资料中多次报导,锰可使实验动物的血压下降。为此在人群中进行了调查。在南斯拉夫的一市镇中,选择了在某铁合金厂工作的工人,以不接触锰的辗铝厂工人作为对照。全为20～59岁之间的男工。第一组为生产锰合金的工人,接触锰浓度最高;第二组为同一工厂中生产电极的工人,接触较低浓度的锰;第三组辗铝工,不接触锰。 Data repeatedly reported that manganese can make the blood pressure of experimental animals decreased. To this end in the crowd conducted a survey. Among Yugoslavia’s towns, workers who chose to work at a ferroalloy plant were selected as contrasted with those who did not come in contact with manganese. All male workers between 20 and 59 years old. The first group consisted of workers producing manganese alloys with the highest contact manganese concentration. The second group consisted of workers producing electrodes in the same plant with lower concentrations of manganese. The third group did not touch manganese.