Hazardous work

A job which endangers the safety and health of workers.

"The oppressive child labor provision of the Fair Labor Standards Act prohibits employment of 16-18 year olds in occupations the secretary of labor finds hazardous to their health and well-being."
(Roberts, H., Roberts' Dictionary of industrial relations, 3rd ed., Washington, D.C., Bureau of National Affairs, 1994, p. 302)