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Wahnström, Tomas
Publikasjoner (5 av 5) Visa alla publikasjoner
Kwame Abouh, I. J., Henriksson, D., Laursen, J., Lundin, M., Gormon Ofosu, F., Pind, N., . . . Wahnström, T. (2009). Identification of aerosol particle sources in semi-rual area of Kwabenya, near Accra, Ghana, by EDXRF techniques. X-Ray Spectrometry, 38(4), 348-353
Åpne denne publikasjonen i ny fane eller vindu >>Identification of aerosol particle sources in semi-rual area of Kwabenya, near Accra, Ghana, by EDXRF techniques
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2009 (engelsk)Inngår i: X-Ray Spectrometry, ISSN 0049-8246, E-ISSN 1097-4539, Vol. 38, nr 4, s. 348-353Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Small aerosol particles have for a long time been known to be harmful to humans, and are today regarded to cause a larger number of deaths than traffic accidents globally. Energy dispersive x-ray fluorescence (EDXRF) is a well known method that has been used for identification of toxic as well as non-toxic elements in the particles. The combination of elements will together with other information help to identify the sources and predict the effects of particles on environment and human health. The present work was conducted in Kwabenya, a suburb of the capital Accra of Ghana, which is frequently exposed to Harmattan dust from the Sahara-Sahel region. In total 171 filters each of PM2.5 and PM(2.5-10) were collected during 1 year. Levels of elements, black carbon (BC) and mass, were determined for both particle sizes. Principal component analysis (PCA) was performed on the datasets from Harmattan and non-Harmattan periods. The daily average of PM10 was very high, 179 mu g m(-3) and the BC contents were 4 mu g m(-3). The presence of crustal elements was large in PM(2.5-10) as well as in PM2.5, and had a more than tenfold increase in PM(2.5-10) during the Harmattan period. Major characteristic elements for different sources were identified from correlation coefficients and regression analysis of the data. Sahara sand aerosol was the major source in both study periods, but influence from biomass burning, sea-spray and metal industries was also observed. Copyright (C) 2009 John Wiley & Sons, Ltd.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2009
Emneord
Energi och material
HSV kategori
Identifikatorer
urn:nbn:se:hb:diva-2691 (URN)10.1002/xrs.1172 (DOI)2320/5809 (Lokal ID)2320/5809 (Arkivnummer)2320/5809 (OAI)
Tilgjengelig fra: 2015-11-13 Laget: 2015-11-13 Sist oppdatert: 2017-12-10bibliografisk kontrollert
Aboh, I. J., Henriksson, D., Laursen, J., Selin Lindgren, E., Lundin, M., Pind, N. & Wahnström, T. (2008). Air Pollution and Meteorology: Ambient PM2.5 Aerosol Origin Studied by Factor Analysis of Elemental Composition Related to Wind Data. In: : . Paper presented at Conference on Environmental Pollution, Riga, Latvia, 15-16 May, 2008.
Åpne denne publikasjonen i ny fane eller vindu >>Air Pollution and Meteorology: Ambient PM2.5 Aerosol Origin Studied by Factor Analysis of Elemental Composition Related to Wind Data
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2008 (engelsk)Konferansepaper, Poster (with or without abstract) (Annet vitenskapelig)
Emneord
PM2.5, waste incineration, EDXRF, Energi och material
HSV kategori
Identifikatorer
urn:nbn:se:hb:diva-6066 (URN)2320/4465 (Lokal ID)2320/4465 (Arkivnummer)2320/4465 (OAI)
Konferanse
Conference on Environmental Pollution, Riga, Latvia, 15-16 May, 2008
Tilgjengelig fra: 2015-12-22 Laget: 2015-12-22 Sist oppdatert: 2017-01-27bibliografisk kontrollert
Aboh, I. J., Henriksson, D., Laursen, J., Lundin, M., Gormon Ofosu, F., Pind, N., . . . Wahnström, T. (2008). Identification of Aerosol Particle Sources in Semi-rural of Kwabenya, near Accra, Ghana. In: : . Paper presented at EXRS 2008 European Conference on X-ray Spectrometry, June 16-20 2008, Cavtat, Dubrovnik, Croatia.
Åpne denne publikasjonen i ny fane eller vindu >>Identification of Aerosol Particle Sources in Semi-rural of Kwabenya, near Accra, Ghana
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2008 (engelsk)Konferansepaper, Poster (with or without abstract) (Annet vitenskapelig)
Emneord
aerosol particles, PM, ghana, EDXRF, harmattan, Energi och material
HSV kategori
Identifikatorer
urn:nbn:se:hb:diva-6067 (URN)2320/4466 (Lokal ID)2320/4466 (Arkivnummer)2320/4466 (OAI)
Konferanse
EXRS 2008 European Conference on X-ray Spectrometry, June 16-20 2008, Cavtat, Dubrovnik, Croatia
Tilgjengelig fra: 2015-12-22 Laget: 2015-12-22 Sist oppdatert: 2017-01-26bibliografisk kontrollert
Kwame Aboh, I. J., Henriksson, D., Laursen, J., Lundin, M., Gormon Ofosu, F., Pind, N., . . . Wahnström, T. (2007). Characteristics and source assignment of aerosol particles in a semi-urban area in Ghana during the Harmattan season using EDXRF analysis.. In: : . Paper presented at Euroanalysis XIV Conference, Antwerp, Belgium, 9-14 Sept. 2007.
Åpne denne publikasjonen i ny fane eller vindu >>Characteristics and source assignment of aerosol particles in a semi-urban area in Ghana during the Harmattan season using EDXRF analysis.
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2007 (engelsk)Konferansepaper, Poster (with or without abstract) (Annet vitenskapelig)
Emneord
air pollution, harmattan, EDXRF, PM, Energi och material
HSV kategori
Identifikatorer
urn:nbn:se:hb:diva-5761 (URN)2320/2922 (Lokal ID)2320/2922 (Arkivnummer)2320/2922 (OAI)
Konferanse
Euroanalysis XIV Conference, Antwerp, Belgium, 9-14 Sept. 2007
Tilgjengelig fra: 2015-12-22 Laget: 2015-12-22 Sist oppdatert: 2017-10-02bibliografisk kontrollert
Kwame Aboh, I. J., Henriksson, D., Laursen, J., Lundin, M., Pind, N., Selin Lindgren, E. & Wahnström, T. (2007). EDXRF characterisation of elemental contents in PM2.5 in a medium-sized Swedish city dominated by a modern waste incineration plant. X-Ray Spectrometry, 36(2), 104-110
Åpne denne publikasjonen i ny fane eller vindu >>EDXRF characterisation of elemental contents in PM2.5 in a medium-sized Swedish city dominated by a modern waste incineration plant
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2007 (engelsk)Inngår i: X-Ray Spectrometry, ISSN 0049-8246, E-ISSN 1097-4539, Vol. 36, nr 2, s. 104-110Artikkel i tidsskrift (Fagfellevurdert) Published
sted, utgiver, år, opplag, sider
Wiley InterScience, 2007
Emneord
air pollution, PM2.5, EDXRF, Energi och material
HSV kategori
Identifikatorer
urn:nbn:se:hb:diva-2284 (URN)10.1002/xrs.947 (DOI)2320/2919 (Lokal ID)2320/2919 (Arkivnummer)2320/2919 (OAI)
Tilgjengelig fra: 2015-11-13 Laget: 2015-11-13 Sist oppdatert: 2017-12-03bibliografisk kontrollert
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