The production of secondary organic aerosols due to the oxidation of biogenic volatile organic compounds, is controlled by NOx and its reservoir concentrations. The mixing ratios of NO2, RO2NO2 and RONO2 were measured as part of the multi-investigator study, OP3, which took place in the Borneo forest (Malaysia) in July 2008. Ten hertz NO2 measurements allow to use the eddy covariance technique to determine NO2 fluxes. NO2, RO2NO2 and RONO2 show diurnal behavior with very low concentration (NO2 below 1 ppbv for almost all the campaign), although it is greater during nights than during days. The implications of these observations and their impact on secondary aerosols production will be discussed.
The Behavior of the Nitrogen Diox-ide, Total Peroxy Nitrates, and Total Alkyl Nitrates in the Borneo Forest During 2008 OP3 cam-paign
DI CARLO, PIERO;
2008-01-01
Abstract
The production of secondary organic aerosols due to the oxidation of biogenic volatile organic compounds, is controlled by NOx and its reservoir concentrations. The mixing ratios of NO2, RO2NO2 and RONO2 were measured as part of the multi-investigator study, OP3, which took place in the Borneo forest (Malaysia) in July 2008. Ten hertz NO2 measurements allow to use the eddy covariance technique to determine NO2 fluxes. NO2, RO2NO2 and RONO2 show diurnal behavior with very low concentration (NO2 below 1 ppbv for almost all the campaign), although it is greater during nights than during days. The implications of these observations and their impact on secondary aerosols production will be discussed.Pubblicazioni consigliate
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