干旱区生态环境知识资源中心(Arid): Spatial and temporal variability in concentration and characteristics of aerosols at Visakhapatnam (east) and Goa (west) coasts of India

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DOI	10.1007/s11356-019-06784-6
	Spatial and temporal variability in concentration and characteristics of aerosols at Visakhapatnam (east) and Goa (west) coasts of India
	Yadav, K.; Sarma, V. V. S. S.; Kumar, M. Dileep
通讯作者	Sarma, V. V. S. S.
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2020
卷号	27 期号:1 页码:532-546
英文摘要	Knowledge on the variability in quantity and compositions of various size groups of aerosols is important to understand their sources and their role in biogeochemical and climate processes. Here, we studied total suspended particles (TSP), PM10 and PM2.5 for their quantitative and water soluble compositional (F-, Cl-, SO42-, NO3-, NH4+, Na+, K+, Ca2+, and Mg2+) distributions, and to understand their nature and potential sources at Goa and Visakhapatnam on the west and east coasts, respectively, of India. While the mean concentrations of TSP were found to be 117 +/- 44 and 85 +/- 51 mu g/m(3) its maximal levels occurred in spring intermonsoon (SIM; 141 +/- 52) and winter monsoon (WM; 155 +/- 145 mu g/m(3)) seasons at Goa and Visakhapatnam, respectively. PM10 and PM2.5 exhibited higher ranges at Visakhapatnam than Goa. The increase in PM2.5 abundance from WM to SIM at Visakhapatnam seems to occur in coincidence with decrease in TSP favored by topography and ambient meteorological conditions. Locally released and seasonally transported (from land and sea) constituents contributed to the observed variability in aerosol compositions. Sulphate dominated the aerosol composition at both Goa (57-64%) and Visakhapatnam (43-55%) followed by NO3- (5-16% and 6-18%, respectively) where the former component was higher in PM10 and PM2.5. The NO3- was more in TSP. Relations between SO42- and NH4+ suggested possible presence of NH4HSO4. Examination of ionic ratios and balance suggested near neutrality in PM10 and PM2.5 while TSP was acidic at the both locations. Notable relations between Ca2+ and NO3-, particularly in PM10 at Goa, indicated their release from mining related activities.
英文关键词	Aerosols TSP PM10 PM2 5 Water soluble ionic species Goa Visakhapatnam India
类型	Article
语种	英语
国家	India
收录类别	SCI-E
WOS记录号	WOS:000500294800001
WOS关键词	ATMOSPHERIC DRY DEPOSITION ; SEMIARID RURAL SITE ; DESERT DUST ; BAY ; BENGAL ; SEA ; NITROGEN ; CLIMATE ; IMPACT ; WATER
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-04
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311569
作者单位	CSIR Natl Inst Oceanog, Reg Ctr, 176 Lawsons Bay Colony, Visakhapatnam, Andhra Pradesh, India
推荐引用方式 GB/T 7714	Yadav, K.,Sarma, V. V. S. S.,Kumar, M. Dileep. Spatial and temporal variability in concentration and characteristics of aerosols at Visakhapatnam (east) and Goa (west) coasts of India[J],2020,27(1):532-546.
APA	Yadav, K.,Sarma, V. V. S. S.,&Kumar, M. Dileep.(2020).Spatial and temporal variability in concentration and characteristics of aerosols at Visakhapatnam (east) and Goa (west) coasts of India.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(1),532-546.
MLA	Yadav, K.,et al."Spatial and temporal variability in concentration and characteristics of aerosols at Visakhapatnam (east) and Goa (west) coasts of India".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.1(2020):532-546.