FN Archimer Export Format
PT J
TI Atmospheric input of trace metals to the western Mediterranean Sea: 1. Factors controlling the variability of atmospheric concentrations
BT 
AF Dulac, F.
   Buat-Ménard, P.
   Arnold, M.
   Ezat, U.
   Martin, D
AS 1:1;2:1;3:1;4:1;5:2;
FF 1:;2:;3:;4:;5:;
C1 Centre des F aibles R adioactivités, Centre National de la Recherche Scientifique/Commissariat Energie Atomique Gif-sur-Yvette, France
   Etablissement d'Etude et de Recherche Météorologique, france
C2 CEA, FRANCE
   CNRM, FRANCE
IF 2.68
TC 77
UR https://archimer.ifremer.fr/doc/00657/76958/78164.pdf
LA English
DT Article
CR PHYCEMED
   PHYCEMED 83
BO Le Suroît
AB The factors controlling the variability of atmospheric trace metal concentrations over the western Mediterranean Sea have been investigated using a combination of geochemical and meteorological approaches. Al, Br, Cd, Na, Pb and 210Po concentrations from bulk filters and cascade impactor samples collected during five cruises (1980–1983) have been used to characterize the aerosol sources: the marine source (Na), the aeolian soil mobilization (Al), the anthropic sources (Cd, Pb), and the volcanic source (210Po). It has been confirmed that Cd and Pb directly derive from anthropic sources. As shown by three‐dimensional air mass trajectory analyses, the variability of daily atmospheric concentrations reflects both changes in continental source strengths and in airflow patterns. Atmospheric concentrations appear to be higher during episodes of short‐range transport of continental material from riparian countries. It is suggested that such source regions can be precisely identified by a careful examination of both geochemical data and three‐dimensional trajectories. From our data set, southwestern Europe would be responsible for the largest Pb and Cd inputs to the western Mediterranean atmosphere (30–40%), but the inputs from North Africa are also likely to be significant (20–25%). However, it cannot be ascertained whether this conclusion is valid on a yearly time scale. Indeed, whereas our sample set is representative of the yearly airflow climatology, it has not been possible to assess the effect of seasonal (for Pb) or sporadic (for Al) changes in source strengths. This points out that over such a marine environment, continuous sampling programs are needed to assess the respective contributions of individual source regions to the atmospheric burden of particulate trace elements. 
PY 1987
PD JUN
SO Journal Of Geophysical Research-atmospheres
SN 0148-0227
PU American Geophysical Union (AGU)
VL 92
IS D7
UT A1987J426700014
BP 8437
EP 8453
DI 10.1029/JD092iD07p08437
ID 76958
ER

EF