钱庆增, 曹向可, 沈福海, 王茜. 煤矿混合工累积接尘量和肺功能累计异常率的关系[J]. 环境与职业医学, 2015, 32(9): 863-866. DOI: 10.13213/j.cnki.jeom.2015.14662
引用本文: 钱庆增, 曹向可, 沈福海, 王茜. 煤矿混合工累积接尘量和肺功能累计异常率的关系[J]. 环境与职业医学, 2015, 32(9): 863-866. DOI: 10.13213/j.cnki.jeom.2015.14662
QIAN Qing-zeng , CAO Xiang-ke , SHEN Fu-haia , WANG Qian . Relationship of Cumulative Dust Dose and Cumulative Abnormal Rate of Pulmonary Function in Mixing Coal Mining Workers[J]. Journal of Environmental and Occupational Medicine, 2015, 32(9): 863-866. DOI: 10.13213/j.cnki.jeom.2015.14662
Citation: QIAN Qing-zeng , CAO Xiang-ke , SHEN Fu-haia , WANG Qian . Relationship of Cumulative Dust Dose and Cumulative Abnormal Rate of Pulmonary Function in Mixing Coal Mining Workers[J]. Journal of Environmental and Occupational Medicine, 2015, 32(9): 863-866. DOI: 10.13213/j.cnki.jeom.2015.14662

煤矿混合工累积接尘量和肺功能累计异常率的关系

Relationship of Cumulative Dust Dose and Cumulative Abnormal Rate of Pulmonary Function in Mixing Coal Mining Workers

  • 摘要: 目的 探讨煤矿混合工累积接尘量和肺功能累计异常率的关系。

    方法 选择唐山某煤矿混合工328名为观察组,非接尘工169名为对照组,均行基础资料调查(性别、出生日期、工作状况、作业环境、接尘种类、接尘史等)和肺通气功能检测。

    结果 观察组肺功能异常率为35.1%,高于对照组10.1%(P<0.05),同时肺功能指标(用力肺活量、第1秒用力呼气量、第1秒用力呼气量占用力肺活量百分率)均明显低于对照组(P<0.05)。随着工龄的增加,上述3项肺功能指标均显著降低(P<0.05)。随着观察组工人累积接尘量的增加,肺功能累计异常率也呈现出升高趋势:从100 mg/m3~组的0.33%增加到1 700 mg/m3~组的98.41%。累积接尘量在1 000~1 700 mg/m3内时,其肺功能累计异常率增长较快。累积接尘量与肺功能累计异常率存在明显的正相关性(r=0.759,P=0.000)。

    结论 煤矿混合工肺功能累计异常率随累积接尘量增加而逐渐增高。在1 000~1 700 mg/m3的累积接尘量区间内,累计异常率快速增长。

     

    Abstract: Objective To examine the relationship of cumulative dust dose and cumulative abnormal rate of pulmonary function in workers on mixing coal mining working face.

    Methods Mixing coal mining workers (n=328) were selected from a coal mine in Tangshan as observation group, and non-dust exposed workers (n=169) were selected as control group. A survey collecting basic information (such as name, gender, date of birth, working conditions, working environment, dust species, and dust exposure history) and a pulmonary ventilation function test were conducted among them.

    Results The abnormal rate of pulmonary function in the observation group (35.1%) was higher than that of the control group (10.1%) (P<0.05). Lung function indicators including forced vital capacity, forced expiratory volume in one second, and the percentage of forced vital capacity to forced expiratory volume in one second in the observation group were lower than those in the control group (P<0.05). With the increasing of service length, the lung function indicators decreased significantly (P<0.05). With the cumulative dust dose increasing, the cumulative abnormal rate of pulmonary function in the observation group increased from 0.33% in the 100 mg/m3-group to 98.41% in the 1 700 mg/m3-group. Steeper increases in the cumulative abnormal rate of pulmonary function were found in the cumulative dust exposure dose ranging from 1 000 mg/m3 to 1 700 mg/m3. Cumulative dust dose demonstrated a positive correlation with cumulative abnormal rate of pulmonary function (r=0.759, P=0.000).

    Conclusion The cumulative abnormal rate of pulmonary function increases with higher cumulative dust dose. Within the cumulative dust exposure range of 1 000 -1 700 mg/m3, the cumulative abnormal rate rapidly grows.

     

/

返回文章
返回