Chaithanya D. Jain 1, Harish S. Gadhavi1, Tushar Wankhede1, Kanakaraju Kallelapu1, Suryasree Sudhesh2, Lidiya N. Das2, Rahul U. Pai2, Achuthan Jayaraman1


National Atmospheric Research Laboratory (NARL), DoS, Government of India, Gadanki A.P. 517112, India
M.G. University Kottayam, Kerala 686560, India



Received: March 22, 2017
Revised: September 25, 2017
Accepted: November 5, 2017
Download Citation: ||https://doi.org/10.4209/aaqr.2017.03.0102 

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Cite this article:
Jain, C.D., Gadhavi, H.S., Wankhede, T., Kallelapu, K., Sudhesh, S., Das, L.N., Pai, R.U. and Jayaraman, A. (2018). Spectral Properties of Black Carbon Produced during Biomass Burning. Aerosol Air Qual. Res. 18: 671-679. https://doi.org/10.4209/aaqr.2017.03.0102


HIGHLIGHTS

  • Spectral properties of BC produced during different biofuel burning are studied.
  • Biofuel sample selection was upon a survey.
  • Aerosol Absorption Coefficient (α) calculated found to be ranging from 1.2–2.1.
  • Fast and slow burning biofuels have shown low and high α values respectively.

ABSTRACT


Spectral properties of Black Carbon (BC) produced during the burning of different biofuels have been studied using a 7 channel Aethalometer (Magee Scientific, USA). Different biofuels used for household purpose in the rural regions were selected after a survey conducted in Gadanki, A.P. – a typical village in South India. Biofuels were burnt in a custom made burning chamber and BC produced has been allowed to mix with ambient air and measured using Aethalometer kept 4 meters away from the burning chamber. The observed absorption coefficient spectra have been characterized by fitting to a power-law equation. The power co-efficient (α) values found to be ranging from 1.2–2.1 for different biofuels. It has been observed that the α values are related to the speed of burning; fast burning biofuels shown low values, whereas slow burning biofuels have shown higher values.


Keywords: Black carbon; Aethalometer; Biofuels; Spectral properties; Angstrom exponent.

 



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