科技创新与应用2024，Vol.14Issue(16)：33-38,6.DOI:10.19981/j.CN23-1581/G3.2024.16.008
中高档私家车室内典型VOCs的污染特征与预测因素
摘要
Abstract
In order to understand the profiles,sources of pollution and predictors of volatile organic compounds(VOCs)in the cabin air of private cars,indoor air of 73 middle-and high-endprivate cars were analyzed for fourteen typical VOCs.Results showed that methylcyclopentane,n-decane,undecane,xylene/ethylbenzene and trimethylbenzene were detected in all samples.The total concentrations of VOCs in cabin air ranged from 109 to 2659 μg/m3 with a median of 672 μg/m3.Methylcyclopentane had the highest concentrations(6.48～963 μg/m3),followed by nonane(＜LOQ～705 μg/m3),n-decane(8.43～581 μg/m3)and methylcyclohexane(＜LOQ～513 μg/m3).Significant positive correlations were found between almost all individual VOCs compounds with correlation coefficients ranged from 0.25 to 0.95,indicating same or similar sources for these compounds.Principal component analysis revealed that four pricipal components explained more than 84%of the total variance of chemical concentration in the data,and a single principal component explained most of the variance in the concentrations of the chemicals within a same group.Furthermore,multivariable linear regression model was used to analyze the correlation between predictors and principal component scores.The results showed that vehicle brand,vehicle type,exhaust volume,total mileage and the age of vehicle were identified as predictors of the level of corresponding VOCs in the cabin air of middle and high grades private cars.关键词
私家车/室内空气/挥发性有机物/污染特征/预测因素Key words
private car/indoor air/volatile organic compound/pollution characteristics/predictor分类
资源环境引用本文复制引用
汪杰,燕志奇,王慧,张立军,韦学军,谭银湘,王甫华,高伟,谭国斌..中高档私家车室内典型VOCs的污染特征与预测因素[J].科技创新与应用,2024,14(16):33-38,6.基金项目
广东省重点领域研发计划项目(2020B1111360002) （2020B1111360002）
羊城创新创业领军人才支持计划项目(领军人才2020012) （领军人才2020012）
