The European Conference on Sustainability, Energy & the Environment 2015, Brighton,
United Kingdom
Official Conference Proceedings

The European Conference on Sustainability, Energy & the Environment 2015, Brighton,
United Kingdom
Official Conference Proceedings

The European Conference on Sustainability, Energy & the Environment 2015, Brighton,
United Kingdom
Official Conference Proceedings

Burning of biomass is an important source of acid aerosols and black carbon
emissions into the atmosphere. In the tropics, the formation of secondary organic and
inorganic aerosols depends on meteorological parameters. High humidity and rain
washout both air borne gas and aerosol concentrations. We monitored the
concentrations of aerosols associated with biomass burning from July to December
2012 at the Sakaerat Biosphere Reserve (SBR) - a UNESCO Man and Biosphere
(MAB) reserve. Considerable biomass burning is known to occur in the vicinity of
SBR. All meteorological instruments were installed on 36 m tower. Air samples were
collected by the filter packs method. The organic acids identified samples included
citrate, tartrate, malate, formate, acetate, succinate and lactate. The concentration of
organic acids was 6, 27 and 100 times higher than black carbon, sulfate and nitrate,
respectively. We used the inferential method to determine the deposition flux of
aerosols. The deposition of organic acids was obtained in the ranges of 4.9–51.0 µg
m
-2
min
-1
; black carbon, 1.2–7.8 µg m
-2
min
-1
; sulfate, 0.2–0.5 µg m
-2
min
and nitrate,
0.3–1.0 µg m
-2
min
-1
. The deposition depended on the atmospheric concentration and
deposition velocity of each component. The deposition velocity also varied with
season and canopy surfaces
Keywords: acid aerosol, black carbon, deposition, biomass burning, inferential
method

Phuvasa Chanonmunag
Pojanie Khummongkol
Khattiya Sukprasert
Yutthana Tantiwiwat
Taksin Artchwakom