Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2016.10.005 |
Water soluble inorganic species of PM10 and PM2.5 at an urban site of Delhi, India: Seasonal variability and sources | |
Saxena, Mohit1; Sharma, A.1; Sen, A.1; Saxena, Priyanka2; Saraswati1; Mandal, T. K.1; Sharma, S. K.1; Sharma, C.1 | |
2017-02-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 184 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | Comprehensive data of 2 years (2013-2014) of water soluble inorganic species (WSIS) in the particulate matter (PM10: mean: 233.0 +/- 124.6 mu g m(-3) and PM2.5: mean: 108.0 +/- 86.5 mu g m(-3)) have been used to study seasonal effect on the variation of total WSIS concentration, composition variability of inorganic aerosols and extent to which secondary formation of sulfate and nitrate aerosol occurred from their precursor gases. Mean concentrations of total WSIS in PM10 and PM2.5 were 82.12 +/- 72.15 mu g m(-3) and 54.03 +/- 49.22 mu g m(-3), respectively during the study period. Concentrations of total WSIS (PM10: 140.11 +/- 90.67 mu g m(-3); PM2.5: 74.41 +/- 47.55 mu g m(-3)) during winter season was recorded higher than summer, monsoon and spring seasons. Significant correlation (p < 0.01) between NH4+ and Cl-, SO42-, NO3- in PM10 and PM2.5, respectively indicates NH4 as the major cation species for the neutralization of acidic components in the winter season. On the contrary, in summer season Ca2+, Mg2+, Na+ and K+ were the alkaline species responsible for the neutralization of acidic components in the PM10 samples. Principal Component Analysis (PCA) showed that secondary aerosol, biomass burning and soil driven dust were the possible sources that explained similar to 70% of the total variance. Cluster analysis and Concentration Weighted Trajectory (CWT) analysis for different season depicts the advection of air masses over the continental landmasses of Afghanistan (summer season), northwestern region of Pakistan (summer and winter season), marine region (monsoon season) and adjoining states of Delhi. These air masses from different regions could be the cause of an increase in PM10, and PM2.5 aerosol over the study site. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Particulate matter Water soluble inorganic species PCA Cluster analysis CWT analysis |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000390499100011 |
WOS关键词 | SUSPENDED PARTICULATE MATTER ; GANGETIC PLAIN IGP ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; BIOMASS FUELS ; ATMOSPHERIC AEROSOLS ; POLLUTION AEROSOLS ; SIZE DISTRIBUTION ; SUMMERTIME PM2.5 ; ION CHEMISTRY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38339 |
专题 | 地球科学 |
作者单位 | 1.CSIR, Natl Phys Lab, Dr KS Krishnan Rd, New Delhi 110012, India; 2.CSIR, Natl Environm Engn Res Inst DZL, New Delhi 110028, India |
推荐引用方式 GB/T 7714 | Saxena, Mohit,Sharma, A.,Sen, A.,et al. Water soluble inorganic species of PM10 and PM2.5 at an urban site of Delhi, India: Seasonal variability and sources[J]. ATMOSPHERIC RESEARCH,2017,184. |
APA | Saxena, Mohit.,Sharma, A..,Sen, A..,Saxena, Priyanka.,Saraswati.,...&Sharma, C..(2017).Water soluble inorganic species of PM10 and PM2.5 at an urban site of Delhi, India: Seasonal variability and sources.ATMOSPHERIC RESEARCH,184. |
MLA | Saxena, Mohit,et al."Water soluble inorganic species of PM10 and PM2.5 at an urban site of Delhi, India: Seasonal variability and sources".ATMOSPHERIC RESEARCH 184(2017). |
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