Contamination and risk assessment of metals in road-deposited sediments in a medium-sized city of China

Bian, Bo; Lin, Cheng; Wu, Hai

doi:10.1016/j.ecoenv.2014.10.030

Cited by 37 publications

(12 citation statements)

References 38 publications

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“…Therefore, resuspended dust in industrial areas is higher than that in urban areas owing to the accumulation of large amounts of RD and the increase in traffic-induced turbulence by large trucks. The fine particles present in RD are inhaled by humans and may have harmful effects on the respiratory system [75,76].…”

Section: Discussionmentioning

confidence: 99%

Pollution Caused by Potentially Toxic Elements Present in Road Dust from Industrial Areas in Korea

et al. 2020

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We examined the pollution characteristics of potentially toxic elements (PTEs) in road dust (RD) from nine industrial areas in South Korea to assess PTE pollution levels and their environmental risks for devising better strategies for managing RD. The median concentrations (mg/kg) were in the order Zn (1407) > Cr (380) > Cu (276) > Pb (260) > Ni (112) > As (15) > Cd (2) > Hg (0.1). The concentration of PTEs was the highest at the Onsan Industrial Complex, where many smelting facilities are located. Our results show that Onsan, Noksan, Changwon, Ulsan, Pohang, and Shihwa industrial areas are heavily polluted with Cu, Zn, Cd, and Pb. The presence of these toxic elements in RD from the impervious layer in industrial areas may have a moderate to severe effect on the health of the biota present in these areas. The potential ecological risk index (Eri) for PTEs was in the decreasing order of Cd > Pb > Hg > Cu > As > Zn > Ni > Cr, indicating that the dominant PTE causing ecological hazards is Cd owing to its high toxicity. Our research suggests the necessity for the urgent introduction of an efficient management strategy to reduce RD, which adds to coastal pollution and affects human health.

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Section: Discussionmentioning

confidence: 99%

Pollution Caused by Potentially Toxic Elements Present in Road Dust from Industrial Areas in Korea

et al. 2020

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“…Obtaining accurate estimates of the parameters of RDS emission should be of the utmost concern when quantifying RDS washoff loads. The particle size distribution is an important parameter because it determines the mobility of the RDS and the pollutant concentration as particles of particular sizes are transported in runoff [ 6 , 25 , 26 ]. Therefore, grain-size heterogeneity or variability could strongly influence the accuracy with which particulate pollutant mass loss can be estimated [ 27 , 28 ].…”

Section: Discussionmentioning

confidence: 99%

Quantifying Grain-Size Variability of Metal Pollutants in Road-Deposited Sediments Using the Coefficient of Variation

Zhao

Wang

2017

IJERPH

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Particle grain size is an important indicator for the variability in physical characteristics and pollutants composition of road-deposited sediments (RDS). Quantitative assessment of the grain-size variability in RDS amount, metal concentration, metal load and GSFLoad is essential to elimination of the uncertainty it causes in estimation of RDS emission load and formulation of control strategies. In this study, grain-size variability was explored and quantified using the coefficient of variation (Cv) of the particle size compositions, metal concentrations, metal loads, and GSFLoad values in RDS. Several trends in grain-size variability of RDS were identified: (i) the medium class (105–450 µm) variability in terms of particle size composition, metal loads, and GSFLoad values in RDS was smaller than the fine (<105 µm) and coarse (450–2000 µm) class; (ii) The grain-size variability in terms of metal concentrations increased as the particle size increased, while the metal concentrations decreased; (iii) When compared to the Lorenz coefficient (Lc), the Cv was similarly effective at describing the grain-size variability, whereas it is simpler to calculate because it did not require the data to be pre-processed. The results of this study will facilitate identification of the uncertainty in modelling RDS caused by grain-size class variability.

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“…Los resultados también evidenciaron tendencias particulares en el comportamiento de las concentraciones de MP asociadas con el SV. Al respecto, se reportó que la concentración de MP tendió a aumentar a medida que disminuyó el diámetro de la partícula del SV [45], [46]. Es decir, las estrategias de control de la contaminación por MP deberían posiblemente enfocarse sobre la fracción más fina del SV (< 250 μm).…”

Section: Metales Pesadosunclassified

Tendencias metodológicas en la evaluación del grado de contaminación y de riesgos por metales pesados presentes en sedimentos viales urbanos

Goya-Heredia¹,

Zafra-Mejía²,

Rodríguez-Miranda³

2020

revuin

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El objetivo principal de este artículo es analizar las tendencias a nivel mundial en el uso de métodos para evaluar la contaminación por metales pesados (MP) asociados con el sedimento vial (SV) urbano. Se realizó una revisión sistemática de literatura entre los años 1995-2018. Se empleó un índice de frecuencia de citación con el fin de establecer un orden de importancia para las categorías detectadas. Los resultados muestran el siguiente ordende importancia para las categorías detectadas: enriquecimiento metálico (87,0%) > riesgo sobre la salud (55,8%) > riesgo ambiental (35,1%). Los métodos de preferencia mundial para cada una de las categorías son el índice de geo-acumulación (55,8%), cociente de riesgo no cancerígeno (50,6%) e índice de riesgo ecológico (31,2%), respectivamente. Estas preferencias están posiblemente condicionadas por la existencia local de información de concentraciones de fondo de MP, dosis diarias de inhalación de partículas vinculadas a SV, factores de toxicidad por ingesta/contacto dérmico con MP, y factores de emisión de partículas de SV. Los MP de mayor relevancia son Pb (97,4%), Cu (93,5%) y Zn (89,6%). No obstante, también se destacan Cr-Cd-As por su elevado riesgo ecológico y cancerígeno.

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Contamination and risk assessment of metals in road-deposited sediments in a medium-sized city of China

Cited by 37 publications

References 38 publications

Pollution Caused by Potentially Toxic Elements Present in Road Dust from Industrial Areas in Korea

Pollution Caused by Potentially Toxic Elements Present in Road Dust from Industrial Areas in Korea

Quantifying Grain-Size Variability of Metal Pollutants in Road-Deposited Sediments Using the Coefficient of Variation

Tendencias metodológicas en la evaluación del grado de contaminación y de riesgos por metales pesados presentes en sedimentos viales urbanos

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