Data/hora: 06/06/2024 08:39:37

Provedor de dados: | 27
País: | Belgium
Título: | Characterization of North Sea aerosols by individual particle analyses
Autores: | Bruynseels, F.; Storms, H.; Van Grieken, R.; Van der Auwera, L.
Data: | 1988
Ano: | 1988
Palavras-chave: | Aerosols; Rain.
Resumo: | On aerosol and rain water samples, collected in the Southern Bight of the North Sea, single particle analyses were performed using both laser microprobe mass analysis and electron-probe X-ray microanalysis in combination with an automated image analysis system.In the aerosols collected from an air mass that had traveled from the Atlantic Ocean along the coast of North France, pure seasalt constituted the most abundant particle type, while aluminosilicates (mostly spherical fly-ash particles) amounted to about 20% and mixed seasalt/aluminosilicates, carbonaceous particles, CaSO&lt;sub&gt;4&lt;/sub&gt; and spherical iron oxides contributed each 5-10%. In air masses that had a longer residence time over the continent, spherical iron oxides, carbonaceous particles and ammonium sulfates together made up 70% of the total particle load. Seasalt particles were nearly all enriched in sulfate or nitrate, but they were seen to be washed out efficiently after a rain shower.In rain water, some 40% of the particles appeared to be spherical or irregularly shaped aluminosilicates, from fly-ash and dust dispersal, but more than 50% consisted of SiO&lt;sub&gt;2&lt;/sub&gt;. The high relative abundance of these particles in rain water may be the result of Al leaching from fly-ash, or of more efficient scavenging by rain droplets.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3125
Fonte: | %3Ci%3EAtmos.+Environ.+%281994%29+22%2811%29%3C%2Fi%3E%3A+2593-2602
Fonte: | info:eu-repo/semantics/restrictedAccess