The research is carried out potential health assessment of benzene homologues exposure in correction fluids to primary and secondary students. 10 brands of correction fluids including two hundreds representative and typical samples were collected in Hebei province of China for detecting contents of toluene and xylene (3 isomers). And then, it was established risk assessment model on the basis of the contents of benzene homologues and physiological characteristic of primary and secondary students. The results is indicated that it was checked out xylene isomers residual solvents from 3 brands of samples, the average detection rate is 30%, and the target hazard quotients (THQ) is greater than 1. Because correction fluids was caused exposure health risk by respiration and ingestion, it suggested that relevant departments was needed to formulate and revise the national compulsory standards for defining limited values of toluene and xylene in correction fluids. Correction fluids was one of the most commonly used stationery by primary and secondary students, if there were some improper behaviors in use, it was increased the potential health risk as students' behavior was not completely controllable. At present, there were 3 kinds of solvents in correction fluids production process-trichloroethane, hexahydrotoluene and hexamethylene, but a few illegal businessmen use benzene homologues for costs reduction which had better dissolving property [1]. And these correction fluids producers were tend to use toluene and xylene instead of benzene, because there was strict limited for content of benzene in China national and industry standards such as GB 21027-2007 [2] , QB/T 2655 [3] and QB/T 4154 [4] , etc. The organic solvents vaporization in correction fluids was caused eye, mucosa and skin stimulation, and even worse, it would cause organ damage. The study was detected contents of benzene homologues in correction fluids samples by Gas chromatography (GC), and carried out exposure risk assessment to benefit effective supervision by providing scientific basis.

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