Characteristics of Particulate-Phase Polycyclic Aromatic Hydrocarbons (PAHs) in the Atmosphere over the Central Himalayas

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Characteristics of Particulate-Phase Polycyclic Aromatic Hydrocarbons (PAHs) in the Atmosphere over the Central Himalayas
	Chen, Pengfei; Li, Chaoliu; Kang, Shichang; Rupakheti, Maheswar; Panday, Arnico K.; Yan, Fangping; Li, Quanlian; Zhang, Qianggong; Guo, Junming; Ji, Zhenming
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2017-12-01
卷号	17 期号:12 页码:2942-2954
关键词	Polycyclic Aromatic Hydrocarbons Total Suspended Particles Source Himalayas
英文摘要	PAH concentrations were measured in total suspended particle (TSP) samples collected from six sites along two south-north transects across the central Himalayas from April 2013 to March 2014. The annual average TSP and PAH (especially 5 and 6-ring compounds) concentrations were found to decrease noticeably northwards along both transects. At rural and urban sites, the TSP and PAH concentrations showed clear seasonal variations, with the lower concentrations around the mid-monsoon season and the higher values in the winter season. Meanwhile, at the remote sites (e.g., Nyalam and Zhongba), these pollutants generally remained constant throughout the year but with relatively higher levels during the pre-monsoon season. Both IndP/(IndP + BghiP) and Fla/(Fla + Pyr) ratios suggested that atmospheric PAHs from urban and rural sites were mainly associated with emissions from biomass burning, coal burning and petroleum combustion. However, the contribution of biomass burning increased at remote sites. Similar compositions of PAHs were found at three remote sites located on both sides of the Himalayas (Jomsom, Zhongba, and Nyalam), suggesting that the northern side of the Himalayas may be affected by anthropogenic emissions from the Indo-Gangetic Plain (IGP) via long-range atmospheric transport. This work provides a database of PAHs in central Himalayas for further assessing environmental risk of air pollution in the remote regions.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/38966]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Chen, Pengfei,Li, Chaoliu,Kang, Shichang,et al. Characteristics of Particulate-Phase Polycyclic Aromatic Hydrocarbons (PAHs) in the Atmosphere over the Central Himalayas[J]. AEROSOL AND AIR QUALITY RESEARCH,2017,17(12):2942-2954.
APA	Chen, Pengfei.,Li, Chaoliu.,Kang, Shichang.,Rupakheti, Maheswar.,Panday, Arnico K..,...&Luo, Wei.(2017).Characteristics of Particulate-Phase Polycyclic Aromatic Hydrocarbons (PAHs) in the Atmosphere over the Central Himalayas.AEROSOL AND AIR QUALITY RESEARCH,17(12),2942-2954.
MLA	Chen, Pengfei,et al."Characteristics of Particulate-Phase Polycyclic Aromatic Hydrocarbons (PAHs) in the Atmosphere over the Central Himalayas".AEROSOL AND AIR QUALITY RESEARCH 17.12(2017):2942-2954.