The Journal of Occupational Health (JOH) is the official English language open access journal of the Japan Society for Occupational Health with the aim of publishing original contributions relevant to occupational health. The scope of the journal is broad, covering toxicology, ergonomics, psychosocial factors and other relevant health issues of workers, with special emphasis on the current developments in occupational health. The JOH also accepts various methodologies that are relevant to investigation of occupational health risk factors and exposures, such as large-scale epidemiological studies, human studies employing biological techniques and fundamental experiments on animals, and also welcomes submissions concerning occupational health practices and related issues. The JOH publishes original articles, review articles, brief reports, case studies, field studies, opinions or recommendations, and letters to the editor.