scholarly journals Level of Contamination Assessment of Potentially Toxic Elements in the Urban Soils of Volos City (Central Greece)

2021 ◽  
Vol 13 (4) ◽  
pp. 2029
Author(s):  
Evangelia E. Golia ◽  
Sotiria G. Papadimou ◽  
Christos Cavalaris ◽  
Nikolaos G. Tsiropoulos
Keyword(s):  
Urban Soils ◽  
Toxic Elements ◽  
Heavy Traffic ◽  
Contamination Factor ◽  
Potentially Toxic Elements ◽  
Pollution Indices ◽  
Contamination Assessment ◽  
Average Value ◽  
Accumulation Index ◽  
Urban Complex

A three-year study, designed to record the level of potentially toxic elements within the urban complex in the city of Volos, Greece, was carried out between 2018 and 2020. For the needs of the aforementioned study, 62 surface (0–15 cm) soil samples were collected each year (i.e., 186 samples in total) from an urban area of 3.65 km2, and the average value of pseudo-total metal concentration was measured. Soil pollution indices, such as the contamination factor (CF) and the geo-accumulation index (Igeo), were estimated regarding each of the metals of interest. The respective thematic maps were constructed, and the spatial variability of the contamination degree was displayed. Higher values of the CF and Igeo were obtained near the heavy traffic roads and beside the railway station, the bus stations, and the commercial port. The maps based on the pollution indices, along with the database that was constructed using the appropriate mathematical tools of geostatistical analysis, may be a useful tool for monitoring, prediction, and continuous verification of contamination in the urban soils of Volos city.

scholarly journals Quantification of Potentially Toxic Elements in Degraded Mining Soils and Medicinal Plants: A Case Study of Indus Kohistan Region Northern Pakistan

2021 ◽  
Author(s):  
Waseem sardar ◽  
Aziz Ur Rahman ◽  
javed nawab ◽  
Sardar Khan ◽  
Abid Ali ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Toxic Elements ◽  
Translocation Factor ◽  
Contamination Factor ◽  
Absorption Spectrometry ◽  
Potentially Toxic Elements ◽  
Pollution Indices ◽  
Mining Wastes ◽  
Mining Soil ◽  
Open Dumping

Abstract In recent years, a series of environmental and ecological problems have occurred due to enhanced anthropogenic disturbances for precious minerals mining. Traditional medicines have become an important pillar in national homeopathic treatment system especially in mountainous environment of developing countries. The current study investigates the level of potentially toxic elements ( PTEs ) contamination in degraded mining soil and medicinal plants along the mafic-ultramafic rocks in the Kohistan region. Soil samples and medicinal plant species were collected from the degraded mining area and were screened for PTEs (Pb, Cr, Ni, Mn, Zn, and Cd) using atomic absorption spectrometry. Various pollution indices were used for PTEs such as contamination factor (CF), pollution load index (PLI) and translocation factor (TF) in degraded mining soil and medicinal plants. The mean concentration of PTEs found in soil were in order of Mn>Ni>Cr >Pb>Zn>Cd, while in medicinal plants were Pb>Cr>Mn>Ni>Zn>Cd. Highest bioaccumulation was observed in Ajuga bracteosa (Cr=349 mg kg –1 ), Phlomis bracteosa (Pb=335 mg kg –1 ), Chenopodium ambrosioides (Mn = 304.3 mg kg –1 ), Isatis costata (Ni=169 mg kg –1 ), Ajuga parviflora (Zn = 38.4 mg kg –1 ) and Salvia moorcoftiana (Cd=11 mg kg –1 ). Furthermore, the concentrations of PTEs were significantly higher ( p <0.001) in degraded mining soil and medicinal plants than the reference site, which may be attributed to the mining and open dumping of mining wastes. The present study revealed that chromite mining and open dumping of mining wastes can cause serious environmental problem in the study area. Furthermore, medicinal plants grown in degraded mining soil may pose risk to the local inhabitants as most of the people consume these plants for various health problems.

scholarly journals Appraisal of Pollution and Source Apportionment of Potentially Toxic Elements in Different Soils Collected around the Industrial Area

2021 ◽  
Author(s):  
Falwinder Verma ◽  
Salwinder Singh Dhaliwal ◽  
Vinod Kumar ◽  
Rakesh Kumar ◽  
Jaswinder Singh ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Agricultural Soils ◽  
Contamination Factor ◽  
Industrial Area ◽  
Potentially Toxic Elements ◽  
Percentage Change ◽  
Soil Types ◽  
Pollution Indices ◽  
Management Approaches ◽  
Different Soils

