重庆市九龙坡区某焦化厂苯并[a]芘污染状况调查分析  

Investigation of Air Benzo (a)pyrene Pollution in a Coke Plant in Jiulongpo District of Chongqing

作　　者：卢涛[1] 汤艳[2] 涂白杰[1] 

机构地区：[1]重庆医科大学公共卫生学院环境卫生与劳动卫生教研室,重庆400016 [2]泸州医学院公共卫生系劳动卫生教研室,四川泸州646000

出　　处：《环境与健康杂志》2010年第3期248-250,共3页Journal of Environment and Health

基　　金：国家自然科学基金资助项目(30671744)

摘　　要：目的研究重庆市九龙坡区某焦化厂苯并[a]芘(benzo[a]pyrene,B[a]P)污染状况。方法于2008年9月采用高效液相色谱法对焦化厂焦炉作业环境空气中B[a]P浓度进行了分析测定;采用B[a]P快速测量仪对焦化厂周围不同距离区域以及周边不同功能区各季度的B[a]P浓度进行了实时监测和分析。结果焦炉作业环境空气中B[a]P的浓度依次为焦炉顶部>焦炉侧面>焦炉底部。焦炉底部、焦炉侧面和焦炉顶部的B[a]P浓度随着采样时间的延长有逐步升高的趋势,差异有统计学意义(P<0.05);距离焦化厂越近的区域B[a]P的浓度越高,差异有统计学意义(P<0.05);焦化厂B[a]P浓度一季度较高,三季度浓度较低。焦化厂一、二、三、四季度的B[a]P浓度均明显高于周边功能区,差异有统计学意义(P<0.05)。结论焦化厂的生产性排放是空气中B[a]P污染的重要来源,距离焦化厂越近的区域B[a]P的浓度越高。Objective To know the air benzo[a]pyrene （B[a]P） pollution level in a coke plant of Chongqing Iron ＆ Steel Group. Methods The concentrations of B[a]P in coke oven operating environment were determined by high performance liquid chromatography （HPLC） in different places of work in Sep. 2008.B[a]P concentration at different distances on the surrounding regions of coke plant and real-time monitoring in every quarter around the different functional areas was conducted. Results The air B[a]P concentration in the coke plant was descending following the order, the top of coke oven, the side of coke oven, the bottom of coke oven. B [a]P concentrations of oven bottom, oven side, oven top showed a gradual increase tendency with the extension of the sampling time （P〈0.05）. B（a）P concentration was higher in the regions near to the coke plant （P〈0.05）. B[a]P concentration in the air in the coke plant was higher in the first quarter, and was lower in the third quarter, and it was significantly higher compared with that in the surrounding functional area in any season （P〈0.05）. Conclusion Production emissions from the coking plant are major sources causing B（a）P pollution in the air. The concentration of B（a）P is higher in the region closer to the coking plant.

关 键 词：空气污染 苯并[A]芘 职业暴露 健康危害 

分 类 号：R122.2[医药卫生—环境卫生学]