Characteristics and Sources of Carbonaceous Aerosols in PM2.5 during Wintertime in Agra, India

PM2.5 samples were collected at traffic, rural and campus sites in Agra during Nov 2010 to Feb 2011 and characterized for carbonaceous aerosols. The average mass concentrations of PM2.5 were 308.3 ± 51.8 μg/m3, 91.2 ± 17.3 μg/m3 and 140.8 ± 22.3 μg/m3 at the traffic, rural and campus sites, respectively. The 24-h mass concentrations of PM2.5 were significantly higher than the limit of 60 μg/m3 prescribed in the National Ambient Air Quality Standards (Indian NAAQS) and 25 μg/m3 of those of the WHO (World Health Organization). The average concentrations of OC (organic carbon) and EC (elemental carbon) were 86.1 ± 5.2 and 19.4 ± 2.4 at the traffic site, 30.3 ± 12.9 and 4.0 ± 1.5 at the rural site and 44.5 ± 18.5 μg/m3 5.0 ± 1.4 μg/m3 at the campus one. The contributions of TCA (Total Carbonaceous Aerosol) at the traffic, campus and rural sites were found to be 52, 54 and 58% of PM2.5 mass, respectively. A significant correlation was observed between water soluble K+ and OC at the rural (R2 = 0.63) and campus (R2 = 0.53) sites compared to the traffic one (R2 = 0.35). This may be attributed to increased biomass burning emissions at the rural and campus sites. The concentrations of SOC (Secondary Organic Carbon) were estimated based on the minimum OC/EC ratio, and were found to be 15.3 ± 6.3, 8.2 ± 5.8 and 28.8 ± 15.8 μg/m3, accounting for 18, 24.7 and 60.7% of total OC at the traffic, rural and campus sites, respectively. The surface morphology of the particles was analyzed by scanning electron microscopy and energy- dispersive X-ray spectroscopy (SEM/EDX). The results indicated branched chain-like aggregates of carbon bearing spheres at the traffic and rural sites, while at the campus site carbon-rich and minerogenic (mineral dust) particles were the dominant ones.

[1]  K. Sachdeva,et al.  Morphological characterization of carbonaceous aggregates in soot and free fall aerosol samples , 2008 .

[2]  Ian D. Williams,et al.  Characterisation of airborne particles in London by computer-controlled scanning electron microscopy , 1999 .

[3]  R. Rengarajan,et al.  Carbonaceous and inorganic species in atmospheric aerosols during wintertime over urban and high‐altitude sites in North India , 2007 .

[4]  L. Chen,et al.  Summary of Organic and Elemental Carbon/Black Carbon Analysis Methods and Intercomparisons , 2005 .

[5]  Z. Bai,et al.  Characteristics of organic and elemental carbon in atmospheric fine particles in Tianjin, China , 2009 .

[6]  Gan Zhang,et al.  Seasonal variations and chemical characteristics of PM(2.5) in Wuhan, central China. , 2015, The Science of the total environment.

[7]  J. Hansen,et al.  Global warming in the twenty-first century: an alternative scenario. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[8]  Jun Li,et al.  Characteristics of organic and elemental carbon in PM2.5 samples in Shanghai, China , 2009 .

[9]  P. S. Praveen,et al.  Brown Clouds over South Asia: Biomass or Fossil Fuel Combustion? , 2009, Science.

[10]  C. Venkataraman,et al.  Inventory of aerosol and sulphur dioxide emissions from India. Part II—biomass combustion , 2002 .

[11]  M. Deb,et al.  Water-soluble ionic composition of PM2.5–10 and PM2.5 aerosols in the lower troposphere of an industrial city Raipur, the eastern central India , 2013, Air Quality, Atmosphere & Health.

[12]  L. Shao,et al.  Microscopy and mineralogy of airborne particles collected during severe dust storm episodes in Beijing, China , 2005 .

[13]  M. Sarin,et al.  Day–night variability of EC, OC, WSOC and inorganic ions in urban environment of Indo-Gangetic Plain: Implications to secondary aerosol formation , 2011 .

