基于客观实测及主观评价的车内气味溯源研究
Research of in-vehicle odor sources based on field measurement and odor evaluation
摘要：
为了探究车内异味的主要物质来源，明确车内气味问题的优化目标，测试了国内某主流品牌乘用车在实际使用环境条件下的车内污染物浓度水平，共获得27辆车内124种重点挥发性有机物（VOC）的浓度值。结果表明，这些物质以烷烯烃、苯系物、醛酮和醇类物质为主，占重点VOC检出总数的85%。同时，由嗅辨员对车内的气味强度进行评分，根据两者的相关性确定了22种可能导致车内异味的VOC。从具体物质角度给出了解决车内气味问题的方向，对进一步指导汽车的设计制造、标准制定和污染控制策略等有较好意义。
Abstract：
In order to explore the main sources of in-vehicle odor and clarify the optimization goal of such issue, pollutant concentration levels in a commonly used domestic vehicle brand are tested under actual use environmental conditions, and a total of 124 key volatile organic compounds (VOCs) concentration levels in 27 vehicles are obtained. The results show that alkylenes, benzenes, aldehydes, ketones and alcohols play a significant role, accounting for 85% of the total number of VOCs detected. At the same time, interior odor intensity in these measured vehicles is judged by the sniffing person. Based on the correlation between concentration and odor, a total of 22 types of VOCs that may lead to in-vehicle odor are determined. This study provides a possible method to solve the problem of in-vehicle odor and is of great significance for further design and manufacture of vehicles, standard-setting and pollution control strategies.
Keywords:vehicle; volatile organic compound; concentration; odor; correlation; control strategy