Hans Kromhout is an occupational hygiene and epidemiology specialist, based at the Institute for Risk Assessment Sciences at Utrecht University. Kromhout’s work has covered the health effects of chemical and physical (electromagnetic fields) agents in the workplace and general environment. He has been the (co-)PI of large international studies in among others the asphalt industry, rubber manufacturing industry, industrial minerals industry, health sector and agriculture as well as community-based studies on cancer, respiratory diseases, neurodegenerative diseases, and reproductive health effects. Recent projects concerned occupational exposure to chromium-6 and ultrafine particles in the defense and transport. In one of his current projects, Kromhout focuses on occupational exposures to pesticides and the risk of prostate and breast cancer.