"Yrkeshygiene.no" aims to contribute to a better working life in Norway by collecting and sharing information about occupational hygiene. Relevant topics related to risk and risk analysis, statistics, sampling strategy, analysis of occupational hygiene measurements and the history of occupational hygiene in Norway will be covered. - all occupational diseases and injuries can be prevented - In such a perspective, the prevention of disease and injury becomes important. Occupational hygiene as a subject is an important part of this and is defined according to the International Occupational Hygiene Association (IOHA): "anticipate, recognize, evaluate and control health hazards in the work environment in order to protect workers' health and well-being and safeguard society in general" (IOHA).