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Author Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. doi  openurl
  Title Elemental abundance variation with particle-size in north florida aerosols Type A1 Journal article
  Year (down) 1976 Publication Journal of geophysical research Abbreviated Journal  
  Volume 81 Issue 6 Pages 1039-1046  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract A nonurban base line has been established for nine trace element constituents of aerosol particles as a function of particle size at ground level sampling stations in north Florida up to 50 km from the Gulf of Mexico. The particle size range 0.25- to >4-μm aerodynamic diameter was investigated by cascade impactor sampling and elemental analysis by proton-induced X ray emission. By using a strategy of sampling at urban, forest, and coastal locations and by choosing approximately 48-hour sample averaging intervals the potential dependence of the base line levels both on local pollution and natural sources and on local particle size specific aerosol removal processes could be evaluated. It is found that elements contained in the largest particles, especially those of >4 μm, display the greatest degree of average concentration difference between sites, a result suggesting short atmospheric residence times and the importance of local dispersion sources and atmospheric cleansing processes in regulating the particle concentrations in air. Elements contained in particles of <2-μm diameter show little average concentration difference between sites unless they are influenced by local pollution sources, a finding suggesting that their concentrations in air are regulated by large-scale sources and transport processes. Sulfur in the smallest particles shows a marked constancy of concentration, but it may be modified in the largest particle size ranges in relation to proximity to the seacoast. No evidence is found for dependence of particulate sulfur concentrations on local pollution sources. K, Ca, Ti, Fe, and Zn appear to be regulated in the main by terrestrial source processes, and Cl by marine source processes, but Br and Pb appear to be accounted for adequately by assuming automotive fuel combustion as their major source. Limited data obtained for V indicate that it may vary considerably with fluctuations in aerosol transport from oil-fired electric power plant sources in the region. Limited additional data also suggest that Mn is derived from sources of natural terrestrial composition. In view of these findings, certain criteria may be set for the design of a meaningful nonurban aerosol monitoring network.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos A1976BG78300001 Publication Date 2008-02-06  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0148-0227; 2156-2202; 0022-1406; 0196-6928; 0196-6936; 0885-3401; 8755-8556; 0196-2256; 0747-7309; 1 ISBN Additional Links UA library record; WoS full record; WoS citing articles  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113637 Serial 7879  
Permanent link to this record
 

 
Author Van Grieken, R.E.; Johansson, T.B.; Akselsson, K.R.; Winchester, J.W.; Nelson, J.W.; Chapman, K.R. pdf  doi
openurl 
  Title Geophysical applicability of aerosol size distribution measurements using cascade impactors and proton-induced X-ray-emission Type A1 Journal article
  Year (down) 1976 Publication Atmospheric environment : an international journal Abbreviated Journal  
  Volume 10 Issue 8 Pages 571-576  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract Proton Induced X-ray Emission, (PIXE), is capable of high precision analysis for trace element components of aerosol particle size fractions sampled by cascade impactor. A statistical evaluation of data quality has been carried out in order to distinguish between analytical uncertainties in the PIXE procedure, errors caused by cascade impactor performance and by other factors in the sampling procedure, and geophysical causes of differences in composition and particle size distributions of the elements in aerosols. Replicate analyses and simultaneous samplings taken in north Florida and St. Louis have been used for the data evaluation. In addition to the analytical error the sampling procedure contributes an error of ~ 10% to be added quadratically. The resulting precision is sufficient to evaluate the data in geophysical terms. This is illustrated by means of sample sets taken simultaneously in an urban, forest and coastal environment of the same region.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos A1976BZ75500001 Publication Date 2003-08-06  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1352-2310 ISBN Additional Links UA library record; WoS full record; WoS citing articles  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113636 Serial 8000  
Permanent link to this record
 

 
Author Akselsson, R.; Orsini, C.; Meinert, D.L.; Johansson, T.B.; Van Grieken, R.E.; Kaufmann, H.C.; Chapman, K.R.; Nelson, J.W.; Winchester, J.W. openurl 
  Title Application of proton induced X-ray emission analysis to the St. Louis regional air pollution study Type P3 Proceeding
  Year (down) 1976 Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos Publication Date  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Additional Links UA library record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113633 Serial 7481  
Permanent link to this record
 

