摘要
乘用车内常存在对乘客构成潜在健康风险的高浓度含氧挥发性有机化合物(OVOCs),因此评估车载空气净化器效能具有现实意义。使用2,4-二硝基苯肼硅胶管法,从6辆乘用车中采集了OVOCs样品,并分别收集了经过负离子型和低温等离子体(LTP)型两种净化器处理前后的特定异味OVOCs样品。研究结果显示,6辆乘用车内共检测出10种OVOCs,甲醛、乙醛和丙酮是最主要成分,其检出率均达到100%,质量浓度分别为10.29~22.75、4.27~43.38、8.56~25.92μg/m^(3)。在净化效果方面,对于车辆内饰源OVOCs,负离子型净化器的平均去除率为81.10%,LTP型净化器的平均去除率为88.90%;对于食物源OVOCs,负离子型净化器的平均去除率为14.78%,LTP型净化器的平均去除率为74.80%。可见,LTP型净化器的净化效果更优。
To address the potential health risks posed by high concentrations of oxygenated volatile organic compounds(OVOCs)in passenger vehicles,evaluating the effectiveness of in-vehicle air purifiers holds practical significance.Utilizing the 2,4-dinitrophenylhydrazine(DNPH)silica gel tube method,OVOCs samples were systematically collected from six passenger vehicles.Additionally,samples of specific odorous OVOCs were gathered before and after treatment with negative ion and low-temperature plasma(LTP)purifiers to assess their purification capabilities.The analysis revealed the presence of 10 distinct OVOCs in the sampled vehicles,with formaldehyde,acetaldehyde,and acetone being the most prevalent,each detected in 100% of the samples.Their respective mass concentration ranges were measured as 10.29-22.75,4.27-43.38 and 8.56-25.92μg/m^(3).With regard to purification performance,the negative ion purifier achieved an average removal efficiency of 81.10% for OVOCs originating from vehicle interior sources,whereas the LTP purifier demonstrated a higher average removal efficiency of 88.90%.For OVOCs derived from food sources,the negative ion purifier exhibited an average removal efficiency of 14.78%,in contrast to the LTP purifier’s efficiency of 74.80%.These findings suggested that the LTP purifier demonstrated superior purification efficiency compared to the negative ion purifier.
作者
罗斯
王耕
唐鹏凯
孙孜涵
庞小兵
王丽玮
LUO Si;WANG Geng;TANG Pengkai;SUN Zihan;PANG Xiaobing;WANG Liwei(College of Environment,Zhejiang University of Technology,Hangzhou Zhejiang 310014;Jiangsu Provincial Research Center for Collaborative Control of Pollution and Carbon Reduction in Key Industries,Jiangsu Provincial Environmental Engineering Technology Co.,Ltd.,Nanjing Jiangsu 210019)
出处
《环境污染与防治》
北大核心
2025年第12期11-17,I0001,共8页
Environmental Pollution & Control
基金
国家自然科学基金资助项目(No.42327806、No.42442506)
江苏省环境工程技术有限公司研发项目(No.JSEP-GJ2022-0014-RE-ZL)。
关键词
空气净化器
去除率
车厢异味
含氧挥发性有机化合物
air purifier
removal efficiency
carriage smell
oxygenated volatile organic compounds
