Influences of land use and antecedent dry-weather period on pollution level and ecological risk of heavy metals in road-deposited sediment

Zhang, Jin; Hua, Pei; Krebs, Peter

doi:10.1016/j.envpol.2017.05.029

Cited by 121 publications

(43 citation statements)

References 42 publications

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“…Urban soil could be frequently disturbed and resuspended due to dense population and heavy traffic, so the people in urban regions could easily be exposed to metals in the soil via three routes: direct dermal contact or dust inhalation and indirect input as a result of ingestion (in the form of contaminated food products). Roadside deposited dust from traffic emissions (as well as from the combustion of solid fuels) is of particular concern as being a carrier of potentially toxic elements, as it may pose a health risk [ 7 , 8 , 9 , 10 ]. Metals in urban soils are considered as very useful indicators of environmental pollution [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…Roadside deposited dust from traffic emissions (as well as from the combustion of solid fuels) is of particular concern as being a carrier of potentially toxic elements, as it may pose a health risk [ 7 , 8 , 9 , 10 ]. Metals in urban soils are considered as very useful indicators of environmental pollution [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…The analysis of metal content in urban soils is the subject of numerous publications [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Particular attention is paid to green areas due to their use for recreation and the possibility of people’s exposure to contact with contaminated soil [ 2 , 9 , 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comprehensive Evaluation of Metal Pollution in Urban Soils of a Post-Industrial City—A Case of Łódź, Poland

et al. 2020

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The pollution of urban soils by metals is a global problem. Prolonged exposure of habitants who are in contact with metals retained in soil poses a health risk. This particularly applies to industrialized cities with developed transport networks. The aim of the study was to determine the content and spatial distribution of mobile metal fractions in soils of the city of Łódź and to identify their load and sources. Multivariate statistical analysis (principal component analysis (PCA), cluster analysis (CA)), combined with GIS, were used to make a comprehensive evaluation of the soil contamination. Hot-spots and differences between urban and suburban areas were also investigated. Metals were determined by atomic absorption spectrometry (AAS) after soil extraction with 1 mol L−1 HCl. In most sites, the metal content changes in the following order: Zn > Pb > Cu > Ni > Cd. About one-third of the samples are considerably (or very highly) contaminated, (contamination factor, CF > 3) with Cu, Pb, or Zn. In almost 40% of the samples, contaminated soils were found (pollution load index, PLI > 1). All metals have a strong influence on the first principal component (PC1), whereas second principal component (PC2) is related to pH. Polluted soils are located in the downtown, in the south and east part of the city. The distribution of contamination coincides with the urban layout, low emission sources and former industrial areas of Łódź.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comprehensive Evaluation of Metal Pollution in Urban Soils of a Post-Industrial City—A Case of Łódź, Poland

et al. 2020

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“…Among them, heavy metals in road dust can remain in urban environments for a long time or be re-suspended into the atmosphere, and thus pose a potential threat to local ecosystems and public health [8]. Moreover, heavy metals are priority environmental pollutants which are obviously cyto-toxic, concealed, persistent, and biological accumulated [9,10]. They may cause permanent harm to the ecosystem and the human [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of heavy metal pollution risk associated with road sediment

Newaz

Pal

Hossain

et al. 2020

Environmental Engineering Research

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A detailed investigation has been conducted to assess the heavy metal pollution risk associated with the road deposited sediment collected from the 32 major road sites in Chittagong city. The acid digestion of road sediments for metals extraction was carried out prior to determine total concentrations of Zn, Pb, Cr, Cu, Ni, Cd by using Polarized Zeeman Atomic Absorption Spectrophotometer (Z-2000) following standard analytical protocol. The contamination and pollution risk level were assessed using degree of contamination, potential ecological risk index and integrated pollution index. The study revealed that the mean heavy metal concentrations of Zn, Pb, Cr, Cu, Ni, Cd were found as 975, 84, 77, 74, 32, 1.6 mg/kg, respectively, across the road sites in Chittagong city. The mean concentrations are found 1.1 to 44 times higher in comparison to soil background, signifying relatively greater enrichment for Zn, Cd and Pb across the sites, suggesting vehicular emission on roads with site-specific characteristics. Based on pollution indices, Ruby Cement, City Gate and Enayeth Bazar road sites pose high risk, while eight other sites are found with moderate to considerable risk potential, and remaining 21 sites pose low to moderate risk potential.

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“…It was agreed that the metric that was applied in the simulation testing would be the regional removal targets, as shown in Table 1, with the addition of heavy metals zinc, copper, nickel, cadmium, lead, and chromium, because of their known association with road runoff and their potential ecotoxicity [10][11][12]. Heavy metal indicators in road runoff have also been shown to exhibit strong correlation, with hydrocarbon indicators such as BTEXN (benzene, toluene, ethylbenzene, xylenes, and naphthalene), TRH (total recoverable hydrocarbons), and PAH [13,14].…”

Section: Introductionmentioning

confidence: 99%

Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters

Macnamara

Derry

2017

Water

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Abstract:The City of Sydney is constructing more than 21,000 square metres of street biofilter units (raingardens) in terms of their Decentralised Water Master Plan (DWMP), for improving the quality of stormwater runoff to Port Jackson, the Cooks River, and the historical Botany Bay. Recharge of the Botany Sand Beds aquifer, currently undergoing remediation by extraction of industrial chlorinated hydrocarbon pollutants, is also envisaged. To anticipate the pollution removal efficiency of field biofilter designs, laboratory soil-column simulations were developed by Western Sydney University partnered with the City. Synthetic stormwater containing stoichiometric amounts of high-solubility pollutant salts in deionised water was passed through 104 mm columns that were layered to simulate monophasic and biphasic field designs. Both designs met the City's improvement targets for total nitrogen (TN) and total phosphorus (TP), with >65% median removal efficiency. Prolonged release of total suspended solids (SS) on startup emphasised the need for specifications and testing of proprietary fills. Median removal efficiency for selected heavy metal ecotoxicants was >75%. The researchers suggested that Zinc be added to the targets as proxy for metals, polycyclic aromatic hydrocarbons (PAH) and oils/greases co-generated during road use. Simulation results suggested that field units will play an important role in meeting regional stormwater improvement targets.

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Influences of land use and antecedent dry-weather period on pollution level and ecological risk of heavy metals in road-deposited sediment

Cited by 121 publications

References 42 publications

Comprehensive Evaluation of Metal Pollution in Urban Soils of a Post-Industrial City—A Case of Łódź, Poland

Comprehensive Evaluation of Metal Pollution in Urban Soils of a Post-Industrial City—A Case of Łódź, Poland

Evaluation of heavy metal pollution risk associated with road sediment

Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters

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