 
Author Johansson, T.B.; Van Grieken, R.E.; Nelson, J.W.; Winchester, J.W. doi  openurl
  Title Elemental trace analysis of small samples by proton-induced X-ray-emission Type A1 Journal article
  Year (down) 1975 Publication Analytical chemistry Abbreviated Journal  
  Volume 47 Issue 6 Pages 855-860  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos A1975AA02900016 Publication Date 2005-03-08  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113638 Serial 7895  
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Author Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W.; Odom, L. doi  openurl
  Title Micro-determination of zirconium-hafnium ratios in zircons by proton induced X-ray emission Type A3 Journal article
  Year (down) 1975 Publication Fresenius' Zeitschrift für analytische Chemie Abbreviated Journal  
  Volume 275 Issue 5 Pages 343-348  
  Keywords A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract The zirconium/hafnium ratios of zircons are determined using proton induced X-ray emission. Submilligram samples, imbedded in a starch layer and deposited on a 50 μg/cm2 polystyrene carrier, are irradiated for 1020 min with a 5 nA beam of 3.7 MeV protons, while the Hf-Lβ and Zr-Kα X-rays are counted with a Si(Li) detector. The standard deviation per analysis is in the 36 % range. Only few interferences are possible. To eliminate errors due to absorption effects the zircon layer thickness should be above 40 μm or reproducibly thin samples should be employed. Measuring the Hf-Lβ/Hf-Lα ratio for samples and standards might provide a practical check for the absence of absorption errors. The sensitivity is so favourable that, in practice, the minimal sample size is only limited by the minimal amount that can be handled properly.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos Publication Date 2004-11-11  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0016-1152 ISBN Additional Links UA library record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:116636 Serial 8231  
Permanent link to this record
 

 
Author Winchester, J.W.; Meinert, D.L.; Nelson, J.W.; Johansson, T.B.; Van Grieken, R.E.; Orsini, C.; Kaufmann, H.C.; Akselsson, R. openurl 
  Title Trace metals in the St-Louis aerosol Type H3 Book chapter
  Year (down) 1975 Publication Abbreviated Journal  
  Volume Issue Pages 385-394 T2 - Nuclear techniques in environmental r  
  Keywords H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos Publication Date  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Additional Links UA library record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:117459 Serial 8694  
Permanent link to this record
 

 
Author Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. openurl 
  Title Interpretation of aerosol trace metal particle size distributions Type H3 Book chapter
  Year (down) 1975 Publication Abbreviated Journal  
  Volume Issue Pages 356-365 T2 - Nuclear techniques in environmental r  
  Keywords H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos Publication Date  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Additional Links UA library record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:117460 Serial 8117  
Permanent link to this record
 

 
Author Nelson, J.W.; Williams, I.; Johansson, T.B.; Van Grieken, R.E. doi  openurl
  Title Elemental analysis of aerosols using proton-scattering Type A1 Journal article
  Year (down) 1974 Publication IEEE transactions on nuclear science Abbreviated Journal  
  Volume Ns21 Issue 1 Pages 618-621  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract Elemental analysis for all of the light elements up through chlorine by elastic scattering of 16 MeV protons has been shown to be feasible. Basic problems associated with such measurements are discussed including kinematics, angular distribution, and sample backings. Spectra are presented for air particulate matter for both a total filter (Nuclepore) and a size fractionated air impactor (polystyrene backed) sample. The method is absolute, non destructive and can be used in conjunction with proton induced x-ray fluorescence to quantitatively analyze all elements in the same sample in minutes of time.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos A1974S533700086 Publication Date 2008-07-22  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0018-9499 ISBN Additional Links UA library record; WoS full record; WoS citing articles  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113642 Serial 7881  
Permanent link to this record
 

 
Author Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W. openurl 
  Title Trace metal fractionation effects between sea water and aerosols from bubble bursting Type A1 Journal article
  Year (down) 1974 Publication Journal de recherches atmosphériques Abbreviated Journal  
  Volume 8 Issue 3-4 Pages 611-621  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos Publication Date  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-7972 ISBN Additional Links UA library record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113641 Serial 8693  
Permanent link to this record
 

 
Author Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. openurl 
  Title Marine influences on aerosol composition in the coastal zone Type A1 Journal article
  Year (down) 1974 Publication Journal de recherches atmosphériques Abbreviated Journal  
  Volume 8 Issue 3-4 Pages 761-766  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos Publication Date  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-7972 ISBN Additional Links UA library record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113640 Serial 8204  
Permanent link to this record
 

 
Author Johansson, T.B.; Nelson, J.W.; Van Grieken, R.E.; Winchester, J.W. openurl 
  Title Elemental analysis of aerosol-size fractions by proton-induced X-ray-emission Type A1 Journal article
  Year (down) 1973 Publication Transactions of the American Nuclear Society Abbreviated Journal  
  Volume 17 Issue Nov Pages 103-103  
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos A1973R161300114 Publication Date  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-018x ISBN Additional Links UA library record; WoS full record  
  Impact Factor Times cited Open Access  
  Notes Approved no  
  Call Number UA @ admin @ c:irua:113643 Serial 7880  
Permanent link to this record
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