EDXRF and TXRF analysis of aerosol particles and the mobile fraction of soil in Botswana

Samuel Chimidza; Arturs Viksna; Eva Selin Lindgren

doi:10.1002/xrs.502

EDXRF and TXRF analysis of aerosol particles and the mobile fraction of soil in Botswana

Samuel Chimidza
, Arturs Viksna
, Eva Selin Lindgren^*

^*Corresponding author for this work

Department of Chemistry

Chalmers University of Technology
University of Botswana

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Surface soil and airborne particles were sampled at two locations in Botswana, Serowe and Gaborone. EDXRF and TXRF were used to analyse the soil samples for elemental concentrations and the mobile (bio-available) fractions of the soil. EDXRF was also used for analysis of the aerosol particles in two size fractions, PM_2.5 and PM_2.5-10. To extract the mobile fraction, the soil samples were leached in ammonium acetate solution at pH 7. Most of the elements in the soils were found to have very low mobility at the two locations. In order to identify elements for which the major sources in the fine and coarse airborne particles are anthropogenic, elemental concentrations in the soil were used to calculate enrichment factors of airborne particles with respect to titanium in soil. From the calculated enrichment factors, it appears that the elements attributed to bio-mass burning and those attributed to car exhausts have strong anthropogenic sources in Serowe and Gaborone, respectively.

Original language	English
Pages (from-to)	301-307
Number of pages	7
Journal	X-Ray Spectrometry
Volume	30
Issue number	5
DOIs	https://doi.org/10.1002/xrs.502
Publication status	Published - 2001

Access to Document

10.1002/xrs.502

Cite this

@article{2a4e6a92913f46219ddab8b4a4410ece,

title = "EDXRF and TXRF analysis of aerosol particles and the mobile fraction of soil in Botswana",

abstract = "Surface soil and airborne particles were sampled at two locations in Botswana, Serowe and Gaborone. EDXRF and TXRF were used to analyse the soil samples for elemental concentrations and the mobile (bio-available) fractions of the soil. EDXRF was also used for analysis of the aerosol particles in two size fractions, PM2.5 and PM2.5-10. To extract the mobile fraction, the soil samples were leached in ammonium acetate solution at pH 7. Most of the elements in the soils were found to have very low mobility at the two locations. In order to identify elements for which the major sources in the fine and coarse airborne particles are anthropogenic, elemental concentrations in the soil were used to calculate enrichment factors of airborne particles with respect to titanium in soil. From the calculated enrichment factors, it appears that the elements attributed to bio-mass burning and those attributed to car exhausts have strong anthropogenic sources in Serowe and Gaborone, respectively.",

author = "Samuel Chimidza and Arturs Viksna and Lindgren, \{Eva Selin\}",

year = "2001",

doi = "10.1002/xrs.502",

language = "English",

volume = "30",

pages = "301--307",

journal = "X-Ray Spectrometry",

issn = "0049-8246",

publisher = "John Wiley and Sons Ltd",

number = "5",

}

TY - JOUR

T1 - EDXRF and TXRF analysis of aerosol particles and the mobile fraction of soil in Botswana

AU - Chimidza, Samuel

AU - Viksna, Arturs

AU - Lindgren, Eva Selin

PY - 2001

Y1 - 2001

N2 - Surface soil and airborne particles were sampled at two locations in Botswana, Serowe and Gaborone. EDXRF and TXRF were used to analyse the soil samples for elemental concentrations and the mobile (bio-available) fractions of the soil. EDXRF was also used for analysis of the aerosol particles in two size fractions, PM2.5 and PM2.5-10. To extract the mobile fraction, the soil samples were leached in ammonium acetate solution at pH 7. Most of the elements in the soils were found to have very low mobility at the two locations. In order to identify elements for which the major sources in the fine and coarse airborne particles are anthropogenic, elemental concentrations in the soil were used to calculate enrichment factors of airborne particles with respect to titanium in soil. From the calculated enrichment factors, it appears that the elements attributed to bio-mass burning and those attributed to car exhausts have strong anthropogenic sources in Serowe and Gaborone, respectively.

AB - Surface soil and airborne particles were sampled at two locations in Botswana, Serowe and Gaborone. EDXRF and TXRF were used to analyse the soil samples for elemental concentrations and the mobile (bio-available) fractions of the soil. EDXRF was also used for analysis of the aerosol particles in two size fractions, PM2.5 and PM2.5-10. To extract the mobile fraction, the soil samples were leached in ammonium acetate solution at pH 7. Most of the elements in the soils were found to have very low mobility at the two locations. In order to identify elements for which the major sources in the fine and coarse airborne particles are anthropogenic, elemental concentrations in the soil were used to calculate enrichment factors of airborne particles with respect to titanium in soil. From the calculated enrichment factors, it appears that the elements attributed to bio-mass burning and those attributed to car exhausts have strong anthropogenic sources in Serowe and Gaborone, respectively.

UR - https://www.scopus.com/pages/publications/0035636727

U2 - 10.1002/xrs.502

DO - 10.1002/xrs.502

M3 - Article

AN - SCOPUS:0035636727

SN - 0049-8246

VL - 30

SP - 301

EP - 307

JO - X-Ray Spectrometry

JF - X-Ray Spectrometry

IS - 5

ER -

EDXRF and TXRF analysis of aerosol particles and the mobile fraction of soil in Botswana

Abstract

Access to Document

Other files and links

Fingerprint

Cite this