Contribution Of Oil Palm Isoprene Emissions To
Tropospheric Ozone Levels In The
Distrito Metropolitano De Quito (Ecuador)
Author(s)
R. Parra
Abstract
Volatile organic compound (VOC) emissions from vegetation are important in
the Distrito Metropolitano de Quito (DMQ). In particular, oil palm (Elaeis
guineensis) isoprene emissions are significant near the DMQ. Oil palm
cultivation is promoted because of the growing demand for biodiesel production.
The contribution of isoprene from oil palm to tropospheric ozone (O3)
production was estimated by numerical simulation for the period 2–28 of
September 2006, using estimates of emissions from the DMQ in the Eulerian
chemical transport model WRF-Chem. On-road traffic, power facilities and other
industries, vegetation, services stations and solvent use were considered as
emission sources, under the following scenarios: 1) without oil palm, 2) with oil
palm plantation in 2003; and, 3) with an expected future plantation. Two groups
of emission rates were used: 1) a group of mid-range emission factors (up to 51
µg g-1 h-1) and 2) a high isoprene emission factor (172.9 µg g-1 h-1). Results
indicate that increasing areas of oil palm plantations in the future could increase
O3 concentrations. Scenario 3) with the high emission factor, provides maximum
hourly anomalies of 17.9 µg m-3 over the urban zone. Scenario 3), with the midrange
emission factors, results in maximum hourly anomalies of 2.7 µg m-3.
Keywords: Elaeis guineensis, WRF-Chem, numerical simulation, volatile
organics compounds.
1 Introduction
Volatile organic compound (VOC) emissions from vegetation are important in
the Distrito Metropolitano de Quito (DMQ). Isoprene (C5H8) is a reactive VOC
Keywords
Elaeis guineensis, WRF-Chem, numerical simulation, volatile
organics compounds.
Related Book
Other papers in this volume
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