[14]  A. Agarwal,et al.  Measurements of atmospheric parameters during Indian Space Research Organization Geosphere Biosphere Program Land Campaign II at a typical location in the Ganga Basin: 2. Chemical properties: AEROSOL CHEMISTRY IN IG BASIN , 2006 .

[15]  P. Rao,et al.  Source characterization for aerosol constituents and changing roles of calcium and ammonium aerosols in the neutralization of aerosol acidity at a semi-urban site in SW India , 2010 .

[16]  Roy M. Harrison,et al.  Carbonaceous aerosol in urban and rural European atmospheres: estimation of secondary organic carbon concentrations , 1999 .

[17]  L. Shao,et al.  Characterization of airborne individual particles collected in an urban area, a satellite city and a clean air area in Beijing, 2001 , 2003 .

[18]  Aerosol Size Distribution and Seasonal Variation in an Urban Area of an Industrial City in Central India , 2012, Bulletin of Environmental Contamination and Toxicology.

[19]  J. Sarnat,et al.  Seasonal and spatial trends in the sources of fine particle organic carbon in Israel, Jordan, and Palestine , 2010 .

[20]  R. Rengarajan,et al.  Wintertime PM2.5 and PM10 carbonaceous and inorganic constituents from urban site in western India , 2011 .

[21]  Judith C. Chow,et al.  Spatial and seasonal distributions of carbonaceous aerosols over China , 2007 .

[22]  Junji Cao,et al.  Characteristics of carbonaceous aerosol in PM2.5: Pearl Delta River Region, China , 2012 .

[23]  J. Chow,et al.  Distribution and origin of carbonaceous aerosol over a rural high-mountain lake area, Northern China and its transport significance , 2008 .

[24]  A. Bouwman,et al.  Emission database for global atmospheric research (Edgar) , 1994, Environmental monitoring and assessment.

[25]  Kebin He,et al.  The characteristics of PM2.5 in Beijing, China , 2001 .

[26]  A. Bouwman,et al.  Emission database for global atmospheric research (Edgar) , 1994, Environmental monitoring and assessment.

[27]  Chandra Venkataraman,et al.  Anthropogenic sulphate aerosol from India: estimates of burden and direct radiative forcing , 1999 .

[28]  M. Sarin,et al.  Carbonaceous aerosols in MABL of Bay of Bengal: Influence of continental outflow , 2008 .

[29]  W. Ye,et al.  MORPHOLOGY OF BLACK CARBON AEROSOLS AND UBIQUITY OF 50-NANOMETER BLACK CARBON AEROSOLS IN THE ATMOSPHERE , 2006 .

[30]  R. Griffin,et al.  Characteristics and Sources of Carbonaceous, Ionic, and Isotopic Species of Wintertime Atmospheric Aerosols in Kathmandu Valley, Nepal , 2010 .

[31]  B. Turpin,et al.  Identification of secondary organic aerosol episodes and quantitation of primary and secondary organic aerosol concentrations during SCAQS , 1995 .

[32]  P. Buseck,et al.  Individual aerosol particles from biomass burning in southern Africa: 1. Compositions and size distributions of carbonaceous particles , 2003 .

[33]  L. Frazer,et al.  Seeing through soot. , 2002, Environmental health perspectives.

[34]  P. Hopke,et al.  Seasonal Characteristics of Water-Soluble Dicarboxylates Associated with PM10 in the Urban Atmosphere of Durg City, India , 2012 .

[35]  M. Sarin,et al.  Spatio-temporal variability in atmospheric abundances of EC, OC and WSOC over Northern India , 2010 .

[36]  M. Sarin,et al.  Atmospheric abundances of primary and secondary carbonaceous species at two high-altitude sites in India : Sources and temporal variability , 2008 .

[37]  P. Buseck,et al.  Individual aerosol particles from biomass burning in southern Africa: 2, Compositions and aging of inorganic particles , 2003 .

[38]  S. M. Hsu,et al.  Major chemical components , 1995 .

[39]  P. Butelli,et al.  Major chemical components of PM2.5 in Milan (Italy) , 2005 .

