Book excerpt: Monitoring for Health Hazards at Work has become an essential companion for students and professionals in occupational hygiene, offering a concise account of the dangers faced in a wide variety of work environments and giving practical, step-by-step guidance to gauge exposure. It includes: Coverage of most major health hazards: airborne dust, fibres, gases, vapours, noise, radiation, and biological agents Accounts of the latest equipment and techniques required to monitor such hazards Full guidance on how to undertake risk assessments Now thoroughly revised and restructured by an eminent new team of authors, the fourth edition brings this valuable handbook right up to date.