Workplace and occupational health: The first metal evaluation using nuclear and analytical techniques in the state of Minas Gerais - Brazil

The man and the environment are constantly exposed to contamination risks. Industrial activities have been the target of some studies because industrial processes are a constant source of contamination to the workmen. Belo Horizonte and its surrounding areas are an important industrial centre. The majority of patients who look for medical assistance because of metal contamination are working in a galvanizing industry. This investigation project was the first action in order to assess the elemental concentration levels in the galvanizing industry and alert for the need to assess the outcome of a long-term exposure. Scalp hair, toenails and urine samples were used as bioindicators in order to assess health risks evaluating the contamination levels among the workers. Besides biomonitors the industry environment was evaluated through analysis of airborne particulate matter. This work is related to an IAEA Coordinated Research Project whose goal is to make a survey of the exposure to metals related to occupational diseases. It has been conducted by CDTN/CNEN and governmental health departments. The elemental concentration results have pointed out a high exposure to pollutants at workplaces and a high elemental concentrations in biomonitors suggesting endogenous contamination. Medical recommendations were made aimed at minimising its hazardous effects on man's health. (author)