气候变化领域集成服务门户(CCPortal): Convergent evidence for the pervasive but limited contribution of biomass burning to atmospheric ammonia in peninsular Southeast Asia

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DOI	10.5194/acp-21-7187-2021
	Convergent evidence for the pervasive but limited contribution of biomass burning to atmospheric ammonia in peninsular Southeast Asia
	Chang Y.; Zhang Y.-L.; Kawichai S.; Wang Q.; Van Damme M.; Clarisse L.; Prapamontol T.; Lehmann M.F.
发表日期	2021
ISSN	1680-7316
起始页码	7187
结束页码	7198
卷号	21 期号:9
英文摘要	Ammonia (NH3) is an important agent involved in atmospheric chemistry and nitrogen cycling. Current estimates of NH3 emissions from biomass burning (BB) differ by more than a factor of 2, impeding a reliable assessment of their environmental consequences. Combining highresolution satellite observations of NH3 columns with network measurements of the concentration and stable nitrogen isotope composition (δ15N) of NH3, we present coherent estimates of the amount of NH3 derived from BB in the heartland of Southeast Asia, a tropical monsoon environment. Our results reveal a strong variability in atmospheric NH3 levels in time and space across different landscapes. All of the evidence on hand suggests that anthropogenic activities are the most important modulating control with respect to the observed patterns of NH3 distribution in the study area. Nisotope balance considerations revealed that during the intensive fire period, the atmospheric input from BB accounts for no more than 21 ± 5 % (1s) of the ambient NH3, even at the rural sites and in the proximity of burning areas. Our N-isotope-based assessment of the variation in the relative contribution of BB-derived NH3 is further validated independently through the measurements of particulate KC, a chemical tracer of BB. Our findings underscore that BB-induced NH3 emissions in tropical monsoon environments can be much lower than previously anticipated, with important implications for future modeling studies to better constrain the climate and air quality effects of wildfires. © 2021 Author(s).
语种	英语
scopus关键词	air quality; ammonia; atmospheric chemistry; biomass burning; emission; human activity; nitrogen cycle; nitrogen isotope; wildfire; Southeast Asia
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/246902
作者单位	Klme and CIC-FEMD, Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai, 50200, Thailand; Université Libre de Bruxelles (ULB), Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels, 1050, Belgium; Department of Environmental Sciences, University of Basel, Basel, 4056, Switzerland
推荐引用方式 GB/T 7714	Chang Y.,Zhang Y.-L.,Kawichai S.,et al. Convergent evidence for the pervasive but limited contribution of biomass burning to atmospheric ammonia in peninsular Southeast Asia[J],2021,21(9).
APA	Chang Y..,Zhang Y.-L..,Kawichai S..,Wang Q..,Van Damme M..,...&Lehmann M.F..(2021).Convergent evidence for the pervasive but limited contribution of biomass burning to atmospheric ammonia in peninsular Southeast Asia.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(9).
MLA	Chang Y.,et al."Convergent evidence for the pervasive but limited contribution of biomass burning to atmospheric ammonia in peninsular Southeast Asia".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.9(2021).