[40]  K. M. Kumari,et al.  Organic and elemental carbon aerosols at a suburban site , 2012 .

[41]  M. Andreae.  Soot Carbon and Excess Fine Potassium: Long-Range Transport of Combustion-Derived Aerosols , 1983, Science.

[42]  Judith C. Chow,et al.  Descriptive analysis of PM2.5 and PM10 at regionally representative locations during SJVAQS/AUSPEX , 1996 .

[43]  G C Fang,et al.  Characterization of chemical species in PM2.5 and PM10 aerosols in suburban and rural sites of central Taiwan. , 1999, The Science of the total environment.

[44]  Rajasekhar Balasubramanian,et al.  Chemical characteristics of fine particles emitted from different gas cooking methods , 2008 .

[45]  M. Shao,et al.  Source profiles of particulate organic matters emitted from cereal straw burnings. , 2007, Journal of environmental sciences.

[46]  A. K. Sudheer,et al.  Influence of continental outflow on aerosol chemical characteristics over the Arabian Sea during winter , 2012 .

[47]  M. Deb,et al.  Size distribution and seasonal variation of size-segregated particulate matter in the ambient air of Raipur city, India , 2013, Air Quality, Atmosphere & Health.

[48]  Sung-Yong Cho,et al.  Tracking sources and behaviors of water-soluble organic carbon in fine particulate matter measured at an urban site in Korea , 2011 .

[49]  M. Jacobson,et al.  Strong radiative heating due to the mixing state of black carbon in atmospheric aerosols , 2022 .

[50]  T. Kirchstetter,et al.  Carbonaceous aerosols over the Indian Ocean during the Indian Ocean Experiment (INDOEX): Chemical characterization, optical properties, and probable sources , 2002 .

[51]  Lawrence E Murr,et al.  'Electron Microscope Comparisons of Fine and Ultra-Fine Carbonaceous and Non-Carbonaceous, Airborne Particulates', with J. J. Bang, Atmospheric Environment, 23, - , 2003 .

[52]  Judith C. Chow,et al.  Characteristics of carbonaceous aerosol in Pearl River Delta Region, China during 2001 winter period , 2003 .

[53]  O. Boucher,et al.  Estimates of the direct and indirect radiative forcing due to tropospheric aerosols: A review , 2000 .

[54]  Y. Tsai,et al.  Characterization of Dicarboxylates and Inorganic Ions in Urban PM10 Aerosols in the Eastern Central India , 2012 .

[55]  Y. Tsai,et al.  Characteristics and Sources of Water-Soluble Ionic Species Associated with PM10 Particles in the Ambient Air of Central India , 2012, Bulletin of Environmental Contamination and Toxicology.

[56]  S. Tripathi,et al.  A 1 year record of carbonaceous aerosols from an urban site in the Indo‐Gangetic Plain: Characterization, sources, and temporal variability , 2010 .

[57]  Prabha R. Nair,et al.  Wintertime aerosol characteristics over the Indo‐Gangetic Plain (IGP): Impacts of local boundary layer processes and long‐range transport , 2007 .

[58]  J. Kiehl,et al.  Atmospheric brown clouds: impacts on South Asian climate and hydrological cycle. , 2005, Proceedings of the National Academy of Sciences of the United States of America.

[59]  Rajasekhar Balasubramanian,et al.  Comprehensive characterization of PM2.5 aerosols in Singapore , 2003 .

[60]  Yuesi Wang,et al.  Characteristics and sources of PM2.5 and carbonaceous species during winter in Taiyuan, China , 2007 .

[61]  C. Venkataraman,et al.  Inventory of aerosol and sulphur dioxide emissions from India: I—Fossil fuel combustion , 2002 .

[62]  Peter R. Buseck,et al.  Nature and climate effects of individual tropospheric aerosol particles , 2010 .

[63]  Longyi Shao,et al.  Size, composition, and mixing state of individual aerosol particles in a South China coastal city. , 2010, Journal of environmental sciences.

[64]  K. M. Kumari,et al.  Comparison of BTX Profiles and Their Mutagenicity Assessment at Two Sites of Agra, India , 2012, TheScientificWorldJournal.

