Leaf accumulation of trace elements and polycyclic aromatic hydrocarbons (PAHs) in Quercus ilex L.
Quercus ilex L. leaves were collected four times in one year at six urban sites and one remote area in order to determine trace element and PAH accumulation through concomitant analyses of unwashed and water-washed leaves. Both unwashed and washed leaves showed the highest amounts of trace elements and PAHs in the urban area. Unwashed leaves showed greater differences between urban and remote areas and among the urban sites than washed leaves for trace element and PAH concentrations. Water-washing resulted in a significant (P<0.001) decrease in leaf concentrations of Cr, Cu, Fe, Pb, V and Zn. By contrast, Cd and total PAH concentrations showed no differences between unwashed and washed leaves.
De Nicola
F
F
Università degli Studi del Sannio, via Port'Arsa 11, 82100 Benevento, Italy. flavia.denicola@unisannio.it
Maisto
G
G
Prati
M V
MV
Alfani
A
A
D000393:Air Pollutants / Q000032:analysis*; D002104:Cadmium / Q000032:analysis; D002857:Chromium / Q000032:analysis; D002947:Cities; D003300:Copper / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D007501:Iron / Q000032:analysis; D007558:Italy; D007854:Lead / Q000032:analysis; D018515:Plant Leaves / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D029963:Quercus; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis*; D014639:Vanadium / Q000032:analysis; D015032:Zinc / Q000032:analysis
D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D014131:Trace Elements; D002104:Cadmium; D014639:Vanadium; D002857:Chromium; D007854:Lead; D003300:Copper; D007501:Iron; D015032:Zinc