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Aerosol Science and Engineering

, Volume 2, Issue 4, pp 153–164 | Cite as

OM/OC Ratio of Polar and Non-Polar Organic Matter during Wintertime from Indo-Gangetic Plain: Implications to Regional-Scale Radiative Forcing

  • Prashant RajputEmail author
Original Paper

Abstract

Ambient PM2.5 (particulate matter with aerodynamic diameter ≤ 2.5 μm) samples have been collected in two winter campaigns: I during 2nd December 2008‒27th February 2009 (n = 24) and II during 3rd December 2010‒11th February 2011 (n = 15). The PM2.5 mass varied significantly from 35 to 220 and 80 to 244 μg m−3 during I and II campaigns, respectively. Based on similar inter-annual variability (statistical two-tailed t test) of PM2.5, K+/PM2.5 (0.010), EC/PM2.5 (0.04) and OC/EC (~ 6) ratio, it has been inferred that the strength of combustion sources, viz. biomass burning and fossil fuel combustion remained more or the less constant during I and II campaigns (OC: organic carbon; EC: elemental carbon). However, significant difference in OC/PM2.5 and WSOC/OC ratios between I and II campaigns indicated a significant change in organic aerosol composition attributable to fog processing vis-à-vis fog scavenging (WSOC: water-soluble organic carbon). The OM/OC (organic mass-to-organic carbon) ratio of polar and non-polar organics averaging at 2.0 and ~ 1.2 (and the overall OM/OC ratio at 1.7) look quite similar during both the campaigns. Principal component analysis (PCA) resolved total source contribution up to 81.4% of which ~ 64% was attributed to mixed contribution from biomass burning emission and secondary transformations, 25% of the resolved source fraction to fossil fuel combustion and 11% of the resolved source fraction to the mineral dust. These results have implications to better parameterization of organic aerosols in chemical transport model and accurate estimation of their influence on regional-scale radiative forcing.

Keywords

Organic aerosols OM/OC ratio Fog processing IGP 

Notes

Acknowledgements

I thank Prof. M. M. Sarin (Geosciences Division; Physical Research Laboratory, Ahmedabad, India) and ISRO-GBP office (Bengaluru, India) for supporting this study. I also thank, Prof. Darshan Singh and Dr. Deepti Sharma for support in aerosol collection and sampling logistics, and the Indian Meteorological Department (IMD; Punjabi University, Patiala in India) for providing the relevant meteorological parameters from the sampling site. Author thanks the reviewers for providing constructive comments and Prof. Junji Cao for editorial handling of this manuscript. PR is thankful to the Council of Scientific and Industrial Research (India) for providing CSIR-Senior Research Associate fellowship (CSIR-SRA Pool No # 8934-A/2017).

Compliance with Ethical Standards

Conflict of Interest

The author states that there is no conflict of interest.

Supplementary material

41810_2018_32_MOESM1_ESM.docx (172 kb)
Supplementary material 1 (DOCX 172 kb)

