干旱区生态环境知识资源中心(Arid): Variation of carbonaceous species and trace elements in PM10 at a mountain site in the central Himalayan region of India

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DOI	10.1007/s10874-020-09402-9
	Variation of carbonaceous species and trace elements in PM10 at a mountain site in the central Himalayan region of India
	Sharma, S. K.; Choudhary, Nikki; Srivastava, Priyanka; Naja, Manish; Vijayan, N.; Kotnala, Garima; Mandal, T. K.
通讯作者	Sharma, SK
来源期刊	JOURNAL OF ATMOSPHERIC CHEMISTRY
ISSN	0167-7764
EISSN	1573-0662
出版年	2020
卷号	77 期号:3 页码:49-62
英文摘要	Observations of carbonaceous species [organic carbon (OC), elemental carbon (EC), water soluble organic carbon (WSOC), carbonaceous aerosols (CAs) and secondary organic carbon (SOC) ] and trace elements (As, Cr, Ni, Zn, Na, Mg, Al, P, K, Ca, Ti, Fe, and Mn) in PM10 are made over a high altitude site (ARIES, Nainital, 29.4 degrees N, 79.5 degrees E, similar to 1958 m amsl) in the central Himalayan region during October 2018-February 2019 to explore their possible sources. The average concentrations of PM10, OC, EC, WSOC, CA and SOC were recorded as 44 +/- 13 mu g m(-3), 3.66 +/- 1.26 mu g m(-3), 1.29 +/- 0.61 mu g m(-3), 2.28 +/- 0.76 mu g m(-3), 7.15 +/- 1.96 mu g m(-3)and 1.45 +/- 0.73 mu g m(-3), respectively during the study period. The concentrations of PM10, OC, EC, WSOC, CAs and SOC were significantly varied during autumn (October-November) and winter (December-February) seasons. During both the seasons, significant positive linear trend between OC & EC and OC & WSOC have been observed which is indicative of their common sources of carbonaceous aerosols at the study site. WSOC/OC ratio was estimated as 0.56 and 0.67 during autumn and winter, respectively suggested that the biomass burning could be one of the major sources of carbonaceous aerosols at Nainital. The significant positive correlation of PM10 with crustal elements (Al, Fe, Ca, Mg and Ti) as well as correlation of Al with other crustal elements (Fe, Ca, Mg and Ti) indicates the abundance of mineral dust at the sampling site. The observed Fe/Al ratio (1.07) also indicates mineral dust as a source at the sampling site, similarly, Ca/Al ratio (1.36) indicates that aerosols over this region is rich in Ca mineral as compared to average continental crust. Principal component analysis (PCA) identified the contribution of crustal/soil dust, biomass burning and industrial emissions to the PM10 over the central Himalayan region of India. Five days back trajectory analysis indicates that the air mass impacting the sampling site is from local surrounding area in Uttrakhand as well from Himachal Pradesh, Jammu & Kashmir, Ingo Gangetic Plain (IGP) region, Pakistan, Afghanistan region and Thar Desert.
英文关键词	Organic carbon Elemental carbon WSOC Trace elements PCA
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000560514000001
WOS关键词	SOURCE APPORTIONMENT ; PARTICULATE MATTER ; BLACK-CARBON ; AEROSOLS ; ENVIRONMENT ; COMBUSTION ; BENGAL ; WINTER ; GASES ; URBAN
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325681
作者单位	[Sharma, S. K.; Choudhary, Nikki; Vijayan, N.; Kotnala, Garima; Mandal, T. K.] Natl Phys Lab, CSIR, Dr KS Krishnan Rd, New Delhi 110012, India; [Sharma, S. K.; Kotnala, Garima; Mandal, T. K.] Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India; [Srivastava, Priyanka; Naja, Manish] Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263002, Uttarakhand, India
推荐引用方式 GB/T 7714	Sharma, S. K.,Choudhary, Nikki,Srivastava, Priyanka,et al. Variation of carbonaceous species and trace elements in PM10 at a mountain site in the central Himalayan region of India[J],2020,77(3):49-62.
APA	Sharma, S. K..,Choudhary, Nikki.,Srivastava, Priyanka.,Naja, Manish.,Vijayan, N..,...&Mandal, T. K..(2020).Variation of carbonaceous species and trace elements in PM10 at a mountain site in the central Himalayan region of India.JOURNAL OF ATMOSPHERIC CHEMISTRY,77(3),49-62.
MLA	Sharma, S. K.,et al."Variation of carbonaceous species and trace elements in PM10 at a mountain site in the central Himalayan region of India".JOURNAL OF ATMOSPHERIC CHEMISTRY 77.3(2020):49-62.