Annual and seasonal variability of metals and metalloids in urban and industrial soils in Alcalá de Henares (Spain)

Pena-Fernandez, A.; Bedmar, Carmen Lobo; González‐Muñoz, María José

doi:10.1016/j.envres.2014.09.037

Cited by 33 publications

(14 citation statements)

References 49 publications

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“…4). Once SCENA was up and running, no large variations took place in heavy metals behaviour, which are mostly attributable to anthropogenic activities anyway, such as traffic emissions and weather characteristics (Peña-Fernández et al 2015). In fact, the lower impact of terrestrial ecotoxicity reported for sc.…”

Section: Human Toxicity and Terrestrial Ecotoxicitymentioning

confidence: 99%

Is SCENA a good approach for side-stream integrated treatment from an environmental and economic point of view?

Longo

Frison

Renzi³

et al. 2017

Water Research

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The environmental and economic benefits and burdens of including the first Short Cut Enhanced Nutrient Abatement (SCENA) into a real municipal wastewater treatment plant were evaluated using life cycle assessment (LCA) and life cycle cost (LCC). The implications of accomplishing nitrogen (N) removal and phosphorus (P) recovery via nitrite in the side stream were assessed taking into account the actual effluent quality improvement, the changes in the electricity and chemical consumption, NO, CO and CH emissions and the effects of land application of biosolids, among others. In addition, a case-specific estimation of the P availability when sludge is applied to land, therefore replacing conventional fertilizer, was performed. Furthermore, to account for the variability in input parameters, and to address the related uncertainties, Monte Carlo simulation was applied. The analysis revealed that SCENA in the side stream is an economic and environmentally friendly solution compared to the traditional plant layout with no side-stream treatment, thanks to the reduction of energy and chemical use for the removal of N and P, respectively. The uncertainty analysis proved the validity of the LCA results for global warming potential and impact categories related to the consumption of fossil-based electricity and chemicals, while robust conclusions could not be drawn on freshwater eutrophication and toxicity-related impact categories. Furthermore, three optimization scenarios were also evaluated proving that the performance of the WWTP can be further improved by, for instance, substituting gravitational for mechanical thickening of the sludge or changing the operational strategy to the chemically enhanced primary treatment, although this second alternative will increase the operational cost by 5%. Finally, the outcomes show that shifting P removal from chemical precipitation in the main line to biologically enhanced uptake in the side stream is key to reducing chemicals use, thus the operational cost, and increasing the environmental benefit of synthetic fertilizers replacement.

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Section: Human Toxicity and Terrestrial Ecotoxicitymentioning

confidence: 99%

Is SCENA a good approach for side-stream integrated treatment from an environmental and economic point of view?

Longo

Frison

Renzi³

et al. 2017

Water Research

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“…It is generally known that heavy metals are 24 special toxic, bio-accumulative, and resistant to biochemical 25 degradation and also can be readily transferred into human body 26 as a consequence of dermal contact absorption, inhalation, and 27 ingestion [13][14][15]. For example, lead is not an essential element for 28 the human body, however, the nervous, skeletal, circulatory, 29 enzymatic, endocrine, and immune systems can be damaged by 30 excessive intake [16]. Early in 1990, it had been reported that a high 31 lead level in the environment could affect blood lead level, 32 intelligence and behavior [17].…”

Section: Introductionmentioning

confidence: 98%

“…76 Furthermore, the potential heavy metal contamination sources 77 were located optimally by ANN and AGA [25][26][27] Pb and Zn are summarized in Table 1. 127 The overall status of the urban surface soil contaminated by 128 these eight heavy metals were assessed by the Nemerow 129 Comprehensive Index (P) [29,30]: (1) can be represented as follows: …”

Section: Introductionmentioning

confidence: 99%

Source mapping and determining of soil contamination by heavy metals using statistical analysis, artificial neural network, and adaptive genetic algorithm

Zhou

Zhao

Zhao³

et al. 2015

Journal of Environmental Chemical Engineering

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“…As urbanization accelerates, anthropogenic activities introduce large volumes of contaminants into the urban environment, provoking severe heavy-metal pollution in urban soils 1,2 . This has been recognized as a major concern at local, regional and global levels due to the impacts of the contaminants on human health 3 as well as their disruption to the geochemical cycling of the urban ecosystems 4 . Therefore, it is imperative to evaluate and quantify the heavy metal contamination of urban soils and plants as well as to understand their spatial distributions in urban environments.…”

Section: Introductionmentioning

confidence: 99%

Spatial heterogeneity of heavy metal contamination in soils and plants in Hefei, China

Zhang

et al. 2019

Sci Rep

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The contamination of soil and plants with heavy metals, which has detrimental influences on plant growth, water purification, and food safety, has emerged as a serious global issue. To better understand the spatial variations of contamination of heavy metals associated city development and land use types, we collected soil samples and Magnolia grandiflora branches to quantify lead (Pb) and cadmium (Cd) contents of the roadside, industrial, residential, and park greenbelts in Hefei City, China. We found that Pb content in soil was the highest in roadside greenbelts and the lowest in parks with industrial and residential greenbelts being intermediate, while Cd in soil was the highest in greenbelts close to city center and decreased with the distance to city center. Pb in M. grandiflora, however, did not differ among greenbelt types but decreased with distance to the city center. Cd in M. grandiflora was the highest in roadside and lowest in parks and also decreased with the distance to the city center. Across all greenbelt types and the distances to the city center, Pb and Cd contents were positively correlated in soil and plants. Our findings suggest that vehicle traffic, population density, and age of urbanization collectively contribute to soil and plant contamination of Pb and Cd.

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Annual and seasonal variability of metals and metalloids in urban and industrial soils in Alcalá de Henares (Spain)

Cited by 33 publications

References 49 publications

Is SCENA a good approach for side-stream integrated treatment from an environmental and economic point of view?

Is SCENA a good approach for side-stream integrated treatment from an environmental and economic point of view?

Source mapping and determining of soil contamination by heavy metals using statistical analysis, artificial neural network, and adaptive genetic algorithm

Spatial heterogeneity of heavy metal contamination in soils and plants in Hefei, China

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