Seasonal variability in 7Be depositional fluxes at Granada, Spain.

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...

Seasonal 7Be concentrations in near-surface air of Granada (Spain) in the period 1993-2001.

Near-surface air samples for assessment of seasonal 7Be levels were taken weekly at Granada, Spain, (37 degrees 10'50"N-3 degrees 35'44"W, altitude 670 m) in the period 1993-2001. The 7Be levels measured reflect strong seasonal trends. Concentrations during autumn and/or winter showed a minimum (ca. 1.5 mBq/m3), and in each year a fallout maximum was found in summer (ca. 7.6 mBq/m3). Multiple r...

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

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...

Atmospheric dry deposition of persistent organic pollutants to the Atlantic and inferences for the global oceans.

Atmospheric deposition to the oceans is a key process affecting the global dynamics and sinks of persistent organic pollutants (POPs). A new methodology that combines aerosol remote sensing measurements with measured POP aerosol-phase concentrations is presented to derive dry particulate depositional fluxes of POPs to the oceans. These fluxes are compared with those due to diffusive air-water e...