His research interests have ranged widely from occupational to environmental ill health including respiratory and cardiovascular disease, stress and back pain, and audit and quality in the delivery of occupational health services. He has particular research interests in the incidence of occupational disease and work related ill health, in air pollution epdiemiology and in methods of predicting new hazards - with a view to appropriate preventive measures. He has a special interest in education in occupational medicine especially utilising the internet and other innovative approaches. His book 'Practical Occupational Medicine' is now in its second edition.