References

  1. Andreae MO (1983) Soot carbon and excess fine potassium: long-range transport of combustion-derived aerosols. Science 220:1148–1151CrossRefGoogle Scholar
  2. Birch ME, Cary RA (1996) Elemental carbon-based method for monitoring occupational exposures to particulate diesel exhaust. Aerosol Sci Technol 25:221–241CrossRefGoogle Scholar
  3. Cachier H, Bremond MP, Buat-MÉNard P (1989) Determination of atmospheric soot carbon with a simple thermal method. Tellus B 41B:379–390CrossRefGoogle Scholar
  4. Chakraborty A et al (2015) Real-time measurements of ambient aerosols in a polluted Indian city: sources, characteristics, and processing of organic aerosols during foggy and nonfoggy periods. J Geophys Res Atmos 120:9006–9019CrossRefGoogle Scholar
  5. Chakraborty A et al (2017) Water soluble organic aerosols in indo gangetic plain (IGP): insights from aerosol mass spectrometry. Sci Total Environ 599–600:1573–1582CrossRefGoogle Scholar
  6. Cheng Y et al (2013) Biomass burning contribution to Beijing aerosol. Atmos Chem Phys 13:7765–7781CrossRefGoogle Scholar
  7. Decesari S et al (2010) Chemical composition of PM10 and PM1 at the high-altitude Himalayan station Nepal Climate Observatory-Pyramid (NCO-P) (5079 m a.s.l.). Atmos Chem Phys 10:4583–4596CrossRefGoogle Scholar
  8. El-Zanan HS et al (2009) Analytical determination of the aerosol organic mass-to-organic carbon ratio. J Air Waste Manag Assoc 59:58–69CrossRefGoogle Scholar
  9. Gilardoni S et al (2014) Fog scavenging of organic and inorganic aerosol in the Po Valley. Atmos Chem Phys 14:6967–6981CrossRefGoogle Scholar
  10. Gupta PK et al (2004) Residue burning in rice-wheat cropping system: causes and implications. Curr Sci 87:1713–1717Google Scholar
  11. Gustafsson Ö et al (2009) Brown clouds over South Asia: biomass or fossil fuel combustion? Science 323:495–498CrossRefGoogle Scholar
  12. Ho KF, Lee SC, Chiu GMY (2002) Characterization of selected volatile organic compounds, polycyclic aromatic hydrocarbons and carbonyl compounds at a roadside monitoring station. Atmos Environ 36:57–65CrossRefGoogle Scholar
  13. Jackson JE (1991) A user’s guide to principal components. Wiley, Hoboken (ISBN 0-471-62267-2) CrossRefGoogle Scholar
  14. Japar SM et al (1984) Comparison of solvent extraction and thermal-optical carbon analysis methods: application to diesel vehicle exhaust aerosol. Environ Sci Technol 18:231–234CrossRefGoogle Scholar
  15. Kanakidou M et al (2005) Organic aerosol and global climate modelling: a review. Atmos Chem Phys 5:1053–1123CrossRefGoogle Scholar
  16. Kaul DS et al (2011) Secondary organic aerosol: a comparison between foggy and nonfoggy days. Environ Sci Technol 45:7307–7313CrossRefGoogle Scholar
  17. Kawamura K, Imai Y, Barrie LA (2005) Photochemical production and loss of organic acids in high Arctic aerosols during long-range transport and polar sunrise ozone depletion events. Atmos Environ 39:599–614CrossRefGoogle Scholar
  18. Kumar V, Goel A, Rajput P (2017) Compositional and surface characterization of HULIS by UV–Vis, FTIR, NMR and XPS: wintertime study in Northern India. Atmos Environ 164:468–475CrossRefGoogle Scholar
  19. Lathem TL et al (2013) Analysis of CCN activity of Arctic aerosol and Canadian biomass burning during summer 2008. Atmos Chem Phys 13:2735–2756CrossRefGoogle Scholar
  20. Lobert JM et al (1999) Global chlorine emissions from biomass burning: reactive chlorine emissions inventory. J Geophys Res: Atmos 104:8373–8389CrossRefGoogle Scholar
  21. Mallik C et al (2013) Variability in ozone and its precursors over the Bay of Bengal during post monsoon: transport and emission effects. J Geophys Res Atmos 118:10190–10209CrossRefGoogle Scholar
  22. Ming Y et al (2005) Direct radiative forcing of anthropogenic organic aerosol. J Geophys Res 110:D20208CrossRefGoogle Scholar
  23. Momin GA et al (1999) Atmospheric aerosol characteristic studies at Pune and Thiruvananthapuram during INDOEX programme-1998. Curr Sci 76:985–989Google Scholar
  24. Pathak RK, Wu WS, Wang T (2009) Summertime PM2.5 ionic species in four major cities of China: nitrate formation in an ammonia-deficient atmosphere. Atmos Chem Phys 9:1711–1722CrossRefGoogle Scholar
  25. Rajeev P, Rajput P, Gupta T (2016) Chemical characteristics of aerosol and rain water during an El-Niño and PDO influenced Indian summer monsoon. Atmos Environ 145:192–200CrossRefGoogle Scholar
  26. Rajput P, Sarin MM (2014) Polar and non-polar organic aerosols from large-scale agricultural-waste burning emissions in Northern India: implications to organic mass-to-organic carbon ratio. Chemosphere 103:74–79CrossRefGoogle Scholar
  27. Rajput P et al (2011) Atmospheric polycyclic aromatic hydrocarbons (PAHs) from post-harvest biomass burning emissions in the Indo-Gangetic Plain: isomer ratios and temporal trends. Atmos Environ 45:6732–6740CrossRefGoogle Scholar
  28. Rajput P, Sarin MM, Kundu SS (2013) Atmospheric particulate matter (PM2.5), EC, OC, WSOC and PAHs from NE-Himalaya: abundances and chemical characteristics. Atmos Pollut Res 4:214–221CrossRefGoogle Scholar
