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.

译文

拟除虫菊酯类杀虫剂已用于棉花,羊毛和纺织品的生产。为了检查纺织工人是否接触拟除虫菊酯杀虫剂,我们在中国东部的两家纺织厂招募了50名纺织工人。收集他们的尿液样品以测定拟除虫菊酯代谢物:2,2-二氯乙烯基-2,2-二甲基环丙烷-1-羧酸(顺式Cl2CA和反式Cl2CA)和3-苯氧基苯甲酸的顺式和反式异构体( 3-PBA)。我们的结果表明,纺织工人暴露于高含量的拟除虫菊酯类杀虫剂。顺式-Cl2CA和3-PBA为主要代谢产物,浓度为0.17-261μg/ L,而反式-Cl2CA的浓度范围为0.26-11μg/ L。三种代谢物的含量按降序排列:顺式-Cl2CA,3-PBA和反式-Cl2CA。代谢物的水平与纺织工人的年龄和工作职责相关。在纺织品生产中,缝纫工人,切割工人,机器操作员,整理人员和老年工人更有可能接触拟除虫菊酯类杀虫剂。反式-顺式-Cl2CA比值可能表明纺织工人的接触是通过皮肤吸收和吸入。

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