Biological monitoring for exposure assessment of volatile organic compounds by Korean firefighters at the fire site.

On the other hand, in the case of TZCA, a formaldehyde metabolite that was not statistically significant but showed an increasing trend, the firefighters would be exposed to formaldehyde during the fire fighting as the finding that the geometric mean concentration of TZCA in the urine of firefighters was 0.296mg/g creatinine immediately after extinguishing the fire was compared with the report that the mean concentrations of TZCA in the urine of the groups exposed to formaldehyde concentrations of 0.03 ppm and 0.18 ppm in the air were 0.097 mg/g creatinine, and 0.179 mg/g creatinine, respectively 15 ) .

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