Levels of aerosol trace metals along the Mediterranean coast of Israel (1996-97)

Measurements of aerosol trace metals (Pb, Cd, Cu, Zn, Cr, Mn, Fe, and Al), at three sites along the Mediterranean coast of Israel during 1996-97, were used to provide data on their spatial and seasonal variations and to assess their sources. Generally, similar aerosol trace metal concentrations were observed at the northern stations, both lower than at the south, however, more data are essential to certify this pattern. The naturally (crustal) derived elements (Fe, Al, Mn and Cr) showed similar variability, unlike the anthropogenic trace metals (Pb, Cd, Cu, Zn). Crustal-derived elements showed significantly higher concentrations during autumn and spring as compared to summer. All sites had similar Pb:Cd and Zn:Cd ratios, higher than at the northwestern Mediterranean sites, probably reflecting a greater contribution of crustal material.