  29. Rajput P et al (2014a) Atmospheric polycyclic aromatic hydrocarbons and isomer ratios as tracers of biomass burning emissions in Northern India. Environ Sci Pollut Res 21:5724–5729CrossRefGoogle Scholar
  30. Rajput P et al (2014b) Characteristics and emission budget of carbonaceous species from post-harvest agricultural-waste burning in source region of the Indo-Gangetic Plain. Tellus-B.  https://doi.org/10.3402/tellusb.v66.21026 CrossRefGoogle Scholar
  31. Rajput P et al (2014c) Organic aerosols and inorganic species from post-harvest agricultural-waste burning emissions over northern India: impact on mass absorption efficiency of elemental carbon. Environ Sci Process Impacts 16:2371–2379CrossRefGoogle Scholar
  32. Rajput P, Gupta T, Kumar A (2016a) The diurnal variability of sulfate and nitrate aerosols during wintertime in the Indo-Gangetic Plain: implications for heterogeneous phase chemistry. RSC Adv 6:89879–89887CrossRefGoogle Scholar
  33. Rajput P et al (2016b) Chemical characterisation and source apportionment of PM1 during massive loading at an urban location in Indo-Gangetic Plain: impact of local sources and long-range transport. Tellus B 68:30659CrossRefGoogle Scholar
  34. Rajput P et al (2016c) Chapter 12 characteristics and emission budget of carbonaceous species from post-harvest agricultural-waste burning in source region of the Indo-Gangetic Plain. Air Quality. Apple Academic Press Inc, Canada, pp 243–266Google Scholar
  35. Rajput P, Anjum MH, Gupta T (2017) One year record of bioaerosols and particles concentration in Indo-Gangetic Plain: implications of biomass burning emissions to high-level of endotoxin exposure. Environ Pollut 224:98–106CrossRefGoogle Scholar
  36. Rajput P et al (2018) Chemical composition and source-apportionment of sub-micron particles during wintertime over Northern India: new insights on influence of fog-processing. Environ Pollut 233:81–91CrossRefGoogle Scholar
  37. Ram K, Sarin MM (2010) Spatio-temporal variability in atmospheric abundances of EC, OC and WSOC over Northern India. J Aerosol Sci 41:88–98CrossRefGoogle Scholar
  38. Ram K, Sarin MM, Hegde P (2010) Long-term record of aerosol optical properties and chemical composition from a high-altitude site (Manora Peak) in Central Himalaya. Atmos Chem Phys 10:11791–11803CrossRefGoogle Scholar
  39. Rastogi N et al (2016) Temporal variability of primary and secondary aerosols over northern India: Impact of biomass burning emissions. Atmos Environ 125:396–403CrossRefGoogle Scholar
  40. Rastogi N, Sarin MM (2005) Long-term characterization of ionic species in aerosols from urban and high-altitude sites in western India: role of mineral dust and anthropogenic sources. Atmos Environ 39:5541–5554CrossRefGoogle Scholar
  41. Rengarajan R, Sarin MM, Sudheer AK (2007) Carbonaceous and inorganic species in atmospheric aerosols during wintertime over urban and high-altitude sites in North India. J Geophys Res Atmos 112:D21307CrossRefGoogle Scholar
  42. Saxena P, Hildemann LM (1996) Water-soluble organics in atmospheric particles: a critical review of the literature and application of thermodynamics to identify candidate compounds. J Atmos Chem 24:57–109CrossRefGoogle Scholar
  43. Saxena P, Kulshrestha UC (2016) The impact of gasoline emission on plants—a review. Chem Ecol 32:378–405CrossRefGoogle Scholar
  44. Seinfeld JH, Pandis SN (2006) Atmospheric chemistry and physics—from air pollution to climate change, 2nd edn. Wiley, New YorkGoogle Scholar
  45. Singh DK, Gupta T (2016) Effect through inhalation on human health of PM1 bound polycyclic aromatic hydrocarbons collected from foggy days in northern part of India. J Hazard Mater 306:257–268CrossRefGoogle Scholar
  46. Singh A et al (2014) Black carbon and elemental carbon from postharvest agricultural-waste burning emissions in the Indo-Gangetic Plain. Adv Meteorol 2014:10Google Scholar
  47. Sinha PR et al (2013) Seasonal variation of surface and vertical profile of aerosol properties over a tropical urban station Hyderabad, India. J Geophys Res Atmos 118:749–768CrossRefGoogle Scholar
  48. Srivastava R, Ramachandran S (2013) The mixing state of aerosols over the Indo-Gangetic Plain and its impact on radiative forcing. Q J R Meteorol Soc 139:137–151CrossRefGoogle Scholar
  49. Stein AF et al (2015) NOAA’s HYSPLIT atmospheric transport and dispersion modeling system. Bull Am Meteor Soc 96:2059–2077CrossRefGoogle Scholar
  50. Turpin BJ, Lim H-J (2001) Species contributions to PM2.5 mass concentrations: revisiting common assumptions for estimating organic mass. Aerosol Sci Technol 35:602–610CrossRefGoogle Scholar
  51. Weber RJ et al (2007) A study of secondary organic aerosol formation in the anthropogenic-influenced southeastern United States. J Geophys Res Atmos 112:D13302CrossRefGoogle Scholar
  52. Wu R et al (2017) PM2.5 characteristics in Qingdao and across coastal cities in China. Atmosphere 8:1–19Google Scholar

Copyright information

© Institute of Earth Environment, Chinese Academy Sciences 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringIndian Institute of TechnologyKanpurIndia

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