火力发电厂粉尘接触量与尘肺发病关系的研究  被引量:6

Relationship between Dust Exposure Dose and Incidence of Pneumoconiosis in A Thermal Power Plant

在线阅读下载全文

作  者:乔聚山[1] 乔燕颖 时松和[3] 谷桂珍[1] 程广超[1] 李奎荣[1] 

机构地区:[1]河南省职业病防治研究所 [2]郑州热电厂职工医院 [3]河南医科大学统计教研室

出  处:《中国工业医学杂志》1998年第1期8-10,共3页Chinese Journal of Industrial Medicine

基  金:河南省医学科学院科研基金资助

摘  要:为了研究火力发电厂粉尘与尘肺发病的剂量-反应关系,根据某火力发电厂接尘工人接尘时间、肺总通气量、粉尘浓度和游离二氧化硅含量,计算职工肺内石英负荷量,然后采用累积剂量患病率寿命表法研究尘肺患病率与粉尘的剂量-反应关系,推算该类粉尘的容许浓度。结果表明接尘剂量与尘肺患病率呈显著正相关关系,提示每人平均工作30a,使尘肺患病率低于5‰,接触煤粉者和接触灰粉者作业场所平均粉尘浓度分别应控制在10.00mg/m3和3.25mg/m3以下。In order to study the doseresponse relationship between dust and incidence of pneumoconiosis in a thermal power plant,the quartz burden in their lungs of the workers exposed to dust was calculated based on their length of exposure and total lung capacities,concentrations of dust and free silica in workplace air,and then the relationship between dose of dust and prevalence of pneumoconiosis and dust allowable concentration in workplace air was calculated by lifetable method with dosecumulative morbidity.Results indicated that dust exposure dose correlated significantly to prevalence of pneumoconiosis with a coefficient of correlation.It indicated that coal dust and fly ash concentrations in workplace air should be controlled below 100 mg/m3 and 325 mg/m3,respectively,to keep the prevalence of pneumoconiosis lower than five per thousand for those working there for thirty years in average..

关 键 词:火力发电厂 尘肺 寿命表 

分 类 号:R135.2[医药卫生—劳动卫生]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象