Accumulation of fibers in the eyes of workers handling man-made mineral fiber products.
研究开发了一种简单方法,通过分析眼部分泌物来评估工人眼中非可吸入人造矿物纤维的积累,发现纤维数量与总粉尘暴露剂量高度相关。
The external eye can be considered a passive dust sampler. Foreign material deposited in the conjunctival cul-de-sac becomes enclosed by mucous fibrils. The fibrils adhere to the conjunctival mucous thread. Hence, by removing the mucus, one can study, eg, man-made mineral fibers deposited in the eye. In this study a simple method for this purpose has been developed, and the sampling characteristics of the eye for nonrespirable fibers is described. The numbers of nonrespirable fibers accumulated in the eyes correlated with the total dust exposure dose (correlation coefficient r = 0.92) and with the nonrespirable fiber exposure dose (r = 0.82). There was no correlation between the airborne fiber concentration and the number of fibers in the mucous thread alone.