干旱区生态环境知识资源中心(Arid): Fine Mode Carbonaceous Aerosols of PM2.5 Over the High-Altitude Stations of the Indian Himalayas

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DOI	10.1007/s12647-023-00647-9
	Fine Mode Carbonaceous Aerosols of PM2.5 Over the High-Altitude Stations of the Indian Himalayas
	Choudhary, Nikki; Kuniyal, Jagdish Chandra; Lata, Renu; Dutta, Monami; Rai, Akansha; Chaudhary, Sheetal; Thakur, Isha; Bawari, Archana; Chatterjee, Abhijit; Mandal, Tuhin Kumar; Sharma, Sudhir Kumar
通讯作者	Choudhary, N ; Sharma, SK
来源期刊	MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA
ISSN	0970-3950
EISSN	0974-9853
出版年	2023
卷号	38 期号:3 页码:771-778
英文摘要	Carbonaceous Aerosols (CAs) have played an active role in the Earth's atmospheric system, climate, human health, and radiative forcing. Due to their significant role in the atmosphere, it was imperative to characterize the carbonaceous components [organic carbon (OC), elemental carbon (EC), water-soluble organic carbon (WSOC), and total carbonaceous aerosols (TCA)] of PM2.5 samples collected at three different urban locations (Mohal-Kullu, Almora, and Darjeeling) of the Himalayan region of India during August 2018-December 2019. The annual average mass concentrations of PM2.5 were recorded as 40 +/- 27, 27 +/- 21, and 38 +/- 13 mu g m(-3) for Mohal-Kullu, Almora, and Darjeeling, respectively, which is near the Indian National Ambient Air Quality Standards (NAAQS) (24 h: 60 mu g m(-3); annual: 40 mu g m(-3)). The OC/EC ratio and significant correlation of OC with EC and WSOC with OC indicated a substantial effect of biomass burning and secondary organic aerosol formation over the study sites. OC was found to be secondary in nature over the study sites during the study period. The contribution of TCA in PM2.5 showed CAs as a significant contributor to the mass concentration of particulate matter (PM) over the Himalayan regions. HYSPLIT model demonstrates that regionally transported air masses, mostly from Indo-Gangetic plain (IGP), the Thar desert, the semi-arid region, Nepal, and local areas, considerably influence PM concentrations and chemical composition over the pristine Himalayan altitudes. The study implies that to improve the air quality in booming urban areas, it is necessary to pay attention to both local emission sources and meteorological conditions.
英文关键词	Carbonaceous aerosols Particulate matter Indian Himalayan region Secondary organic aerosol
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000986324100001
WOS关键词	CHINA INSIGHTS ; CLIMATE ; URBAN ; HAZE ; REGION ; IMPACT ; WINTER
WOS类目	Instruments & Instrumentation ; Physics, Applied
WOS研究方向	Instruments & Instrumentation ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397804
推荐引用方式 GB/T 7714	Choudhary, Nikki,Kuniyal, Jagdish Chandra,Lata, Renu,et al. Fine Mode Carbonaceous Aerosols of PM2.5 Over the High-Altitude Stations of the Indian Himalayas[J],2023,38(3):771-778.
APA	Choudhary, Nikki.,Kuniyal, Jagdish Chandra.,Lata, Renu.,Dutta, Monami.,Rai, Akansha.,...&Sharma, Sudhir Kumar.(2023).Fine Mode Carbonaceous Aerosols of PM2.5 Over the High-Altitude Stations of the Indian Himalayas.MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA,38(3),771-778.
MLA	Choudhary, Nikki,et al."Fine Mode Carbonaceous Aerosols of PM2.5 Over the High-Altitude Stations of the Indian Himalayas".MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA 38.3(2023):771-778.