Loss of unburned-fuel hydrocarbons from combustion aerosols during atmospheric transport

Article Abstract:

The relative content of unburned-fuel (FHC) hydrocarbon appear to decrease from near combustion source to remote samples suggesting that FHC originally belong to the exchangeable fraction of combustion aerosol hydrocarbons. Results indicated that polycyclic aromatic hydrocarbons (PHC) and FHC show a decoupled affinity to soot. PHC are produced entirely in small particles while FHC are distributed onto all sizes.

Waste Management and Remediation Services, Hydrocarbon Pollutants NEC, Industrial Product Aerosols, Economic aspects, Hydrocarbon pollutants, Hydrocarbon research, Aerosol containers

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Secondary formation and the Smoky Mountain organic aerosol: an examination of aerosol polarity and functional group composition during SEAVS

Article Abstract:

Direct Fourier transform infrared spectroscopy allowed the separation by polarity and identification of aerosol collected during the Smoky Mountain Aerosol and Visibility Study at Look Rock, TN. Results also revealed that the submicron organic aerosol was predominantly polar. The concentrations, composition and size distribution of the Smokey Mountain aerosol is governed by secondary formation processes.

Environmental aspects, Atmospheric research

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OH radical reactivity of airborne terbuthylazine adsorbed on inert aerosol

Article Abstract:

Studies reveal that the reaction of terbuthylazine (TBA) with OH radicals results to the abiotic degradation of TBA in the environment. A loss path not initiated by OH radicals was observed aside from the OH reaction. Acetyl-TBA, in addition to the des-alkylation product desethyl-TBA, were found to be the main products of the OH radical reaction.

Pesticide and Other Agricultural Chemical Manufacturing, Agricultural chemicals, not elsewhere classified, Household & Industrial Pesticides, Pesticides

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