Pranamika Bhuyan, Pratibha Deka, Amit Prakash, S Balachandran, Raza Rafiqul Hoque
Aerosol samples (as PM10, n = 250) were collected from three rural/remote receptor locations in the mid Brahmaputra plain region and were chemically characterized for metals (Al, Fe, Co, Cu, Cr, Cd, Mn, Ni, Pb), ions (Ca2+ , Mg2+ , Na+ , K+ , NH4 + , F- , Cl- , NO3 - , SO4 2- ), and carbon. Vital ratios like NO3 - /SO4 2- , EC/OC, K+ /EC, K+ /OC, enrichment factors and inter-species correlations were exploited to appreciate possible sources of aerosol. These empirical analyses pointed towards anthropogenic contributions of aerosol, particularly from biomass burning, vehicular emission, and road dust...
March 2018: Environmental Pollution