Comparison of pollutant source tracking approaches: Heavy metals deposited on urban road surfaces as a case study

2020 ◽  
Vol 266 ◽  
pp. 115253
Author(s):  
Nian Hong ◽  
Bo Yang ◽  
Daniel C.W. Tsang ◽  
An Liu
Keyword(s):  
Heavy Metals ◽  
Source Tracking ◽  
Urban Road ◽  
Road Surfaces ◽  
Pollutant Source

scholarly journals Adsorption of heavy metals by road deposited solids

2013 ◽  
Vol 67 (11) ◽  
pp. 2622-2629 ◽  
Author(s):  
Chandima Gunawardana ◽  
Ashantha Goonetilleke ◽  
Prasanna Egodawatta
Keyword(s):  
Heavy Metals ◽  
Kinetic Studies ◽  
Field Studies ◽  
Water Soluble ◽  
Trivalent Cation ◽  
Urban Road ◽  
High Charge Density ◽  
Road Surfaces ◽  
Adsorption Desorption ◽  
Exchangeable Form

The research study discussed in the paper investigated the adsorption/desorption behaviour of heavy metals commonly deposited on urban road surfaces, namely, Zn, Cu, Cr and Pb, for different particle size ranges of solids. The study outcomes, based on field studies and batch experiments, confirmed that road deposited solids particles contain a significantly high amount of vacant charge sites with the potential to adsorb additional heavy metals. Kinetic studies and adsorption experiments indicated that Cr is the most preferred metal element to associate with solids due to the relatively high electronegativity and high charge density of trivalent cation (Cr3+). However, the relatively low availability of Cr in the urban road environment could influence this behaviour. Comparing total adsorbed metals present in solids particles, it was found that Zn has the highest capacity for adsorption to solids. Desorption experiments confirmed that a low concentration of Cu, Cr and Pb in solids was present in water-soluble and exchangeable form, whilst a significant fraction of adsorbed Zn has a high likelihood of being released back into solution. Among heavy metals, Zn is considered to be the most commonly available metal among road surface pollutants.

Quantitative source tracking of heavy metals contained in urban road deposited sediments

2020 ◽  
Vol 393 ◽  
pp. 122362 ◽  
Author(s):  
Nian Hong ◽  
Yingjie Guan ◽  
Bo Yang ◽  
Jie Zhong ◽  
Panfeng Zhu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Source Tracking ◽  
Urban Road

scholarly journals Analysis of build-up of heavy metals and volatile organics on urban roads in gold coast, Australia

2011 ◽  
Vol 63 (9) ◽  
pp. 2077-2085 ◽  
Author(s):  
Parvez Mahbub ◽  
Ashantha Goonetilleke ◽  
Godwin A. Ayoko ◽  
Prasanna Egodawatta ◽  
Tan Yigitcanlar
Keyword(s):  
Heavy Metals ◽  
Gold Coast ◽  
Particulate Fraction ◽  
Strong Correlations ◽  
Volatile Organics ◽  
Urban Road ◽  
Urban Water Quality ◽  
Road Surfaces ◽  
Volatile Organic ◽  
Volatile Organic Pollutants

Urban water quality can be significantly impaired by the build-up of pollutants such as heavy metals and volatile organics on urban road surfaces due to vehicular traffic. Any control strategy for the mitigation of traffic related build-up of heavy metals and volatile organic pollutants should be based on the knowledge of their build-up processes. In the study discussed in this paper, the outcomes of a detailed experimental investigation into build-up processes of heavy metals and volatile organics are presented. It was found that traffic parameters such as average daily traffic, volume over capacity ratio and surface texture depth had similar strong correlations with the build-up of heavy metals and volatile organics. Multicriteria decision analyses revealed that that the 1–74 μm particulate fraction of total suspended solids (TSS) could be regarded as a surrogate indicator for particulate heavy metals in build-up and this same fraction of total organic carbon could be regarded as a surrogate indicator for particulate volatile organics build-up. In terms of pollutants affinity, TSS was found to be the predominant parameter for particulate heavy metals build-up and total dissolved solids was found to be the predominant parameter for the potential dissolved particulate fraction in heavy metals buildup. It was also found that land use did not play a significant role in the build-up of traffic generated heavy metals and volatile organics.

scholarly journals Role of Solids in Heavy Metals Buildup on Urban Road Surfaces

2012 ◽  
Vol 138 (4) ◽  
pp. 490-498 ◽  
Author(s):  
Chandima Gunawardana ◽  
Ashantha Goonetilleke ◽  
Prasanna Egodawatta ◽  
Les Dawes ◽  
Serge Kokot
Keyword(s):  
Heavy Metals ◽  
Urban Road ◽  
Road Surfaces

scholarly journals Sources and transport pathways of common heavy metals to urban road surfaces

2015 ◽  
Vol 77 ◽  
pp. 98-102 ◽  
Author(s):  
Janaka Gunawardena ◽  
Abdul M. Ziyath ◽  
Prasanna Egodawatta ◽  
Godwin A. Ayoko ◽  
Ashantha Goonetilleke
Keyword(s):  
Heavy Metals ◽  
Transport Pathways ◽  
Urban Road ◽  
Road Surfaces

Pollutant Source Tracking (PST) Technical Guidance

2011 ◽  
Author(s):  
Meriah Arias-Thode ◽  
Stacy Curtis ◽  
Robert George ◽  
Heather Halkola ◽  
Jim Leather ◽  
...  
Keyword(s):  
Source Tracking ◽  
Pollutant Source ◽  
Technical Guidance

Farmland heavy metals can migrate to deep soil at a regional scale: A case study on a wastewater-irrigated area in China

2021 ◽  
Vol 281 ◽  
pp. 116977
Author(s):  
Shushen Yang ◽  
Wenzhao Feng ◽  
Shiqin Wang ◽  
Liang Chen ◽  
Xin Zheng ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Regional Scale ◽  
Deep Soil ◽  
Irrigated Area

scholarly journals Should We Expect a Disastrous Fire Accident in an Urban Road Tunnel? Literature Data Review and a Case Study for Selected Tunnels in Poland

2021 ◽  
Vol 13 (11) ◽  
pp. 6172
Author(s):  
Krystian Szewczyński ◽  
Aleksander Król ◽  
Małgorzata Król
Keyword(s):  
Time Horizon ◽  
Road Traffic ◽  
Traffic Intensity ◽  
Road Tunnel ◽  
Urban Road ◽  
Road Tunnels ◽  
High Uncertainty ◽  
Fire Outbreak ◽  
Fire Accident

Urban road tunnels are a reasonable remedy for inconvenience due to congested road traffic. However, they bring specific threats, especially those related to the possibility of fire outbreak. This work is a case study for selected urban road tunnels. Considering tunnel specificity, road traffic intensity, and structure and based on the literature data for vehicle fire probability, the chances of a fire accident were estimated for selected tunnels in Poland. It was shown that low power tunnel fires could be expected in the 10–20-year time horizon. Although such threats cannot be disregarded, tunnel systems are designed to cope with them. The chances of a disastrous fire accident were estimated as well. Such events can occur when an HGV with flammable goods or a tanker are involved. Such accidents are fortunately very rare, but, on the other hand, that is the reason why the available data are scanty and burdened with high uncertainty. Therefore, a discussion on the reliability of the obtained results is also provided.

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