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DOI	10.1016/j.jenvman.2021.112904
	Concentrations, transport characteristics, and health risks of PM2.5-bound trace elements over a national park in central India
	Nirmalkar, Jayant; Haswani, Diksha; Singh, Akanksha; Kumar, Samresh; Raman, Ramya Sunder
通讯作者	Raman, RS (corresponding author), Indian Inst Sci Educ & Res Bhopal, Ctr Res Environm & Sustainable Technol, Bhopal, India.
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2021
卷号	293
英文摘要	Fine particulate matter (PM2.5) mass and its chemical constituents were measured over Van Vihar National Park (VVNP) in Bhopal, central India. Fine PM collected over two years onto Teflon filters using a Mini-Vol (R) sampler were analyzed for trace elements using an Energy Dispersive X-ray fluorescence (ED-XRF) spectrometer. The temporal behaviour, dry deposition fluxes and transport pathways of elements, in addition to their health risks were examined in this study. S, K, Si, Al, Ca, and Fe accounted for most of the PM2.5-bound trace elements (similar to 88% on average). Pronounced seasonality was observed for major elements (S, K, and Cl) and reconstructed soil (estimated as the sum of oxides of crustal elements, i.e., Si, Al, Ca, Fe, and Ti), with winter and post-monsoon season highs, potentially due to source strengths and favourable metrology during these seasons. The synoptic meteorology during these seasons favoured the fetch of particles from highly polluted regions such as the IndoGangetic Plain. The estimated average dry depositional flux of each element in this study was comparable to those measured/estimated for each of these species over other urban areas. The sum of the dry deposition flux for crustal elements (1301.9 +/- 880.7 mu g m(-2) d (-1)) was in agreement with global dust cycle models. Air-parcel trajectory cluster analysis revealed that S, K, and Cl were influenced by biomass and coal burning in predominantly in central, and northwestern India, while reconstructed soil was influenced by air masses from the Arabian and Thar deserts. Finally, human exposure risk assessment to carcinogens (As, Cr, Cd, Pb and Ni) and noncarcinogens (Cu, Zn, Mn, V, Hg, Se and Al) revealed that no significant risk was posed by these elements. The assessment in this study was a screening for severe adverse effects, rather than a speciated health assessment. Thus, over the study region, monitoring, health risk assessment and mitigation measures, where needed, must be enhanced to ensure that trace elements induced health effects continue to be within safe levels.
英文关键词	PM2.5-bound trace elements Seasonality Dry deposition fluxes Trajectory clusters Health effects
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000677850200007
WOS关键词	DRY DEPOSITION FLUXES ; HEAVY-METALS ; ATMOSPHERIC DEPOSITION ; SOURCE APPORTIONMENT ; PARTICULATE MATTER ; SOURCE PROFILES ; PARTICLE-SIZE ; ARABIAN DUST ; ROAD DUST ; PM2.5
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363845
作者单位	[Nirmalkar, Jayant; Raman, Ramya Sunder] Indian Indstitute Sci Educ & Res Bhopal, Ctr Res Environm & Sustainable Technol, Bhopal, India; [Haswani, Diksha; Singh, Akanksha; Kumar, Samresh; Raman, Ramya Sunder] Indian Inst Sci Educ & Res Bhopal, Earth & Environm Sci, Bhopal 462066, India
推荐引用方式 GB/T 7714	Nirmalkar, Jayant,Haswani, Diksha,Singh, Akanksha,et al. Concentrations, transport characteristics, and health risks of PM2.5-bound trace elements over a national park in central India[J],2021,293.
APA	Nirmalkar, Jayant,Haswani, Diksha,Singh, Akanksha,Kumar, Samresh,&Raman, Ramya Sunder.(2021).Concentrations, transport characteristics, and health risks of PM2.5-bound trace elements over a national park in central India.JOURNAL OF ENVIRONMENTAL MANAGEMENT,293.
MLA	Nirmalkar, Jayant,et al."Concentrations, transport characteristics, and health risks of PM2.5-bound trace elements over a national park in central India".JOURNAL OF ENVIRONMENTAL MANAGEMENT 293(2021).