Inorganic matter from roadway dust collected in the urban area of Palermo, Italy, was analysed to identify the chemical elements introduced into the environment as a result of human activities. Metals of environmental concern exhibit very high enrichment factors, which in some cases exceed 100. Metal size distribution indicates that Pd, Pt, Au, Sb, Zn, S, Ni, V, Mo and Cr substantially accumulate in the finest particles, whereas Pb, Br, As, Cu, Ag and Ba are almost independent of the size fraction. SEM/EDS analyses revealed that some individual particles contain clusters of foreign particles (<10 pm) made up of Fe-Ni, Cr-Ni or Fe alone, typical of the abrasion of stainless steel. Others are aggregates of smaller Pb-Br-Cl particles. Lead isotope composition indicates that Pb pollution is mainly due to automobile exhausts and industrial sources. Pt and Pd concentrations reveal the increasing release of these elements into the environment from catalytic converters. Data indicate that monitoring Total Solid Particles, as generally done by the municipal agencies for the environment, is inadequate from a sanitary point of view, while there is a need for more attention to the presence of trace elements in airborne particulate matter and their distribution as a function of particle size.

Varrica, D., Dongarrà, G., Sabatino, G., & Monna, F. (2003). Inorganic geochemistry of roadway dust from the metropolitan area of Palermo, Italy. ENVIRONMENTAL GEOLOGY, 44, 222-230 [10.1007/s00254-002-0748-z].

Inorganic geochemistry of roadway dust from the metropolitan area of Palermo, Italy

VARRICA, Daniela;DONGARRA', Gaetano;
2003

Abstract

Inorganic matter from roadway dust collected in the urban area of Palermo, Italy, was analysed to identify the chemical elements introduced into the environment as a result of human activities. Metals of environmental concern exhibit very high enrichment factors, which in some cases exceed 100. Metal size distribution indicates that Pd, Pt, Au, Sb, Zn, S, Ni, V, Mo and Cr substantially accumulate in the finest particles, whereas Pb, Br, As, Cu, Ag and Ba are almost independent of the size fraction. SEM/EDS analyses revealed that some individual particles contain clusters of foreign particles (<10 pm) made up of Fe-Ni, Cr-Ni or Fe alone, typical of the abrasion of stainless steel. Others are aggregates of smaller Pb-Br-Cl particles. Lead isotope composition indicates that Pb pollution is mainly due to automobile exhausts and industrial sources. Pt and Pd concentrations reveal the increasing release of these elements into the environment from catalytic converters. Data indicate that monitoring Total Solid Particles, as generally done by the municipal agencies for the environment, is inadequate from a sanitary point of view, while there is a need for more attention to the presence of trace elements in airborne particulate matter and their distribution as a function of particle size.
Settore GEO/08 - Geochimica E Vulcanologia
Varrica, D., Dongarrà, G., Sabatino, G., & Monna, F. (2003). Inorganic geochemistry of roadway dust from the metropolitan area of Palermo, Italy. ENVIRONMENTAL GEOLOGY, 44, 222-230 [10.1007/s00254-002-0748-z].
File in questo prodotto:
File Dimensione Formato  
Env Geol roaddust.pdf

Solo gestori archvio

Dimensione 366.98 kB
Formato Adobe PDF
366.98 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/227009
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 109
  • ???jsp.display-item.citation.isi??? 95
social impact