Effect of Sodium Benzoate on Change of Urinary Hippuric Acid and Methyl Hippuric Acid among Workers Coexposed to Toluene and Xylene

Correlation between occupational exposure levels to toluene and urinary hippuric acid (HA) concentrations were studied for 124 workers at 54 work places. The highest indoor toluene concentration measured at printing process was 81.116 ppm, and their geometric average concentration was as high as 12.304 ppm. The geometric average concentration of hippuric acid in urine samples from workers who are exposed to toluene was 0.714 g/g creatinine. This is almost five times higher than the average HA concentration from non-exposure workers. Printing workers showed the average HA concentration of 1.145 g/g creatinine from their urine samples. It is the highest concentration among the workers exposed to toluene. The correlation coefficient between Research Paper

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Correlation of Urinary Hippuric Acid Concentration according to Occupational Exposure Level of Toluene and Worker's Characteristics

Lee

Shin²,

Hong³

et al. 2015

Journal of Environmental Impact Assessment

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Effect of Sodium Benzoate on Change of Urinary Hippuric Acid and Methyl Hippuric Acid among Workers Coexposed to Toluene and Xylene

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Correlation of Urinary Hippuric Acid Concentration according to Occupational Exposure Level of Toluene and Worker's Characteristics

Correlation of Urinary Hippuric Acid Concentration according to Occupational Exposure Level of Toluene and Worker's Characteristics

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