Manganese exposure and sleep quality in iron and steel industry workers.

IF 1.7 4区 医学 Q3 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Somayeh Rahimimoghadam, Reza Pourbabaki, Fatemeh Khorashadizadeh, Arash Mohammadi, Mojtaba Emkani
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Abstract

Manganese (Mn) is an essential element crucial for the proper functioning of the human body. However, excessive exposure to manganese can lead to complications, particularly neurotoxicity. Among the health issues associated with exposure to heavy metals, one of the major concerns in the adverse effect on sleep quality. A total of 189 employees from a steel factory were divided into two groups: exposed (149 people) and non-exposed (40 people). Air samples were collected using the NIOSH 7300 method, and blood samples were obtained at the end of each shift. The samples underwent analysis by ICP-OES after preparation using the acid-thermal digestion method. To gather information on sleep quality, the Petersburg Sleep Questionnaire (PSQI) was used. The data collected in this study showed abnormal conditions, leading to the inclusion of medians alongside averages. The participants had an average age of 35 and an average work experience of 6 years. The exposed group had a significantly higher median respiratory exposure to manganese (1.32 mg/m3) compared with the non-exposed group (0.20 mg/m3). The average sleep quality score in the exposed group was significantly worse (score of 7) compared with the non-exposed group (score of 4). In addition, there was a significant relationship between the quality of sleep and the level of manganese in the air, so that the quality of sleep decreases with the increase in the level of manganese in the air (p-value = .005). However, no significant relationship was observed between blood manganese level and air manganese level in the exposed group (p-value = .06).

钢铁工业工人的锰暴露与睡眠质量
锰(Mn)是人体正常运作的重要元素。然而,过量接触锰会导致并发症,特别是神经毒性。在与重金属接触有关的健康问题中,对睡眠质量的不利影响是一个主要问题。某钢铁厂189名员工被分为两组:暴露组(149人)和未暴露组(40人)。采用NIOSH 7300法采集空气样本,并在每班结束时采集血液样本。样品制备后采用酸热消解法进行ICP-OES分析。采用彼得堡睡眠问卷(PSQI)收集睡眠质量信息。本研究收集的数据显示异常情况,导致中位数与平均值一起包含。参与者的平均年龄为35岁,平均工作经验为6年。与未暴露组(0.20 mg/m3)相比,暴露组对锰的呼吸暴露中值(1.32 mg/m3)显著较高。暴露组的平均睡眠质量得分(7分)明显低于未暴露组(4分)。此外,睡眠质量与空气中锰含量之间存在显著关系,睡眠质量随着空气中锰含量的增加而降低(p值= 0.005)。暴露组血锰水平与空气锰水平无显著相关(p值= 0.06)。
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来源期刊
CiteScore
3.50
自引率
5.30%
发文量
72
审稿时长
4 months
期刊介绍: Toxicology & Industrial Health is a journal dedicated to reporting results of basic and applied toxicological research with direct application to industrial/occupational health. Such research includes the fields of genetic and cellular toxicology and risk assessment associated with hazardous wastes and groundwater.
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