Assessment of Trace Metals Leaching During Rainfall Events from Building Rooftops with Different Types of Coverage – Case Study

Nawrot, Nicole; Wojciechowska, Ewa

doi:10.12911/22998993/85410

Cited by 8 publications

(6 citation statements)

References 8 publications

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“…When comparing this report to our study it is obvious that the Cu concentration measured at Orłowska IN (1114 mg/kg d.w.) is over two times as high. Increased concentrations of Cu can be associated with the presence of numerous copper roofs in the catchment area there [50]. Large density of such roofs is located nearby Grunwaldzka RT.…”

Section: The Watershed Pollutionmentioning

confidence: 99%

Heavy Metals in Sediments of Urban Streams: Contamination and Health Risk Assessment of Influencing Factors

et al. 2019

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Sediments of two urban streams in northern Poland outflowing to the Baltic Sea were assessed to explain the spatial variation in relation to urbanization level of the catchment, the role of retention tanks (RTs) and identification of pollution level. During the 3 month period of investigation sediment samples were collected from the inflow (IN) and outflow (OUT) of six RTs located on streams for flood protection. Six heavy metals (HMs) were investigated: Cu, Pb, Zn, Cd, Ni, Cr. The assessment of four geochemical enrichment indices used to quantify contamination of HMs in the sediments at IN and OUT samples was carried out. Contamination factor (CF), pollution load index (PLI), geoaccumulation index (Igeo) and potential ecological risk (RI) were calculated and the indices usefulness was assessed. Also, the hazard quotient (HQ) was calculated to assess health risk associated with dredging works. In sediments from RTs where paved surfaces constituted more than 70% of the catchment the HMs concentrations were from one to three times higher for Ni and from two to 143 times higher for Cu in comparison to soft catchment results. The extremely high Cu concentration (1114 mg/kg d.w.) found in sediments at RT Orłowska IN was most likely associated with large area of roofs covered with copper sheet. Calculation of CF, PLI, Igeo, RI, HQ indicators allows for a complex and multi-dimensional assessment of sediment status. Among these, CF and PLI classified the analyzed sediments as most polluted. Basing on the sedimentary HMs concentrations the health risk level via dermal exposure pathway was assessed as low.

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Section: The Watershed Pollutionmentioning

confidence: 99%

Heavy Metals in Sediments of Urban Streams: Contamination and Health Risk Assessment of Influencing Factors

et al. 2019

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“…High Pb values in Lamprea & Ruban (2008) are explained by the use of a PVC gutter. No explanation for the high concentrations of other heavy metals in bitumen roof runoff is given in this study and also in the studies of Van Seters et al (2009) and Nawrot & Wojciechowska (2018).…”

Section: Bitumen Roofsmentioning

confidence: 60%

“…No obvious concentration difference between bitumen roof and concrete tile roof runoff was detected in the study by Nosrati (2017). Nawrot & Wojciechowska (2018) collected data from the copper roofs, clay tile roof, and bitumen roof runoffs during the first 15 min of rainfall. Runoff from the bitumen roof showed the greatest mean concentrations of Al (152 μg/L), Cd (0.60 μg/L), Pb (6.00 μg/ L), and Zn (15,520 μg/L).…”

Section: Bitumen Roofsmentioning

confidence: 85%

“…Runoff from the bitumen roof showed the greatest mean concentrations of Al (152 μg/L), Cd (0.60 μg/L), Pb (6.00 μg/ L), and Zn (15,520 μg/L). The roughness and lower inclination angle compared to the other roofs are seen as reasons for the highest Pb and Al concentrations in bitumen roof runoff and no explanation for the other parameters are given (Nawrot & Wojciechowska, 2018). As the study of Nawrot & Wojciechowska (2018) analyzed only the first flush, the data are not listed in Table 7, which summarizes runoff concentrations of bitumen roofs.…”

Section: Bitumen Roofsmentioning

confidence: 99%

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Review on inorganic pollutants in stormwater runoff of non-metal roofs

Degenhart

2022

Front. Environ. Chem.

