Mean residence times of atmospheric aerosols in the boundary layer as determined from 210Bi/210Pb activity ratios

Autor:	E.A. Bondietti, C. Papastefanou
Rok vydání:	1991
Předmět:	Fluid Flow and Transfer Processes Atmospheric Science Environmental Engineering Activity ratios Chemistry Mechanical Engineering Mineralogy Atmospheric sciences Annual cycle Pollution Aerosol Atmosphere Boundary layer Residence Radiochemical analysis Cascade impactor
Zdroj:	Journal of Aerosol Science. 22:927-931
ISSN:	0021-8502
DOI:	10.1016/0021-8502(91)90085-v
Popis:	Concentrations of radioactive 210 Pb and 210 Bi were measured in surface air after chemical separation and radiochemical analysis in an annual cycle and were used to determine aerosol residence times in the lower atmosphere. It was concluded that residence times of 8 days would apply to aerosols of 0.3 μm activity median aerodynamic diameter (AMAD). Cascade impactor data are also presented in relating the residence times and the AMAD of atmospheric aerosols.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1064c9b467e81079b04b1e76caad534d https://doi.org/10.1016/0021-8502(91)90085-v Zobrazit plný text záznamu