Vanadium in particles and sediments of the northern Saronikos Gulf, Greece

Vertical Distribution and Chemical Fractionation of Heavy Metals in Dated Sediment Cores from the Saronikos Gulf, Greece

“…The much higher oxidizable fraction of V at Station S2, between 2 and 9 cm deep (Figure 4), is attributed to the proximity of the two major oil refineries operating on the coast, as V originating from oil refineries is mostly bound on organic substances [68]. The maximum EFs of V at Stations S1 and S2 (1.4 and 1.7, respectively), dated in the 1980s, show minor modifications of the sediments.…”

“…The maximum EFs for Cu, Zn, Cd, and Pb during the 1980s (7.8, 6.9, 6.0, and 5.0, respectively) (Figure 10) revealed severe modifications of Elefsis Bay sediments attributed to the operation of the cement production plant [68], as concluded also by Karageorgis et al [13]. However, after about 1990, it became apparent that the environmental situation in Elefsis Bay was slowly improving, as the metal enrichment of sediments gradually decreased.…”

“…The total V concentrations were almost three-fold higher at Station S7, compared to S11, with a low variability downcore at both stations, ranging between 57.0 and 68.0 mg/kg at S7 and below 20 mg/kg at S11 (Figure S2). Kalogeropoulos et al [68] postulated a near two-fold enrichment in anthropogenic V in the 1990s in the Inner Saronikos Gulf by estimating an average background V concentration at 30 mg/kg. In this study, the estimated background V content was 16.2 mg/kg (Table 3).…”

Harmful Elements in Estuarine and Coastal Systems

“…Approximately 75-85 % of the vanadium is used in ferrous metallurgy (alloy additives in steel). The main inputs of vanadium into environment are the burning of fossil fuels, crude oil spillages and industrial activities (atomic energy industry, air craft construction and space technology, as catalyst for the production of sulfuric acid and plastics) (Kalogeropoulos et al 1989;WHO 1988).…”

Γεωχημεια Παρακτιων Ιζηματων (Περιοχες Ιθακης-Κεφαλληνιας-Αστακου)

“…Με σκοπό την προστασία του περιβάλλοντος από την ρύπανση και την μόλυνση, οι επιστήμονες μελετούν συστηματικά την συγ κέντρωση και κατανομή της οργανικής ύλης και των βαρέων μετάλων στα ιζήματα και στο νερό, την προέλευση και τον τρόπο εν σωμάτωσης των μετάλλων στα ιζήματα, την τύχη των μετάλλων με τά την είσοδο τους στο θαλάσσιο περιβάλλον,καθώς και την επί δραση των μετάλλων στους ζωντανούς οργανισμούς. (Forstner and Wittman 1983, Salomons et al 1988, Hakanson 1988, Kremling 1988, Skei and Paus 1979, Crecelious et al 1975, Crecelious and Piper 1973, Varnavas et al 1985,Βουτσίνου-Ταλιαδούρη 1988Παπαθεοδώρου 1990, Angelidis et al 1980, Scoullos et al 1989, Scoullos 1979, Scoullos et al 1986, Grimanis et al 1977, Vasilikiotis et al 1982, Kalogeropoulos et al 1989.…”