Characterization of organic functional groups, water-soluble ionic species and carbonaceous compounds in PM10 from various emission sources in Songkhla Province, Thailand
PM10 samples were collected at nine sampling stations using a high volume (hivol) air sampler during the period of June–November 2007. Using the ATRFTIR technique, the chemical compositions of organic and water-soluble ionic species (WSIS) PM10 aerosols from each emission source were identified. WSI...
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Veröffentlicht in: | Transactions on ecology and the environment 2009-01, Vol.123, p.295-306 |
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description | PM10 samples were collected at nine sampling stations using a high volume (hivol) air sampler during the period of June–November 2007. Using the ATRFTIR technique, the chemical compositions of organic and water-soluble ionic species (WSIS) PM10 aerosols from each emission source were identified. WSIS such as SO4 2-, NO3 -, CO3 2- , NH4 + were mainly found in PM10 aerosols. The highest concentrations of NO3 -, NH4 + and CO3 2- were detected in aerosols collected from sampling sites adjacent to traffic roads. This can be explained by the heterogeneous reaction of SO2/NO2 mixtures with carbon soot that lead to the highest contribution of WSIS in combustion particles from vehicle exhausts. In addition, the ratios of organic carbon/elemental carbon (OC/EC) collected at heavy traffic road, bus terminal and traffic demonstrated the lowest values of |
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subjects | Aerosols Applied sciences Atmospheric pollution Carbon Chemical composition Exact sciences and technology Exhausts Functional groups Human immunodeficiency virus Nitrogen dioxide Organic carbon Organic chemistry Particulate matter Pollutants physicochemistry study: properties, effects, reactions, transport and distribution Pollution Sampling Soot Sulfur dioxide Traffic Vehicle emissions Water chemistry |
title | Characterization of organic functional groups, water-soluble ionic species and carbonaceous compounds in PM10 from various emission sources in Songkhla Province, Thailand |
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