The Occupational Hygiene Society of Ireland (OHSI) was formed in 1986. Its membership comprises broad interest group including occupational hygienists, occupational physicians, scientists and occupational health and safety practitioners. The Society provides a consultative forum for the exchange of information and ideas for the control of occupational ill health. The Society is a member of the International Occupational Hygiene Association (IOHA) who's function is to promote and develop occupational hygiene through out the world, promote the exchange of occupational hygiene information, to encourage the development of occupational hygiene and ensure a high ethical standard in occupational hygiene. The IOHA has members in 23 countries worldwide.