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342 results on '"Baldantoni, Daniela"'

118. Monitoring of trace elements and PAHs: a combined approach using native bioaccumulators (holm oak leaves and mosses) to detect pollution gradients

Author

De Nicola, F., Alfani, Anna, Baldantoni, Daniela, Bargagli, R., Monaci, F., Sessa, L., Spagnuolo, V., Terracciano, S., Giordano, S., F., De Nicola, A., Alfani, D., Baldantoni, R., Bargagli, F., Monaci, Sessa, Ludovica, Spagnuolo, Valeria, Terracciano, Stefano, and Giordano, Simonetta

Subjects
holm oak, biomonitoring, trace elements, PAH, mo
Abstract

In urban environments, high levels of pollutants, as polycyclic aromatic hydrocarbons (PAHs) and trace elements, coming mainly from anthropogenic sources as vehicular exhausts, industrial emissions and waste incineration, impose serious environmental and biological problems. These pollutants cause concern, especially for their potential toxicity and the adverse health effects. In this work the results of a passive biomonitoring study, concerning the accumulation of trace elements and PAHs in Quercus ilex leaves and in the epiphytic moss Leptodon smithii, are presented. Both biomonitors were sampled in two Italian Regions (Campania and Toscana) along a gradient of environmental disturbance in i) urban, ii) periurban and iii) extraurban areas. Fresh leaves and mosses were extracted by sonication in a mix of methane dichloride and acetone (1:1=v:v) and analysed for 16 EPA PAHs by GC-MS. Oven-dried (75 °C) plant samples were mineralized with acids (HF:HNO3=1:2=v:v) and analysed for elements (Al, B, Ba, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, V and Zn) by AAS and ICP-OES. In both Regions, trace element and PAH concentrations were generally higher in leaves and mosses sampled in urban areas than in periurban and extraurban ones, confirming the suitability of the selected native species to monitor air pollutants in the Mediterranean areas. The high concentrations of some elements in leaves (Mn, Na and Zn) and in mosses (B, Ba, Cd, Mn, Ni and V) from the extraurban site of Toscana, likely due to the influence of marine aerosols and of an industrial settlement located about 40 Km from the sampled area, put in evidence the importance of selecting suitable “reference” sites in order to find out situations at risk and properly evaluate the degree of pollution in urban areas.

Published
2012

147. Heavy metal and polycyclic aromatic hydrocarbon concentrations in Quercus ilex L. leaves fit an a priori subdivision in site typologies based on human management.

Author

De Nicola, Flavia, Baldantoni, Daniela, Maisto, Giulia, and Alfani, Anna

Subjects
POLYCYCLIC aromatic hydrocarbons & the environment, HEAVY metals, ENVIRONMENTAL monitoring, AIR pollution, HOLM oak
Abstract

Concentrations of four heavy metals (HMs) (Cd, Cr, Fe, Pb) and four polycyclic aromatic hydrocarbons (PAHs) (fluoranthene, phenanthrene, chrysene, benzo[a]pyrene) in Quercus ilex L. leaves collected at the Campania Region (Southern Italy) in previous air biomonitoring studies were employed to (1) test the correspondence with an a priori site subdivision (remote, periurban, and urban) and (2) evaluate long temporal trends of HM (approximately 20 years) and PAH (approximately 10 years) air contaminations. Overall, Q. ilex leaf HM and PAH concentrations resulted along the gradient: remote < periurban < urban sites, reflecting the a priori subdivision based on human management. Over a long time, although a clear decrease of leaf Pb, chrysene, fluoranthene, and phenanthrene concentrations occurred at the urban sites, a high contamination level persists. [ABSTRACT FROM AUTHOR]

Published
2017
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150. Andamento stagionale di Cu, Fe, Mn e Zn in foglie di piante della macchia mediterranea cresciute sul compost

Author

DE NICOLA, Flavia, Maisto, G, DE MARCO, A, Arena, C, Vitale, L, Baldantoni, Daniela, Fierro, A, VIRZO DE SANTO, A., Comitato organizzatore XV Congresso Nazionale S.It.E, Claudio Camoglio, Elisa Falsco, Marco Isaia e Giuseppe Maiorana, De Nicola, F., Maisto, Giulia, DE MARCO, Anna, Arena, Carmen, Vitale, Luca, Baldantoni, D., Fierro, Angelo, and Virzo De Santo, A.

Subjects
Mesocosmi, ammendanti organici, Metalli pesanti, nutrienti
Published
2005

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