Arid
DOI10.1016/j.jseaes.2011.07.016
Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India
Balakrishnaiah, G.1; Kumar, K. Raghavendra1; Reddy, B. Suresh Kumar1; Swamulu, C.1; Gopal, K. Rama1; Reddy, R. R.1; Reddy, L. S. S.1; Ahammed, Y. Nazeer2; Narasimhulu, K.3; KrishnaMoorthy, K.4; Babu, S. Suresh4
通讯作者Reddy, R. R.
来源期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
出版年2011
卷号42期号:6页码:1297-1308
英文摘要

Collocated measurements of black carbon (BC) and composite aerosol mass concentrations were continuously monitored at Anantapur (14.62 degrees N, 77.65 degrees E, 331 m asl), a tropical semi-arid station in southeastern region of India, using Aethalometer and a ten-channel Quartz Crystal Microbalance (QCM) cascade impactor, respectively during August 2009-July 2010. Diurnal and seasonal variations of BC and near surface aerosols in relation to changes in the regional meteorological conditions, frequency distribution of BC for different seasons, week days and weekend days effect on BC concentration and size distributions of near surface aerosols were observed. Also, using the HYSPLIT model, back-trajectories were studied to assess the sources for transported particles. Diurnal variation of BC showed two peaks, one in the morning and another in the evening, which were mostly related to the daily changes in the local boundary layer. BC concentrations were maximum during the winter (4.76 +/- 0.97 mu g m(-3)), and minimum concentrations were observed in the monsoon (1.44 +/- 0.26 mu g m(-3)). The total mass concentration exhibits a high value in the summer (48.89 +/- 2.57 mu g m(-3)) and it remains low in the monsoon (30.33 +/- 1.65 mu g m(-3)) period. The maximum BC mass fraction was found to be 9.4% in the winter and a minimum of 4.6% in the monsoon. (C) 2011 Elsevier Ltd. All rights reserved.


英文关键词BC concentration Aerosol mass concentration Size-distribution Mass fraction HYSPLIT
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000296304800018
WOS关键词COASTAL STATION ; ATMOSPHERIC AEROSOLS ; SIZE DISTRIBUTION ; ABSORPTION ; SEA ; AETHALOMETER ; COEFFICIENT ; ENVIRONMENT ; INSTRUMENT ; PARTICLES
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/168974
作者单位1.Sri Krishnadevaraya Univ, Aerosol & Atmospher Res Lab, Dept Phys, Anantapur 515055, Andhra Pradesh, India;
2.Yogi Vemana Univ, Dept Phys, Kadapa 516003, Andhra Pradesh, India;
3.Govt First Grade Coll, Dept Phys, Bellary 583101, Karnataka, India;
4.Vikram Sarabhai Space Ctr, Space Phys Lab, Trivandrum 695022, Kerala, India
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GB/T 7714
Balakrishnaiah, G.,Kumar, K. Raghavendra,Reddy, B. Suresh Kumar,et al. Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India[J],2011,42(6):1297-1308.
APA Balakrishnaiah, G..,Kumar, K. Raghavendra.,Reddy, B. Suresh Kumar.,Swamulu, C..,Gopal, K. Rama.,...&Babu, S. Suresh.(2011).Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India.JOURNAL OF ASIAN EARTH SCIENCES,42(6),1297-1308.
MLA Balakrishnaiah, G.,et al."Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India".JOURNAL OF ASIAN EARTH SCIENCES 42.6(2011):1297-1308.
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