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Details van artikel 9 van 16 gevonden artikelen
| Titel: |
Particle size distribution and long-range transport of metals in atmospheric aerosols from the Alfabia Station (Majorca, Spain) |
| Auteur: |
Mateu, J. Forteza, R. Cerda, V. Colom-Altes, M. |
| Verschenen in: |
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering |
| Paginering: | Jaargang 31 (1996) nr. 1 pagina's 31-54 |
| Jaar: |
1996-01 |
| Inhoud: |
Atmospheric aerosols collected by using a cascade impaction system at the Alfabia station (1100 m above sea level in Majorca, Spain) from February to June 1994 were analysed for calcium, zinc, manganese, magnesium, sodium, copper, potassium, lead, chromium, cadmium, iron, vanadium and nickel. The results revealed a major effect of long-range transport of metals from natural and anthropogenic sources. The metals were found to abound in fine particles (a < 0.5 μm), in contrast with atmospheric aerosols previously collected at the campus of the University of the Balearic Islands (not subject to long-range transport), where natural metals predominated in coarse particles. Samples were classified into three groups according to metal concentrations and origin by a principal component analysis (PCA). Aerosols from northern Spain, southern and central France, and Sardinia were found to contain high concentrations of metals of anthropogenic origin (Cd, Zn, Ni), whereas those from southern Spain and northern Africa were found to abound with metals from natural sources (Ca, Mg, Mn, Fe, K, Cr). Both local and remote aerosols exhibited low metal concentrations in any case. The concentrations of heavy metals in Alfabia are similar to the others observed by several authors in other stations of the Western Mediterranean Sea. Nevertheless, a light increase is observed in the metals content of anthropogenic origin in the nearest stations to the sources of the european emissions. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 16 gevonden artikelen
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