Pilawska H, Mikulski T, Rusin J, Soroka M, Wysocki K
Med Pr. 1977;28(5):441-7.
Yearly measurements of external noise (Noise--Pollution--Level) in the shipyard in Stettin, indicated noise levels above 85 dBA, expressed in LqM. On the ground of documentation of periodic medical examinations of the staff, one compared the rate of occurrence of disturbances in health state, such as: hearing impairment, gastric and duodenal peptic ulcer, hypertension and psychic disturbances in two groups of employees: "A"--exposed during work to noise 85 dBA and "B"--employed at the area of LqM smaller by 20 dBA. Statistically significant differences in the rates of occurrence of disturbances in the health state were found, to the disadvantage of those exposed to noise effect. In these groups also the rate of sickness absenteeism was disadvantageous: in the last 14 years its average values for the shipyard surpassed the average rate for Stettin district and the whole country.
对什切青造船厂外部噪声（噪声污染水平）进行的年度测量表明，以LqM表示，噪声水平超过85分贝。根据工作人员定期体检的记录，比较了两组员工健康状况紊乱的发生率，如：听力损伤、胃和十二指肠消化性溃疡、高血压和精神紊乱：“A组”——工作中暴露于85分贝噪声环境，“B组”——工作区域LqM比“A组”小20分贝。结果发现，健康状况紊乱发生率存在统计学上的显著差异，对受噪声影响的人员不利。在这些组中，病假缺勤率也很不利：在过去14年里，造船厂的平均病假缺勤率超过了什切青地区和全国的平均水平。
