Shanghai Municipal Center for Disease Control and Prevention, 1380 Zhongshan West Road, Shanghai 200336, China.
Environ Int. 2013 Oct;60:137-44. doi: 10.1016/j.envint.2013.08.004. Epub 2013 Sep 17.
Pyrethroid insecticides have been applied in the production of cotton, wool and textile. In order to examine whether textile workers are exposed to pyrethroid insecticides, we recruited 50 textile workers in two textile plants in Eastern China. Their urine samples were collected for the measurement of pyrethroid metabolites: cis- and trans-isomers of 2,2-dichlorovinyl-2,2-dimethylcyclopropane-1-carboxylic acid (cis-Cl2CA and trans-Cl2CA) and 3-phenoxybenzoic acid (3-PBA). Our results showed that textile workers were exposed to high levels of pyrethroid insecticides. cis-Cl2CA and 3-PBA were dominant metabolites with concentrations of 0.17-261μg/L, while concentrations of trans-Cl2CA were in the range of 0.26-11μg/L. Levels of three metabolites were in a descending order: cis-Cl2CA, 3-PBA, and trans-Cl2CA. Levels of the metabolites were associated with ages and job responsibilities of textile workers. Sewing workers, cutting workers, machine operators, reorganizers, and older workers were more likely in contact with pyrethroid insecticides in the textile production. trans- to cis-Cl2CA ratios might indicate that exposure of textile workers was via dermal absorption and inhalation.
拟除虫菊酯杀虫剂已应用于棉花、羊毛和纺织品的生产中。为了研究纺织工人是否接触过拟除虫菊酯杀虫剂,我们在中国东部的两家纺织厂招募了 50 名纺织工人。采集他们的尿样,用于测量拟除虫菊酯代谢物:顺式和反式 2,2-二氯乙烯基-2,2-二甲基环丙烷-1-羧酸(cis-Cl2CA 和 trans-Cl2CA)和 3-苯氧基苯甲酸(3-PBA)。我们的结果表明,纺织工人接触到高水平的拟除虫菊酯杀虫剂。cis-Cl2CA 和 3-PBA 是主要代谢物,浓度范围为 0.17-261μg/L,而 trans-Cl2CA 的浓度范围为 0.26-11μg/L。三种代谢物的浓度顺序为 cis-Cl2CA、3-PBA 和 trans-Cl2CA。代谢物的浓度与纺织工人的年龄和工作职责有关。缝纫工、裁剪工、机器操作员、整理工和年龄较大的工人在纺织生产过程中更有可能接触到拟除虫菊酯杀虫剂。trans-Cl2CA 到 cis-Cl2CA 的比值可能表明纺织工人的暴露途径是皮肤吸收和吸入。