气候变化领域集成服务门户(CCPortal): Atmospheric concentrations and emission ratios of black carbon and nitrogen oxides in the Arabian/Persian Gulf region

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DOI	10.1016/j.atmosenv.2021.118451
	Atmospheric concentrations and emission ratios of black carbon and nitrogen oxides in the Arabian/Persian Gulf region
	Alfoldy B.; Mahfouz M.M.; Gregorič A.; Ivančič M.; Ježek I.; Rigler M.
发表日期	2021
ISSN	1352-2310
卷号	256
英文摘要	The atmospheric concentration of black carbon (BC) has paramount importance worldwide due to its role in global warming and its adverse effect on human health. Only limited information is available about BC concentration and emission factors from the Arabian/Persian Gulf region despite the presence of significant sources including petrochemical industry and maritime shipping. The atmospheric concentrations of BC, nitrogen oxides (NO, NO2), ozone and particulate matter (PM10) were monitored at a suburban location and at a central residential location in Doha, Qatar during fall-spring 2016–2017. Elevated NOX and BC mean concentrations (25.8 ppbv and 5.17 μg/m3 respectively) and maximum values (228 ppbv vs. 27 μg/m3) were measured at both locations. The average ozone mixing ratio was 15.9 ppbv (max. 52.6 ppbv). Typically, the BC concentration was correlated with NOX, which indicates common sources. BC/NOX emission ratios (ER) were calculated to characterise the sources, while the NO/NOX concentration ratio was used as a proxy of pollution age. The calculated BC/NOX emission ratios were found to be high comparing to the EMEP database, with the means of 0.13 μg m−3 ppbv−1 (suburban location) and 0.10 μg m−3 ppbv−1 (residential location). The BC/NOX ER did not show significant daily variation, while the NO/NOX ratio showed typical urban time pattern with high ratio during morning rush hours following by a decreasing trend during afternoon, and minimum values at night-time. The PM10 concentrations were high during the measurement period with a mean of 103 μg m−3, which is typical in the Gulf region. During occasional dust storm events the PM10 hourly average concentration raised peaked at 1054 μg m−3. Significant influence of mineral dust was observed on the BC measurement and the absorption properties, as it was increasing the BC readings and widening the distribution of the absorption Ångström exponent. The mass absorption cross-section of mineral dust was determined during the major dust storm event. © 2021 The Authors
关键词	Absorption Ångström exponent (AAE)Aethalometer Mass absorption cross-section (MAC)Mineral dust
语种	英语
scopus关键词	Air pollution; Global warming; Housing; Location; Minerals; Nitrogen oxides; Ozone; Storms; Absorption angstrom exponent (AAE); Aethalometer; Arabian/Persian Gulf; Atmospheric concentration; Black carbon; Concentration ratio; Emission ratio; Mass absorption cross-section; Mineral dust; PM$-10$; Dust; black carbon; nitrogen dioxide; nitrogen oxide; ozone; black carbon; dust storm; global warming; mineral dust; mixing ratio; nitrogen; particulate matter; petrochemical industry; residential location; absorption; air pollution; Article; atmosphere; autumn; concentration (parameter); concentration ratio; data base; dust storm; measurement; mineral dust; particulate matter 10; Persian Gulf; priority journal; Qatar; residential area; seasonal variation; spring; suburban area; time; Arabian Sea; Doha; Indian Ocean; Persian Gulf; Qatar
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248396
作者单位	Aerosol d.o.o., Kamniska 39a, Ljubljana, Sl-1000, Slovenia; Environmental Science Center, Qatar University, P. O. Box 2713, Doha, Qatar; Center for Atmospheric Research, University of Nova Gorica, Vipavska 13, Nova Gorica, Sl-5000, Slovenia
推荐引用方式 GB/T 7714	Alfoldy B.,Mahfouz M.M.,Gregorič A.,et al. Atmospheric concentrations and emission ratios of black carbon and nitrogen oxides in the Arabian/Persian Gulf region[J],2021,256.
APA	Alfoldy B.,Mahfouz M.M.,Gregorič A.,Ivančič M.,Ježek I.,&Rigler M..(2021).Atmospheric concentrations and emission ratios of black carbon and nitrogen oxides in the Arabian/Persian Gulf region.ATMOSPHERIC ENVIRONMENT,256.
MLA	Alfoldy B.,et al."Atmospheric concentrations and emission ratios of black carbon and nitrogen oxides in the Arabian/Persian Gulf region".ATMOSPHERIC ENVIRONMENT 256(2021).