[65]  Michael H. Bergin,et al.  Measurement of aerosol chemical, physical and radiative properties in the Yangtze delta region of China , 2002 .

[66]  Yanli Feng,et al.  Measurements of emission factors for primary carbonaceous particles from residential raw‐coal combustion in China , 2006 .

[67]  L. Murr,et al.  Collection and characterization of airborne nanoparticulates , 2004 .

[68]  S. Pandis,et al.  Evaluation of secondary organic aerosol formation in winter , 1999 .

[69]  A. Agarwal,et al.  Measurements of atmospheric parameters during Indian Space Research Organization Geosphere Biosphere Programme Land Campaign II at a typical location in the Ganga basin: 1. Physical and optical properties , 2006 .

[70]  Atar Singh Pipal,et al.  Characterization and morphological analysis of airborne PM2.5 and PM10 in Agra located in north central India , 2011 .

[71]  R. S. Parmar,et al.  Study of size distribution of atmospheric aerosol at Agra , 2001 .

[72]  Y. Tsai,et al.  Water Soluble Ions in PM2.5 and PM1 Aerosols in Durg City, Chhattisgarh, India , 2011 .

[73]  J. Chow,et al.  Characterization of chemical species in PM2.5 and PM10 aerosols in Hong kong , 2003 .

[74]  Jinsheng Chen,et al.  Pollution characteristics of organic and elemental carbon in PM2.5 in Xiamen, China. , 2011, Journal of environmental sciences.

[75]  C. Venkataraman,et al.  Aerosol size and chemical characteristics at Mumbai,India, during the INDOEX-IFP (1999) , 2002 .

[76]  Barbara J. Turpin,et al.  Species Contributions to PM2.5 Mass Concentrations: Revisiting Common Assumptions for Estimating Organic Mass , 2001 .

[77]  J. Chow,et al.  Variability of organic and elemental carbon, water soluble organic carbon, and isotopes in Hong Kong , 2006 .

[78]  Hairong Tao,et al.  The characteristics of carbonaceous species and their sources in PM2.5 in Beijing , 2004 .

[79]  K. M. Kumari,et al.  Carbonaceous aerosols at a suburban site in Indo-Gangetic plain , 2010 .

[80]  E. Edgerton,et al.  Measurements of OC and EC in Coarse Particulate Matter in the Southeastern United States , 2009, Journal of the Air & Waste Management Association.

[81]  Xiaoqiu Chen,et al.  Seasonal variations and chemical compositions of PM2.5 aerosol in the urban area of Fuzhou, China , 2012 .

[82]  M. Noguer,et al.  Climate change 2001: The scientific basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change , 2002 .

[83]  W. Nie,et al.  Airborne fine particulate pollution in Jinan, China: Concentrations, chemical compositions and influence on visibility impairment , 2012 .

[84]  Jing-chun Duan,et al.  Sources and characteristics of carbonaceous aerosol in two largest cities in Pearl River Delta Region, China , 2007 .

[85]  Chandra Venkataraman,et al.  Atmospheric optical and radiative effects of anthropogenic aerosol constituents from India , 2000 .

[86]  James J. Schauer,et al.  Chemical characterization and source apportionment of fine and coarse particulate matter in Lahore, Pakistan , 2010 .

[87]  Shi-chang Kang,et al.  Individual Particle Analysis of Atmospheric Aerosols at Nam Co, Tibetan Plateau , 2009 .

[88]  H. Hansson,et al.  Organic atmospheric aerosols: Review and state of the science , 2000 .

[89]  L. Bounoua,et al.  Ambient air pollution by aromatic hydrocarbons in Algiers , 2006 .

[90]  Michael J Kleeman,et al.  Measurement of emissions from air pollution sources. 5. C1-C32 organic compounds from gasoline-powered motor vehicles. , 2002, Environmental science & technology.

[91]  Judith C. Chow,et al.  Morphological and Elemental Classification of Freshly Emitted Soot Particles and Atmospheric Ultrafine Particles using the TEM/EDS , 2010 .