Adsorption and mobility of metals in build-up on road surfaces

Gunawardana, Chandima; Egodawatta, Prasanna; Goonetilleke, Ashantha

doi:10.1016/j.chemosphere.2014.02.048

Cited by 59 publications

(10 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fact that solution-borne Pb was not related to any of the solution-borne Fe, Mn, and Fe suggests that Pb was not predominantly bound to the oxides of these metals. This is not in agreement with many other findings that show Pb is favourably bound to oxides of iron and manganese [32][33][34][35][36]. Previous investigation suggested that Pb in contaminated soils at this site was mainly in the form of lead sulfate [37].…”

Section: Discussioncontrasting

confidence: 95%

Dynamics of Fe, Mn, and Al Liberated from Contaminated Soil by Low-Molecular-Weight Organic Acids and Their Effects on the Release of Soil-Borne Trace Elements

2018

View full text Add to dashboard Cite

A 15-day batch experiment was conducted to investigate the behaviours of Fe, Mn, and Al oxides upon attack by three common low-molecular-weight organic acids, and their effects on liberation of trace elements from a multi-contaminated soil. While the capacity of malic acid to mobilize soil-borne Fe, Mn, and Al was weaker compared to citric and oxalic acids, a similar trend was observed, showing that the concentration of dissolved Fe, Mn, and Al increased with increasing duration of the experiment. Marked increase in metal concentrations only took place after 5 or 7 days of the experiment. For the same organic acid treatment, Fe, Mn, and Al all showed a very similar temporal variation pattern. The concentration of dissolved Fe, Mn, and Al was markedly controlled by the total Fe, Mn, and Al contained in the soil, respectively. It appears that manganese oxides were more reactive to the organic acids, as compared to their Fe and Al counterparts. However, when multiple organic acids were present, the soil-borne Fe, Mn, and Al were mobilized rapidly within the first 5 or 7 days of the experiment and then tended to decrease. The formation of insoluble Fe, Mn, and Al organic complexes tended to be enhanced due to co-existence of multiple organic acids, resulting in the re-immobilization of the dissolved Fe, Mn, and Al. The organic acid-driven dissolution of Fe, Mn, or Al had a major control on the mobilization of As, Cr, Zn, Ni, Cu, and Cd that were bound to these oxides with a correlation coefficient being frequently greater than 0.9 for As, Cr, Zn, and Ni.

show abstract

Section: Discussioncontrasting

confidence: 95%

Dynamics of Fe, Mn, and Al Liberated from Contaminated Soil by Low-Molecular-Weight Organic Acids and Their Effects on the Release of Soil-Borne Trace Elements

2018

View full text Add to dashboard Cite

show abstract

“…Studies on the transport behavior of metals in surface runoff highlight the relevance of metal partitioning in the mass transport (e.g., [24,53,54]). Furthermore knowledge about the partitioning of metals is crucial for the planning and design of adequate stormwater treatment measures [23,24].…”

Section: Partitioning Of Metalsmentioning

confidence: 99%

Adsorption of Metals to Particles in Urban Stormwater Runoff—Does Size Really Matter?

Philipp

Kuch

Dittmer

2021

Water

View full text Add to dashboard Cite

The parameter total suspended solids (TSS) is often used to evaluate the need for stormwater treatment or to assess the effectiveness of treatment measures. The purpose of this study is to analyze the value and the limitations of this approach using metals as an example. They are of major concern due to their accumulating effects in the environment. Data of a monitoring campaign at a stormwater treatment facility is evaluated. TSS, organic matter and the associated metals (Cr, Cu, Zn, Cd, and Pb) were analyzed in four different particle size fractions (<63 µm, 63–125 µm, 125–250 µm, and 250–2000 µm). While the highest event meant concentrations for all metals were found in the smallest fraction, a rather uniform particulate bound metal concentration (mass of metal per mass of particulate matter) over the first three particle size fractions was detected. Total metal loads correlated well with TSS even better with TSS < 63 µm. However, the removal efficiency in terms of the reduction of the total metal load was not reflected sufficiently by the TSS or TSS < 63 µm removal efficiency.

show abstract

“…We further investigated the metal correlations and Cu isotopic fingerprints of the studied PM 2.5 . The metal correlations could indicate shared sources or similar mechanisms of mobility, 43 and the Cu isotopic composition has been used as a novel marker for source tracing of PM 2.5 in European cities due to its retainability during anthropogenic or low-temperature environmental processes. 26 As shown in Figure 2c,d,g, in comparison with the non-SARS period (Pre/After SARS period), the correlated metal pairs (e.g., Fe−Mn, Zn−Pb, and La−Ce) showed remarkable decline trends, and the δ 65 Cu (Cu isotopic composition) distribution range of PM 2.5 was much wider (P = 0.02, unpaired student's t test) during the SARS period.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

New Insights into Unexpected Severe PM_2.5 Pollution during the SARS and COVID-19 Pandemic Periods in Beijing

Zuo

Zong

Zheng

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

During the SARS period in 2003 and COVID-19 pandemic period in 2020, unexpected severe particulate matter pollution occurred in northern China, although the anthropogenic activities and associated emissions have assumed to be reduced dramatically. This anomalistic increase in PM2.5 pollution raises a question about how source emissions impact the air quality during these pandemic periods. In this study, we investigated the stable Cu and Si isotopic compositions and typical source-specific fingerprints of PM2.5 and its sources. We show that the primary PM2.5 emissions (PM2.5 emitted directly from sources) actually had no reduction but redistribution during these pandemic periods, rather than the previous thought of being greatly reduced. This finding provided critical evidence to interpret the anomalistic PM2.5 increase during the pandemic periods in north China. Our results also suggested that both the energy structure adjustment and stringent regulations on primary emissions should be synergistically implemented in a regional scale for clean air actions in China.

show abstract

Adsorption and mobility of metals in build-up on road surfaces

Cited by 59 publications

References 20 publications

Dynamics of Fe, Mn, and Al Liberated from Contaminated Soil by Low-Molecular-Weight Organic Acids and Their Effects on the Release of Soil-Borne Trace Elements

Dynamics of Fe, Mn, and Al Liberated from Contaminated Soil by Low-Molecular-Weight Organic Acids and Their Effects on the Release of Soil-Borne Trace Elements

Adsorption of Metals to Particles in Urban Stormwater Runoff—Does Size Really Matter?

New Insights into Unexpected Severe PM_2.5 Pollution during the SARS and COVID-19 Pandemic Periods in Beijing

Contact Info

Product

Resources

About

Adsorption and mobility of metals in build-up on road surfaces

Cited by 59 publications

References 20 publications

Dynamics of Fe, Mn, and Al Liberated from Contaminated Soil by Low-Molecular-Weight Organic Acids and Their Effects on the Release of Soil-Borne Trace Elements

Dynamics of Fe, Mn, and Al Liberated from Contaminated Soil by Low-Molecular-Weight Organic Acids and Their Effects on the Release of Soil-Borne Trace Elements

Adsorption of Metals to Particles in Urban Stormwater Runoff—Does Size Really Matter?

New Insights into Unexpected Severe PM2.5 Pollution during the SARS and COVID-19 Pandemic Periods in Beijing

Contact Info

Product

Resources

About

New Insights into Unexpected Severe PM_2.5 Pollution during the SARS and COVID-19 Pandemic Periods in Beijing