Cotton dust and endotoxin exposure levels in three Shanghai textile factories: A comparison of samplers
Cotton dust and endotoxin exposure levels in three Shanghai textile factories: A comparison of samplers
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DOI：
10.1080/15459620600793672
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发表时间：
2006-08-01
影响因子：
2
通讯作者：
Checkoway, Harvey
中科院分区：
文献类型：
--
作者：
Astrakianakis, George;Seixas, Noah;Checkoway, Harvey
利用对上海三家纺织厂的现场调查结果，对中国粉尘采样器（CDS）与标准美国采样器立式淘析器（VE）的性能进行了比较。使用 CDS 和 VE 在七个特定制造过程中收集并排样本，并使用改进的职业医学研究所 (IOM) 个人吸入采样器收集其他区域和个人样本。分析过滤器的质量和内毒素浓度。 CDS 收集的样品的几何平均值 (GM) 为 0.79 mg/m(3)（几何标准差 [GSD] 1.9），而 VE 测量的 GM 为 0.31 mg/m(3) (GSD 1.7)。 CDS 和 VE 样本的相关系数为 0.35。 CDS 是一种大容量总灰尘面积采样器，收集的灰尘比 VE 多 2 到 10 倍，VE 是一种尺寸选择方法，具体取决于制造工艺。在 A 工厂的纺丝过程中，VE 和 CDS 测得的浓度分别为 0.15 mg/m(3) 和 1.62 mg/m(3)。 IOM 采样器收集的棉尘浓度测量结果表明，个人暴露浓度（GM 1.84 mg/m(3)，GSD 1.6）明显高于固定位置区域样本（GM 0.68 mg/m(3)，GSD 1.9）。基于VE样品的内毒素浓度为366 EU/m(3)，在具体制造工艺图纸中发现最高水平(1871 EU/m(3))，在纺丝中最低(43.5 EU/m(3))。现场比较的结果用于将历史 CDS 数据转换为可比较的暴露量，并将回顾性暴露分配给上海女纺织工人肺癌病例队列研究中的受试者。
The results of a field survey at three Shanghai textile factories were used to compare the performance of the Chinese dust sampler (CDS) with the standard American sampler vertical elutriator (VE). Side-by-side samples using a CDS and a VE were collected in seven specific manufacturing processes, with additional area and personal samples collected with a modified Institute of Occupational Medicine (IOM) personal inhalable sampler. Filters were analyzed for mass and endotoxin concentration. The geometric mean (GM) of the samples collected by the CDS was 0.79 mg/m(3) (geometric standard deviation [GSD] 1.9) compared with a GM of 0.31 mg/m(3) (GSD 1.7) for the VE measurements. The correlation coefficient for the CDS and VE samples was 0.35. The CDS, a high-volume total dust area sampler collects 2 to 10 times more dust than the VE, a size-selective method, depending on the manufacturing process. In spinning at Factory A, the VE and CDS measured concentrations of 0.15 mg/m(3) and 1.62 mg/m(3), respectively. Cotton dust concentration measurements collected by the IOM sampler demonstrated that personal exposure concentrations were significantly higher (GM 1.84 mg/m(3), GSD 1.6) than fixed-position area samples (GM 0.68 mg/m(3), GSD 1.9). The endotoxin concentration based on the VE samples was 366 EU/m(3), with the highest levels found in the specific manufacturing process drawing (1871 EU/m(3)) and the lowest in spinning (43.5 EU/m(3)). The results of the field comparison were used to convert historic CDS data into comparable exposures and to assign retrospective exposures to subjects included in a case-cohort study of lung cancer among female textile workers in Shanghai.