Vol. 10, Issue 12 (2021)

Author(s):
G Sivasankaran, RM Jayabalakrishnan, M Maheswari and R Kumaraperumal

Abstract:
The incomplete combustion of carbonaceous fuels generates the Black carbon aerosol particle, which concentration has measured by using the Aethalometer (AE-31 model) at high altitude region, Ooty. This study has analyzed the diurnal and monthly variation of Delta-C values for the Winter 2021. The average Delta-C value for the January, February was 0.003 and 0.04, respectively that indicates the relative dominance of wood burning smoke particles. In January the Delta-C values were shows negative during the early morning (03:00 LT), morning hours (06:00 to 08:00 LT) and afternoon hours (13:00 to 15:00 LT). The positive values indicate that the presence of wood burn smoke, during February the most of the diurnal hours shows positive value except the morning hour (06:00 LT) and afternoon hour (13:00 LT). The results show that the wood burning smoke dominated diurnally over the Winter. The aromatic organic compounds, smoke and Fossil fuel & Biomass burning based particles were contributing at equal percentage (20%) over the study period. The contribution of Hematite mineral dust was 21% during the entire Winter.