OBJECTIVE: To trace the auditory thresholds and according to analyze the results of the auditory profile age and time of service of participant petrochemical workers of the Auditive Preservation Program (PPA). MATERIAL AND METHOD: it was used as criterion for analysis, the area of performance in accordance with the nature of the activities carried through for the workers of the Unit of Production and Industrial Maintenance, then, had been evaluated 302 citizens. The audiometric results had been collected during the periodic examination. For analysis of the audiometry, was adopted according to attached classification II of the NR7: inside of the acceptable limits (NL), suggestive of induced hearing loss for noise (PAIR) and not-occupational hearing loss (CLOTH). RESULTS: the prevalence of hearing loss was 15%, what it means namely that 42 of the 302 evaluated workers present such alteration: hearing inside of the acceptable limits (85%); suggestive curves of induced hearing loss for noise (2%); not-occupational hearing loss (13%). The average of joined age was 35 years (the 18 57 years). How much to the work time, the joined average was 9 years, being that (64.6%) they work in a period of up to 5 years in the company; (9.6%) between 6 and 10 years; (13.3%) between 11 and 15 years; (9.6%) between 16 and 20 years; (2.6%) between 21 and 25 years and only 0.3% it works in the company in a superior period the 26 years. CONCLUSION: just 2% of these workers are carrying of compatible audiometric curves with PAIR, being below of the results found in literature regarding the auditory profile of petrochemical workers.