This research aimed to study occupational risks in Mobile Prehospital Care (MPC) team professionals, emphasizing accidents with potentially contaminated material, and was developed in two phases. In the first, the goal was to identify accidental exposure to occupational risk factors in health team professionals working in MPC between 2000 and 2005. The second aimed to analyze accidental exposure to potentially contaminated biological material (pcbm) among health team professionals in MPC working for a private MPC company in the interior of São Paulo state, Brazil, which is active in the urban area and on highways. In the first phase, a descriptive documentary research was performed, using data obtained from 4992 Highway Care Records and notifications presented to Specialized Safety Engineering and Occupational Medicine Services-SEESMT. In the second phase, a descriptive-exploratory study was carried out, using semi-structured interviews with 50 professionals from the MPC team, involving firefighters, nurses, physicians, nursing technicians and ambulance drivers. The project was approved by the Research Ethics Committee. Data were analyzed using Epi Info software, version 3.4.3. In the first phase, 54 cases of exposure to occupational risks were detected, only six of which were notified to the SEESMT. Among occupational risks, accident risks stood out (64.8%), followed by nonergonomic situations (16.7%) and biological risks (9.2%). In the second phase, in a sample of 50 MPC team professionals, a majority (94.4%) was between 20 and 50 years old; male (84%); active in the area between 06 and 60 months (56%); vaccinated against HBV (92%). Among the interviewees, (56%) indicated accidental exposure to pcbm, totaling 41 accidents. Of all cases of accidental exposure to pcbm, (70.7%) affected integral skin; (17.1%) percutaneous tissue; (7.3%) mucous tissue; and 4.9% injured skin. The body areas most exposed to the pbcm were forearm (41.5%); arm (21.9%) and hand (21.9%). Most cases of accidental exposure to pbcm occurred while performing immobilization (39%), extraction