摘要
BTEX是舰船舱室大气中典型的挥发性有机物,本研究通过Tenax-TA采样管富集采样和实验室热脱附气相色谱-质谱联用分析,对某新建大型舰船航行工况下生活舱和机舱大气BTEX进行测试分析,并对BTEX暴露健康风险进行了评估。测试结果表明舰船生活舱BTEX浓度高于机舱,同时二甲苯和乙苯占BTEX总量的80%以上,且二甲苯和乙苯主要来自同一释放源。对比分析结果表明所研究的舰船舱室BTEX浓度显著高于国外相关舰船。BTEX的呼吸暴露癌症风险(LCR)值超过安全阈值,存在致癌风险。该研究可为舰船舱室大气污染控制系统的设计及优化提供一定的指导。
As typical volatile organic compounds in vessel cabin atmosphere,BTEX in the living cabin and the machinery cabin of a typical vessel were sampled by Tenax-TA tubes and analyzed by thermal desorption-gas chromatography-mass spectrometry(TD-GC-MS),and then the corresponding health risk assessment was carried out in this paper.The results showed that the BTEX concentration in the living accommodation was higher than that in the auxiliary machinery room.Besides,xylene and ethylbenzene accounted for more than 80%of the total BTEX in the studied vessel cabins and were supposed to be released from the same source.Compared with foreign vessels,the BTEX mass concentrations in the studied vessel cabins were obviously higher.As for different vehicles,the BTEX mass concentrations in vessel cabins is the highest,followed by the automobile and aircraft.The LCR was higher than the safety threshold,indicating the existence of carcinogenic risk.This study is supposed to offer some guidance for the design and optimization of the atmosphere pollution control system in vessel cabins.
作者
孙燕桥
侯晨
余涛
朱吉兴
Sun Yanqiao;Hou Chen;Yu Tao;Zhu Jixing(92609 Unit of PLA,Beijing 100077,China;Wuhan Second Ship Design and Research Institute,Wuhan 430205,China;Tsinghua University,Beijing 100084,China)
出处
《分析仪器》
CAS
2019年第1期60-64,共5页
Analytical Instrumentation
