomes mobile and can conduct aerosol respiratory deposition experiments in real-life settings outside the laboratory. MALDA is used to study occupational and environmental health exposures, including welding fumes, 3D printing emissions, and e-cigarette aerosols.
The SWCOEH provides graduate-level training opportunities for occupational and environmental health professionals through our industrial hygiene, occupational and environmental medicine, occupational epidemiology, and Total Worker Health® programs.
The Southwest Center for Occupational and Environmental Health is part of the UTHealth Houston School of Public Health