The study was conducted to find out some changes on some physiological indicators of workers exposed to petroleum in Vietnam conditions. Research showed remain a small proportion of these locations do not have good working environment for workers, this Is one of the causes of the physiological manges on workers. Through research about some physiological Indices of workers, the results shows that the higher age group of women workers have higher pulse rate (p 0.05)
the older workers, the higher the blood pressure (p 0.05), rate of parasympathetic neurological disorders in women (19 percent) higher than men (7.3 percent) and sympathomimetic neurological disorders rate in women (1.3 percent) lower than men (5,3 percent) (p 0.05).