Comparison of Benzene Exposure in Drivers and Petrol Stations Workers by Urinary trans,trans-Muconic Acid in West of Iran
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- BAHRAMI Abdul Rahman
- Department of Occupational Health, Faculty of Health, Hamadan University of Medical Science
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- JONEIDI JAFARI Ahmad
- Department of Occupational Health, Faculty of Health, Hamadan University of Medical Science
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- AHMADI Hassan
- Department of Occupational Health, Faculty of Health, Hamadan University of Medical Science
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- MAHJUB Hossein
- Department of Biostatistics & Epidemiology, Faculty of Health, Hamadan University of Medical Science
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Motor vehicle traffic is the main emission source of benzene. We undertook this study in order to compare benzene exposure and urinary levels of trans,trans-muconic acid (t,t-MA) in taxi drivers and petrol station workers. Air benzene levels were analyzed with gas chromatography using a Flame Ionization Detector. t,t-MA was extracted from urine and analyzed using high performance liquid chromatography. Significant differences in levels of urinary t,t-MA were found in drivers and petrol station workers when compared to a control group (p<0.05). Correlation coefficients between benzene in air and t,t-MA for petrol station workers and drivers were 0.65 and 0.30, respectively. The concentration of benzene in the breathing zone of petrol station workers was 2-3 times higher than drivers, and also 3 times greater than a threshold level (0.5 ppm) recommended by the American Conference of Governmental Industrial Hygienists (ACGIH). The lowest benzene concentration at which urinary t,t-MA increased to a measurable level was approximately 0.17 ppm. In conclusion our results suggested that high benzene levels are emitted in petrol stations in west Iran. t,t-MA analysis was able to separate those exposed from the non-exposed benzene group when benzene in the breathing zone of subjects was greater than 0.17 ppm.<br>
収録刊行物
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- Industrial health
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Industrial health 45 (3), 396-401, 2007
独立行政法人 労働者健康安全機構 労働安全衛生総合研究所
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詳細情報 詳細情報について
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- CRID
- 1390282679255604992
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- NII論文ID
- 130004483239
- 40015480167
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- NII書誌ID
- AA00672955
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- ISSN
- 18808026
- 00198366
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- NDL書誌ID
- 8821154
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- 本文言語コード
- en
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- データソース種別
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- NDL
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