Atmospheric Concentrations of 210Pb and 7Be Observed in Okinawa Islands

Atmospheric depositional fluxes of 7Be and 210Pb at Galveston and College Station, Texas

Thc bulk dcposi tional 0 uxcs of 2l QPb rrd 7Bc werc mcasured at a co6 tal (Galvcston) and qn i nlad (Col legc Station)st*ion'forabout 3 ycars, bctwccn 1989 and l99t Thc annuat d?osiiional fluxe of ?Bc and zlQU-"t Station is of contincntal origin. 6ur'dea thcrsforc suggcst that 78" "ia 2lQP6 cannot bc uscd as indcFndc-nt atrnospheric traccn in ourcoctal station. This obscrvation is consistcnt w...

Factors controlling 7Be and 210Pb atmospheric deposition as revealed by sampling individual rain events in the region of Geneva, Switzerland.

Bulk atmospheric deposition of 7Be and 210Pb has been measured at Versoix, close to Geneva, Switzerland. Collectors were continuously deployed from November 1997 through November 1998 for periods from 1 to 22 days depending on the frequency of rain. The activities of 7Be and 210Pb integrated over the sampling interval were moderately well correlated with rainfall (r2 of 0.66 and 0.55, respectiv...

Distribution of fallout radionuclides (7Be, 137Cs, 210Pb and 239,240Pu) in soils of Taiwan.

Depth profiles and cumulative deposition of four fallout radionuclides (7Be, 137Cs, 210Pb and 239,240Pu) were determined in presumably undisturbed soils in Taiwan. Inventories of these radionuclides in different areas correlate significantly with each other (except 7Be) and with mean annual rainfall, providing a necessary condition for the development of soil erosion studies in Taiwan. However,...

A search for the seasonal variability on the depositional fluxes of 7Be and 210Pb

Investigations of the atmospheric fallout of 7Be and 210pb in many places around the globe indicate that there are seasonal variations on the alepositional fluxes of these nuclides: high in winter in a few places, while in most places the high occurs in spring. However, these earlier studies did not address quantitatively the corresponding seasonal variations of the amount of precipitation duri...

Depositional fluxes and concentrations of 7Be and 210Pb in bulk precipitation and aerosols at the interface of Atlantic and Mediterranean coasts in Spain