期刊
出版社
MDPI
DOI: 10.3390/ijerph13060596
关键词
volatile organic compounds (VOCs); carbonyl compounds (CCs); coach; in-vehicle; temperature; humidity
资金
- Knowledge Innovation Program of the Chinese Academy of Sciences [IUEQN201301]
- National Natural Science Foundation of China [41390110, 21207128, 21207126, 21477124]
- Natural Science Foundation of Ningbo, China [2014A610274, 2013A610179]
- Xiamen Municipal Bureau of Science and Technology Program [3502Z20140013]
- Special Scientific Research Funds for Environmental Protection Commonweal Section [201309027]
An air-conditioned coach is an important form of transportation in modern motorized society; as a result, there is an increasing concern of in-vehicle air pollution. In this study, we aimed to identify and quantify the levels of volatile organic compounds (VOCs) and carbonyl compounds (CCs) in air samples collected from the cabins of newly produced, medium- and large-size coaches. Among the identified VOCs and CCs, toluene, ethylbenzene, xylene, formaldehyde, acetaldehyde, acrolein/acetone, and isovaleraldehyde were relatively abundant in the cabins. Time was found to affect the emissions of the contaminants in the coaches. Except for benzaldehyde, valeraldehyde and benzene, the highest in-vehicle concentrations of VOCs and CCs were observed on the 15th day after coming off the assembly line, and the concentrations exhibited an approximately inverted U-shaped pattern as a function of time. Interestingly, this study also showed that the interior temperature of the coaches significantly affected the VOCs emissions from the interior materials, whereas the levels of CCs were mainly influenced by the relative humidity within the coaches. In China, guidelines and regulations for the in-vehicle air quality assessment of the coaches have not yet been issued. The results of this study provide further understanding of the in-vehicle air quality of air-conditioned coaches and can be used in the development of both specific and general rules regarding medium- and large-size coaches.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据