Chemistry Department, ICEx, Federal University of Minas Gerais, Avenida Antonio Carlos 6627, 31270-901, Belo Horizonte, MG, Brazil.
Anal Bioanal Chem. 2009 Dec;395(8):2583-9. doi: 10.1007/s00216-009-3206-x. Epub 2009 Oct 20.
Benzene is classified as a Group I carcinogen by the International Agency for Research on Cancer (IARC). The risk assessment for benzene can be performed by monitoring environmental and occupational air, as well as biological monitoring through biomarkers. The present work developed and validated methods for benzene analysis by GC/MS using SPME as the sampling technique for ambient air and breath. The results of the analysis of air in parks and avenues demonstrated a significant difference, with average values of 4.05 and 18.26 microg m(-3), respectively, for benzene. Sampling of air in the occupational environment furnished an average of 3.41 and 39.81 microg m(-3). Moreover, the correlations between ambient air and expired air showed a significant tendency to linearity (R (2) = 0.850 and R (2) = 0.879). The results obtained for two groups of employees (31.91 and 72.62 microg m(-3)) presented the same trend as that from the analysis of environmental air.
苯被国际癌症研究机构（IARC）列为 I 类致癌物质。苯的风险评估可以通过监测环境和职业空气，以及通过生物标志物进行生物监测来进行。本工作开发并验证了使用 SPME 作为采样技术对环境空气和呼吸进行 GC/MS 分析苯的方法。公园和大道空气中苯的分析结果表明存在显著差异，空气中苯的平均值分别为 4.05 和 18.26μg/m3。职业环境空气中的采样平均值分别为 3.41 和 39.81μg/m3。此外，环境空气与呼出空气之间的相关性显示出显著的线性趋势（R2=0.850 和 R2=0.879）。两组员工（31.91 和 72.62μg/m3）的结果与环境空气分析结果呈现相同趋势。