Abstract It is imperative to understand the pollution of potentially toxic elements (PTEs) in different soils in order to determine the sustainable management approaches for soils. Potentially toxic elements (Fe, Mn, As, Pb, Zn, Ni, Cu, Cn, Co and Cd), and pH and organic carbon were determined in agricultural, non-agricultural and industrial soils of Indian, Punjab. The findings of PTEs indicated that industrial soils recorded highest concentration of PTEs followed by non-agricultural and agricultural soils. The percentage change recorded from agricultural to non-agricultural soils for PTEs were 3.19% for Fe, 25.3% for Mn, 63.8% for Cu, 13.5% for Cn, 49.8% for Pb, 79.6% for Ni, 35.8% for Co and 32% for Cd. From non-agricultural to industrial soils the percentage change observed for PTEs were 89% for Zn, 2.03% for Fe, 21.9% for Mn, 68.2% Cu, 9.2% for Cn, 35.8% for Pb, 18.4% for Co, 30.4% for Cd and 43.4% for As. The results of contamination factor, enrichment factor, geoaccumulation index, pollution and modified pollution indices indicated that Cd and As showed severe contamination in all studied soil types. Ecological risk assessment results revealed that Cd exhibited very risk in different soil types. The outcomes of this study will aid in forming approaches to decline the perils allied with PTEs in soils, and produce guidelines to save the environs from long term accrual of PTEs.

Chromium Concentrations and Regional Distribution of Urban Soils in Suzhou City

2012 ◽  
Vol 253-255 ◽  
pp. 817-820
Author(s):  
Ya Fen Han ◽  
Qi Li
Keyword(s):  
Urban Soils ◽  
Regional Distribution ◽  
Residential Areas ◽  
X Ray ◽  
Average Value ◽  
Accumulation Index ◽  
Suzhou City ◽  
Intensive Investigation ◽  
Fluorescence Spectrometer ◽  
Functional Areas

An intensive investigation of 55 samples which have been collected from different functional areas was conducted to study concentrations and distribution of chromium in urban soils of Suzhou by X-Ray fluorescence spectrometer, and the method of Geoaccumulation index. The results indicate that the chromium content in Suzhou soils is from 45 to 144 mg/kg, with an average value of 73.42 mg/kg; and distribution characterized of different functional areas as follows: Industrial areas > Commercial areas > Areas around station > Residential areas>Urban green space; the accumulation index values is between 0.81 and 1.91, which is non-polluting or moderately polluted.

Potentially Toxic Elements Contamination in Urban Soils

2007 ◽  
Vol 36 (1) ◽  
pp. 70-79 ◽  
Author(s):  
M. Biasioli ◽  
H. Grčman ◽  
T. Kralj ◽  
F. Madrid ◽  
E. Díaz-Barrientos ◽  
...  
Keyword(s):  
Urban Soils ◽  
Toxic Elements ◽  
Potentially Toxic Elements

scholarly journals Heavy Metalspatial Distribution and Pollution Assessment in the Surface Sediments of the North � Western Black Sea Shelf

2020 ◽  
Vol 71 (4) ◽  
pp. 155-170
Author(s):  
Andra Bucse ◽  
Dan Vasiliu ◽  
Sorin Balan ◽  
Oana Cristina Parvulescu ◽  
Tanase Dobre
Keyword(s):  
Black Sea ◽  
Oil And Gas ◽  
Contamination Factor ◽  
Pollution Assessment ◽  
Clay Content ◽  
Sediment Pollution ◽  
Pollution Indices ◽  
Sediment Samples ◽  
The North ◽  
Accumulation Index

22 surface sediment samples were collected in August 2018 from the Romanian inner shelf (Nord-Western Black Sea). Concentrations of some metals (Al, Cr, Cu, Ni, Zn, As, Pb, and Hg), TOC content, and grain size of sediment samples were determined by specific techniques. The order of accumulation of heavy metals was Zn]Cr]Ni]Cu]Pb]As]Hg. Multivariate analysis indicated that As, Ni, Cu, Zn, Pb, and Hg concentrations had similar behavior and they were positively correlated with the clay content, whereas Al and Cr concentrations presented close patterns and they were negatively correlated with the water depth. Sediment pollution assessment indices (enrichment factor, contamination factor, and geo-accumulation index) suggested no/low pollution for most of the metals analyzed, excepting for Pb and Hg (moderate pollution). Values of pollution indices highlighted a higher sediment pollution with Pb and Hg along the Danube�s plume direction, in the oil platform area (eastern edge of the Portita Bay), and partially in the Constanta and Mangalia area, suggesting the influence of port activities, tourism, urban wastewater discharges, oil and gas extraction.

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