Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Prace Naukowe Politechniki Warszawskiej. Elektronika

1 2005

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Badanie drobin pyłów atmosferycznych ze środowiska miejskiego i wiejskiego metodami SIMS i SSMS

Konarski P., Hałuszka J., Ćwil M., Kaczorek K., Pisiewicz K., Strugała-Stawik H.

Prace Naukowe Politechniki Warszawskiej. Elektronika

2005

z. 153

89-93

Aiborne particles were collected in two different environments in Poland - in Legnica, a middle size town situated close to the big copper works and in rural site in the suburs of Krakow. Bulk analysis of particulate matter collected on quartz fiber filte5rs was performed using spark source mass spectroscopy (SSMS). Analysis of aerosol particles from urban and rural environments revealed differences in partial concentration of 20 selected elements. In urban aerosol collected in Legnica we found more: Pb, Cr - 20 times than in the rural environment and As, Sr - 10 times, Co - 7 times, Cl -5 times, V, Y - 3 times, Ti, Mn, Cu, Se - 2 times and Fe, Ni, Zn, Br, Zr, Mo almost two times more than in the rural environment. Secondary ions mass spectrometry (SIMS) depth profile analyses were performed for samples of aerosol particles collected at Al-foils with the use of nine-stage rotating plates cascade impactor. SIMS results obtained with the use of 5 keV Ar(+) ion sputtering show "core-shell" structure of urban and rural particles dependent of their grain size in the range of 300 nm tu 15 um. Ultra fine (300-500 nm dia) rural particles have shell layers enriched in iron and manganese, while such enrichment is observed for coarse (5-10 um dia) urban particles.