聚氯乙烯电缆燃烧烟气中苯系物毒性分析  

Toxicity analysis of benzene homologues in flue gas of PVC cable combustion

作　　者：刘志浩 胡定煜[1] LIU Zhi-hao;HU Ding-yu(The Chinese People's Armed Police Forces Academy,Hebei Langfang 065000,China)

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《消防科学与技术》2018年第7期867-870,共4页Fire Science and Technology

基　　金：公安部技术研究计划项目(2016JSYJC55)

摘　　要：采用气相色谱仪对三种聚氯乙烯电缆在300、400、500、600、700、800、900℃下燃烧时产生的烟气中苯系物的毒性进行实验研究,测定苯系物含量,以公式法分析人在不同体力活动下的苯的致癌风险及苯系物的非致癌风险。研究结果表明,三种电缆燃烧烟气中苯系物排放总量ZR-RVV>ZR-YJV>YJV;苯系物中只有苯在500℃以上时的排放浓度超过了国家标准,但400℃以上时苯的致癌风险超过可接受范围,同样400℃以上时(不包括400℃时的轻微体力活动)开始出现非致癌风险。The toxicity of benzene homologues in flue gas produced by burning three PVC cables at 300,400,500,600,700,800 and 900℃was studied by gas chromatograph.The concentration of benzene homologues was tested and the carcinogenic risk of benzene and the non-carcinogenic risk of benzene homologues were an?alyzed in different physical activities.The results showed that the total amount of benzene homologues in three kinds of cable combustion flue gas is ZR-RVV>ZR-YJV>YJV;Only the emission concentrations of benzene above 500°C in the benzene homologues exceeded the national standard,but the carcinogenic risk of benzene above 400°C exceeded the acceptable range and non-carcinogenic risk of benzene above 400°C(excluding minor physical activity at 400°C)began to occurrence.

关 键 词：聚氯乙烯电缆 燃烧 苯系物 毒性分析 

分 类 号：X932[环境科学与工程—安全科学] TM247[一般工业技术—材料科学与工程]