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Metal roofs have always been in the focus of stormwater runoff contamination. However, other roofing materials are also suspected of releasing metals and other inorganic substances with stormwater runoff. Hence, this review focuses on the impact of commonly used non-metal roofs - vegetated and non-vegetated - on stormwater runoff quality. Results from 42 studies were compiled and assessed to gain an overview of substances in runoff from nine roofing types with a special focus on green roofs. Concentrations of 27 substances including nutrients, heavy metals, and other inorganic substances were compared. Results show that the nine roof types that were assessed can be a potential source for inorganic substances in the runoff. Threshold values for groundwater protection are exceeded especially for PO43-, Cu, Pb, and Zn for some roofing materials. As the concentrations vary strongly for different parameters, no roofing material can be identified as clearly superior or inferior to the others. Gravel roofs act as a sink for NH4+ and can retain some heavy metals. Elevated heavy metal concentrations were found in runoff from wood shingle roofs treated with preservative chemicals and in runoff from most roofing types usually due to the used gutter materials. Green roof runoff shows increased concentrations of Ptot, PO43-, Na, K, Ca, and Mg. The concentrations depend strongly on the green roof age, the growth substrate, and applied fertilizers. In addition to the roofing materials, external factors dependent on the location (rural or urban site) influence the runoff quality. Runoff from the analyzed roofs must be seen as a diffuse source of environmental pollution and requires appropriate treatment before it is released into the environment or used for further applications. Overall, there are only a few studies on the topic so it is not possible to make statistically significant statements. More serious in-depth studies are urgently needed.

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“…Water carries the pollutants emitted during the exploitation of urban areas (heavy metals, organic compounds, mainly petroleum substances and polycyclic aromatic hydrocarbons, biogens, dissolved salts, and suspensions) that, consequently, are driven to water receivers, e.g. to the soil/water system (Nawrot and Wojciechowska 2018). Currently, the runoff water is a problem not only due to its volume, but also its quality.…”

Section: Introductionmentioning

confidence: 99%

Properties of Reactive Materials for Application in Runoff Water Treatment Systems

Fronczyk¹

2020

J. Ecol. Eng.

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The emissions related to urbanized areas, including communication routes and accompanying facilities, are considered as essential sources of subsoil pollution. Enhancement of the naturally occurring removal processes in infiltration systems, e.g. through placing the appropriately selected materials (treatment zones) on the flow path of runoff water, prevents the spread of undesirable components. The article presents the analysis of tests checking the properties of selected low-cost mineral materials, activated carbon and zero-valent iron in terms of their applicability in the runoff water treatment zones. Their physical features, surface structure, and chemical and hydraulic properties were analysed. The test results indicate a well-developed surface area of active carbon and halloysite, as well as an extensive pore volume of active carbon, halloysite, zeolite and diatomite. Nevertheless, the average pore diameters indicated the potential limited access of pollutants to the inner structure of all analyzed materials. The chemical parameters point to the stimulation potential of precipitation processes by limestone sand and silica spongolite, ion exchange by zeolite and silica spongolite, and oxidation-reduction processes by zero-valent iron. The value of the material hydraulic conductivity may potentially limit their application in infiltration systems. Taking into account all analyzed parameters, activated carbon together with silica spongolite and zeolite have the best application potential.

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Assessment of Trace Metals Leaching During Rainfall Events from Building Rooftops with Different Types of Coverage – Case Study

Cited by 8 publications

References 8 publications

Heavy Metals in Sediments of Urban Streams: Contamination and Health Risk Assessment of Influencing Factors

Heavy Metals in Sediments of Urban Streams: Contamination and Health Risk Assessment of Influencing Factors

Review on inorganic pollutants in stormwater runoff of non-metal roofs

Properties of Reactive Materials for Application in Runoff Water Treatment Systems

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