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对同时接触铅烟与噪声的某钢铁厂82名男性炼铁炉前工进行听力测试，当噪声强度一样时，铅烟吸入加重了接噪工人的听力损伤，且随着体内铅负荷的增高，工人听阈位移更为明显。提示铅与噪声对工人听力损伤有协同作用。
A total of 82 male iron-making furnaces in the same iron and steel factory exposed to lead smoke and noise at the same time were subjected to audiometric tests. When the noise intensity was the same, inhalation of lead smoke aggravated the hearing impairment of noise-exposed workers. With the increase of lead load in the body, Workers hearing threshold displacement is more obvious. Prompt lead and noise have a synergistic effect on hearing impairment of workers.