气候变化领域集成服务门户(CCPortal): Influence of Vehicular Emissions (NO; NO2; CO and NMHCs) on the Mixing Ratio of Atmospheric Ammonia (NH3) in Delhi; India

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DOI	10.1007/s00244-019-00689-8
	Influence of Vehicular Emissions (NO; NO2; CO and NMHCs) on the Mixing Ratio of Atmospheric Ammonia (NH3) in Delhi; India
	Kotnala G.; Sharma S.K.; Mandal T.K.
发表日期	2020
ISSN	904341
起始页码	79
结束页码	85
卷号	78 期号:1
英文摘要	Mixing ratios of atmospheric ammonia (NH3), nitric oxide (NO), carbon monoxide (CO), nonmethane hydrocarbons (NMHCs), and methane (CH4) were measured to investigate the vehicular emissions, which are a dominant source of atmospheric NH3 in urban sites of Delhi, India from January 2013 to December 2014. The annual average mixing ratios of NH3, NO, CO, NMHCs, and CH4 were 21.2 ± 2.1 ppb, 21.2 ± 6.1 ppb, 1.89 ± 0.18 ppm, 0.67 ± 0.21 ppm and 3.11 ± 0.53 ppm, respectively. Considering NO as a tracer of vehicular plume, ambient NH3 was correlated with NO during peak traffic hour in the morning (7:00–10:00 h) and evening (17:00–19:00 h) and observed significant positive correlation between them. Result reveals that the mixing ratio of atmospheric NH3 significantly positive correlated with traffic related pollutants (NO, CO, and NHHCs) during all the seasons (winter, summer, and monsoon). During winter, the average mixing ratio of atmospheric NH3 was increased by 1.2–3.5 ppb in the morning peak hour, whereas increased by 0.3–1.6 ppb in the evening peak hour. Similarly, an increase in NH3 mixing ratio was observed during summer (morning: 1.2–2.7 ppb and evening: 1.5–1.6 ppb) and monsoon (morning: 0.4–3.6 ppb and evening: 0.9–1.4 ppb) seasons. The results emphasized that the traffic could be one of the dominant source of ambient NH3 at the urban site of Delhi, as illustrated by positive relationships of NH3 with traffic related co-pollutants (NO, CO and NMHCs)., Springer Science+Business Media, LLC, part of Springer Nature.
scopus关键词	ammonia; atmospheric pollution; mixing ratio; pollutant source; traffic emission; urban pollution; urban site; Delhi; India; ammonia; carbon monoxide; hydrocarbon; nitric oxide; nitrogen dioxide; nitrogen oxide; air pollutant; city; environmental monitoring; exhaust gas; India; procedures; season; Air Pollutants; Ammonia; Carbon Monoxide; Cities; Environmental Monitoring; Hydrocarbons; India; Nitric Oxide; Nitrogen Dioxide; Nitrogen Oxides; Seasons; Vehicle Emissions
来源期刊	Archives of Environmental Contamination and Toxicology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177014
作者单位	Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
推荐引用方式 GB/T 7714	Kotnala G.,Sharma S.K.,Mandal T.K.. Influence of Vehicular Emissions (NO; NO2; CO and NMHCs) on the Mixing Ratio of Atmospheric Ammonia (NH3) in Delhi; India[J],2020,78(1).
APA	Kotnala G.,Sharma S.K.,&Mandal T.K..(2020).Influence of Vehicular Emissions (NO; NO2; CO and NMHCs) on the Mixing Ratio of Atmospheric Ammonia (NH3) in Delhi; India.Archives of Environmental Contamination and Toxicology,78(1).
MLA	Kotnala G.,et al."Influence of Vehicular Emissions (NO; NO2; CO and NMHCs) on the Mixing Ratio of Atmospheric Ammonia (NH3) in Delhi; India".Archives of Environmental Contamination and Toxicology 78.1(2020).