Employees, employers and the government have all become very aware of the effects on health of the work environment. As a result, this subject area is rapidly developing with recent changes in legislation, sampling and measurement methods, as well as a new emphasis on the psychological impact of work, and the importance of an appropriate work-life balance. The purpose of this book is to provide a clear and concise account of the principles of occupational hygiene and, as such, it is suitable for students studying for degree courses in this subject and for the MFOM. It is also suitable for occupational physicians and nurses, to safety representatives and to trade unionists. This edition sees the introduction of nine new chapters covering recently emerged topics such as work/life balance, work organisation and pyschological issues.