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作者就间断噪声对心血管系统及外周血象的影响进行了调查。接触组为某铝厂工人149人,专业工龄1年以上,无听力下降史。接触噪声强度为80～105dB,两次噪声间隔时间为8～80s不等,噪声持续时间2～41s不等,属间断噪声。对照组选择不接触
The authors investigated the effects of intermittent noise on the cardiovascular system and peripheral blood. Contact group for an aluminum factory workers 149 people, professional seniority of more than 1 year, no history of hearing loss. Contact noise intensity of 80 ~ 105dB, twice the noise interval of 8 ~ 80s range, the duration of noise ranging from 2 ~ 41s, is an intermittent noise. Control group choose not to touch