Search results for "Bioaccumulator"
showing 6 items of 6 documents
Olive wood as possible bioaccumulator of heavy metals: analytical method by ICP-MS. GC-MS analysis
2013
BIOMONITORAGGIO DELL’INQUINAMENTO ATMOSFERICO MEDIANTE L’USO DI LICHENI COME BIOACCUMULATORI NEL CENTRO URBANO DI MARSALA (TP)
2008
È stato avviato uno studio di biomonitoraggio nel centro urbano di Marsala. Come altre città siciliane, pur non essendo interessata da importanti attività industriali, Marsala è caratterizzata da un inquinamento legato ad attività antropiche minori, quali l’uso dei combustibili fossili per autotrazione, per il riscaldamento domestico e per la navigazione. Il contesto geomorfologico in cui si sviluppa la città, ubicata in una zona pianeggiante, non determina alcun ostacolo importante alla circolazione degli inquinanti operata dai forti e costanti venti che spirano dal mare. Il campionamento è stato effettuato nel gennaio 2007 in 27 stazioni distribuite su un’area di circa 25 km2. In ogni sta…
The use of leaves of Olea europaea L. as passive samplers for polycyclic aromatic hydrocarbons. Assessment of the quality of the air in Palermo
2000
Interest in polynuclear aromatic hydrocarbons (PAHS), both from an analytical and an environmental point of view, arises from the fact that although most of them have absolutely no practical use, they are widely diffused into the environment. Their widespread distribution means that every individue is unwittingly exposed to the action of this class of substances, in working environments, in the home and in the open air. In this paper, Oleae europaea leaves have been used as passive samplers. The correlation obtained clearly shows that the quantitative analysis of PAHs in the Olea leaves permits to evaluate the quality of air, in a determined geographic area, without the need of making long …
Absorption of polycyclic aromatic hydrocarbons by pinus bark: analytical method and use for environmental pollution monitoring in the Palermo area (S…
2007
Abstract In the light of using biomaterial as pollutants sorbents for the environmental biomonitoring, we report here the results of the absorption of polycyclic aromatic hydrocarbons (PAHs) by pine bark. Quantitative analysis of 19 different polycyclic aromatic compounds was performed, after Soxhlet extraction in dichloromethane, by means GC–MS technique. Pinus was chosen due to its wide distribution in the Mediterranean area. The passive absorption of PAH by pine bark in the metropolitan areas allowed us to evaluate the air quality of Palermo. The obtained results showed a very high range of PAHs concentrations, from 33 μg/kg (bark dry weight), as ΣPAHs, at the control site to 1015 μg/kg …
Pelargonium leaves as bioaccumulator of polynuclear aromatic hydrocarbons: Analysis and evaluation of sources and air quality in Palermo area
2006
The leaves of Pelargonium zonale have been chosen because this plant is widespread in both the Mediterranean metropolitan and peripheral areas. The paper describes the analytical method, and the results concerning the determination of PAHs in Pelargonium leaves collected in the Palermo area, and their possible origins. The GC-MS method was applied, since identification of all the different compounds with spectra libraries is possible. Samples were analyzed for 22 PAHs. The reported analytical method is complete within 2 hours, and more convenient than that of other researches. Total PAH concentrations in leaves varied between 24-357 g/kg d.w. The relative abundance of the analyzed PAHs can …
Characterization of the Etna volcanic emissions through an active biomonitoring technique (moss-bags): Part 1 – Major and trace element composition
2013
Active biomonitoring using moss-bags was applied to an active volcanic environment for the first time. Bioaccumulation originating from atmospheric deposition was evaluated by exposing mixtures of washed and air-dried mosses (Sphagnum species) at 24 sites on Mt. Etna volcano (Italy). Concentrations of major and a large suite of trace elements were analysed by inductively coupled mass and optical spectrometry (ICP-MS and ICP-OES) after total acid digestion. Of the 49 elements analysed those which closely reflect summit volcanic emissions were S, Tl, Bi, Se, Cd, As, Cu, B, Na, Fe, Al. Enrichment factors and cluster analysis allowed clear distinction between volcanogenic, geogenic and anthropo…