f150954c__S__Bureau_of_Labor_Statistics__Job_Duties
[Occupation] Occupational Health and Safety Technicians [ENTRY-LEVEL EDUCATION] High school diploma or equivalent [2012 MEDIAN PAY] $47,440 [Job Duties] 
Occupational health and safety technicians collect data on the safety and health conditions of the workplace. Technicians work with occupational health and safety specialists in conducting tests and measuring hazards to help prevent harm to workers, property, the environment, and the general public.
Environmental Science and Protection Technicians : Occupational Outlook Handbook : U.S. Bureau of Labor Statistics