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Spatial distribution of heavy metals in urban soils of Naples city (Italy).
Environ Pollut. 2003; 124(2):247-56.EP

Abstract

Concentrations of surface and sub-surface soil Cu, Cr, Pb and Zn in the Naples city urban area were measured in 1999. Contourmaps were constructed to describe the metals spatial distribution. In the most contaminated soil samples, metals were speciated by means of the European Commission sequential extraction procedure. At twelve sites, Cu, Pb and Zn levels in soil were compared with those from a 1974 sampling. Many surface soils from the urban area as well as from the eastern industrial district contained levels of Cu, Pb and Zn that largely exceeded the limits (120, 100 and 150 mg kg(-l) for Cu, Pb and Zn, respectively) set for soils of public, residential and private areas by the Italian Ministry of Environment. Chromium values were never above regulatory limits(120 mg kg(-1)). Copper apparently accumulates in soils contiguous to railway lines and tramway. Cu and Cr existed in soil mainly inorganic forms (-68%), whereas Pb occurs essentially as residual mineral phases (77%). The considerable presence of Zn in the soluble, exchangeable and carbonate bound fraction (23%) suggests this element has high potential bioavailability and leachability through the soil. Concentrations of Cu, Pb and Zn have greatly increased since the 1974 sampling, with higher accumulation in soils from roadside fields.

Authors+Show Affiliations

Imperato M
Dipartimento di Scienze della Terra, Università di Naples Federico II, Via Mezzocannone, 8-80134 Naples, Italy. imperato@unina.it
Adamo P
No affiliation info available
Naimo D
No affiliation info available
Arienzo M
No affiliation info available
Stanzione D
No affiliation info available
Violante P
No affiliation info available

MeSH

Chemical FractionationChromiumCitiesCopperEnvironmental MonitoringItalyLeadMetals, HeavySoil PollutantsThreshold Limit ValuesZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12713924

Citation

Imperato, M, et al. "Spatial Distribution of Heavy Metals in Urban Soils of Naples City (Italy)." Environmental Pollution (Barking, Essex : 1987), vol. 124, no. 2, 2003, pp. 247-56.
Imperato M, Adamo P, Naimo D, et al. Spatial distribution of heavy metals in urban soils of Naples city (Italy). Environ Pollut. 2003;124(2):247-56.
Imperato, M., Adamo, P., Naimo, D., Arienzo, M., Stanzione, D., & Violante, P. (2003). Spatial distribution of heavy metals in urban soils of Naples city (Italy). Environmental Pollution (Barking, Essex : 1987), 124(2), 247-56.
Imperato M, et al. Spatial Distribution of Heavy Metals in Urban Soils of Naples City (Italy). Environ Pollut. 2003;124(2):247-56. PubMed PMID: 12713924.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spatial distribution of heavy metals in urban soils of Naples city (Italy). AU - Imperato,M, AU - Adamo,P, AU - Naimo,D, AU - Arienzo,M, AU - Stanzione,D, AU - Violante,P, PY - 2003/4/26/pubmed PY - 2003/9/3/medline PY - 2003/4/26/entrez SP - 247 EP - 56 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 124 IS - 2 N2 - Concentrations of surface and sub-surface soil Cu, Cr, Pb and Zn in the Naples city urban area were measured in 1999. Contourmaps were constructed to describe the metals spatial distribution. In the most contaminated soil samples, metals were speciated by means of the European Commission sequential extraction procedure. At twelve sites, Cu, Pb and Zn levels in soil were compared with those from a 1974 sampling. Many surface soils from the urban area as well as from the eastern industrial district contained levels of Cu, Pb and Zn that largely exceeded the limits (120, 100 and 150 mg kg(-l) for Cu, Pb and Zn, respectively) set for soils of public, residential and private areas by the Italian Ministry of Environment. Chromium values were never above regulatory limits(120 mg kg(-1)). Copper apparently accumulates in soils contiguous to railway lines and tramway. Cu and Cr existed in soil mainly inorganic forms (-68%), whereas Pb occurs essentially as residual mineral phases (77%). The considerable presence of Zn in the soluble, exchangeable and carbonate bound fraction (23%) suggests this element has high potential bioavailability and leachability through the soil. Concentrations of Cu, Pb and Zn have greatly increased since the 1974 sampling, with higher accumulation in soils from roadside fields. SN - 0269-7491 UR - https://www.unboundmedicine.com/medline/citation/12713924/Spatial_distribution_of_heavy_metals_in_urban_soils_of_Naples_city__Italy__ DB - PRIME DP - Unbound Medicine ER -