He is program director for the Master of Public Health field in occupational hygiene. As an occupational hygienist and professional engineer for over 25 years, his teaching and research interests are in worker exposure assessment and control for disease prevention. Recently, Paul has been collaborating with Workplace Health Without Borders on projects in India. These include reducing silicosis incidence among Agate processors in Khambat, India and more recently, on dust and noise exposures for gemstone processors in Jaipur, India.