[Effects of occupational noise exposure on norepinephrine in peripheral blood and cardiovascular system].

Objective: To study the effects of noise on bioactivity of norepinephrine (NE) and cardiovascular system.

Methods: A total of 130 workers exposed to the occupational noise in one enterprise were selected as noise exposure group, and 134 workers not exposed to the occupational noise and other poisons served as control group. Fasting venous blood was drawn to determine the content of NE in peripheral blood with ELISA.