气候变化领域集成服务门户(CCPortal): Characteristics of sub-10 nm particle emissions from in-use commercial aircraft observed at Narita International Airport

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DOI	10.5194/acp-21-1085-2021
	Characteristics of sub-10 nm particle emissions from in-use commercial aircraft observed at Narita International Airport
	Takegawa N.; Murashima Y.; Fushimi A.; Misawa K.; Fujitani Y.; Saitoh K.; Sakurai H.
发表日期	2021
ISSN	1680-7316
起始页码	1085
结束页码	1104
卷号	21 期号:2
英文摘要	The characterization of ultrafine particle emissions from jet aircraft equipped with turbofan engines, which are commonly used in civil aviation, is an important issue in the assessment of the impacts of aviation on climate and human health. We conducted field observations of aerosols and carbon dioxide (CO2) near a runway at Narita International Airport, Japan, in February 2018. We used an ultrafine condensation particle counter (UCPC) and a condensation particle counter (CPC) with unheated and 350 C heated operation modes to investigate the contributions of sub-10 nm size ranges to the total and the non-volatile particle number concentrations. The performance of the 350 C heated mode was tested in the laboratory to verify the consistency with existing methods for non-volatile particle measurements.We also used a scanning mobility particle sizer with unheated and 350 C heated modes and an engine exhaust particle sizer for the measurements of particle number size distributions. Spiked increases in the particle number concentrations and CO2 mixing ratios were observed to be associated with the directions of wind from the runway, which can be attributed to diluted aircraft exhaust plumes. We estimated the particle number emission indices (EIs) for discrete take-off plumes using the UCPC, CPC, and CO2 data. The median values of the total and the non-volatile particle number EIs for diameters larger than 2.5 nm as derived from the UCPC data were found to be 1:11017 and 5:71015 kg per fuel, respectively. More than half the particle number EIs were in the size range smaller than 10 nm for both the total and the non-volatile particles in most of the cases analyzed in this study. The significance of sub-10 nm size ranges for the total particles in the diluted plumes was qualitatively consistent with previous studies, but that for the non-volatile particles was unexpected. Possible factors affecting the similarities and differences compared with the previous findings are discussed. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168807
作者单位	Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan; National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8563, Japan; National Institute for Environmental Studies, Tsukuba, Ibaraki, 305-8506, Japan; Environmental Science Analysis and Research Laboratory, Hachimantai, Iwate, 028-7302, Japan
推荐引用方式 GB/T 7714	Takegawa N.,Murashima Y.,Fushimi A.,et al. Characteristics of sub-10 nm particle emissions from in-use commercial aircraft observed at Narita International Airport[J],2021,21(2).
APA	Takegawa N..,Murashima Y..,Fushimi A..,Misawa K..,Fujitani Y..,...&Sakurai H..(2021).Characteristics of sub-10 nm particle emissions from in-use commercial aircraft observed at Narita International Airport.Atmospheric Chemistry and Physics,21(2).
MLA	Takegawa N.,et al."Characteristics of sub-10 nm particle emissions from in-use commercial aircraft observed at Narita International Airport".Atmospheric Chemistry and Physics 21.2(2021).