Health assessment of medicinal herbs, celery and parsley related to cadmium soil pollution-potentially toxic elements (PTEs) accumulation, tolerance capacity and antioxidative response

2021 ◽  
Author(s):  
Danijela Arsenov ◽  
Milan Župunski ◽  
Slobodanka Pajević ◽  
Milan Borišev ◽  
Nataša Nikolić ◽  
...  
Keyword(s):  
Soil Pollution ◽  
Toxic Elements ◽  
Health Assessment ◽  
Potentially Toxic Elements ◽  
Medicinal Herbs ◽  
Antioxidative Response

Pollution of Moscow soils with potentially toxic elements: analysis of long-term monitoring data

2020 ◽  
Author(s):  
Natalia Kosheleva ◽  
Angela Tsykhman
Keyword(s):  
Soil Pollution ◽  
Large Scale ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Monitoring Data ◽  
Scale Transformation ◽  
Industrial Enterprises ◽  
South Eastern ◽  
The City

<p>In megacities, the environment experiences a high anthropogenic press caused by emissions from vehicles and industrial enterprises. Soils are an important component of urban landscapes: they not only accumulate pollutants, but also can be a source of secondary pollution of atmosphere and groundwater. The aim of this work is to analyze the long-term dynamics of soil contamination with potentially toxic elements (PTEs) in Moscow, as Moscow is one of the most polluted cities of Russia.</p><p>The basis for assessing the pollution of soils with As, Cd, Pb, Zn, Hg, Cu, Ni, Mn was the annual monitoring data for 2007-2016, which is obtained by the «Mosecomonitoring» institution and include more than 2000 points of observation. The accumulation of PTEs was characterized by a technogenic concentration factor Kc=Curb/Cb relative to the background Cb, which differed by three physiographic provinces. The total geochemical load on soils was estimated as Zc=∑Kc–(n–1), where n is the number of elements with Kc>1.</p><p>An analysis of the changes in the pollutant content in the soils of Moscow over the decade showed a twofold increase in the accumulation of Cu, Cd, As in the Central District and Cd in the Western and Northwest ones, as well as As in the northeastern part of the city by 1.4–2.3 times. In all districts, a tendency toward a decrease in pollution with Zn, Pb, and Hg was revealed. Compared with 2007, in 2016, the average content of all PTEs in the soils of the city decreased or remained unchanged, except for As.</p><p>The spatial distribution of PTEs in Moscow soils is controlled by the intensity and geochemical specialization of pollution sources, and varies due to soil properties. Central, Eastern, South-Eastern Districts are leading in terms of Cu and Pb pollution. Central and South-Eastern Districts are distinguished by Hg pollution. Central, North-Eastern, South-Eastern, and Southern Districts are most polluted with Zn and Cd. Soils in the southern part of Moscow are most enriched in Ni. High concentrations of As are characterized by soils of light grain-size composition with a high content of organic matter.</p><p>The highest values of the total soil pollution index Zc are characteristic for the Central and South-Eastern Districts, the lowest ones – for the Western and North-Western Districts. Analysis of Zc maps for 2007-2016 showed a decrease in soil pollution. In 2007, uncontaminated soils occupied 35.3% of the city’s area; slightly medium, and heavily polluted – 33%, 22.8% and 9.4% respectively. In 2016, this sequence was as follows: 65%, 22.7%, 11%, and 1.3%. This trend is associated with a decrease in industrial production in Moscow, the removal of harmful industries outside the city and the renovation of enterprises remaining in the capital, as well as with a reduction in emissions from vehicles. Changes in the location of man-made geochemical anomalies in soils reflect leveling in the pollution from vehicles due to the construction of new housing and the large-scale transformation of Moscow regions with a decrease in traffic in the center (Bityukova, Mozgunov, 2019).</p>

scholarly journals The Morphological and Functional Organization of Cattails Typha laxmannii Lepech. and Typha australis Schum. and Thonn. under Soil Pollution by Potentially Toxic Elements

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 227
Author(s):  
Tatiana Minkina ◽  
Grigoriy Fedorenko ◽  
Dina Nevidomskaya ◽  
Elizaveta Konstantinova ◽  
Tatiana Pol’shina ◽  
...  
Keyword(s):  
Soil Pollution ◽  
Toxic Elements ◽  
Functional Organization ◽  
Potentially Toxic Elements ◽  
Ultrastructural Changes ◽  
Electron Microscopic ◽  
Typha Australis ◽  
Microscopic Studies ◽  
High Concentrations ◽  
High Level

The aim of this study is to investigate the adaptation of two species of cattail Typha australis Schum. and Thonn. and Typha laxmannii Lepech. based on analysis of the morphological and anatomical features of their vegetative and generative organs to soil pollution with potentially toxic elements (PTE) in the riparian zones of the sea edge of the Don River delta (Southern Russia). Both species of the cattail are able to accumulate high concentrations of Ni, Zn, Cd, Pb and can be used for phytoremediation of polluted territories. The pattern of PTE accumulation in hydrophytes has changed on polluted soils of coastal areas from roots/rhizomes > inflorescences > stems to roots/rhizomes > stems ≥ inflorescences. The comparative morphological and anatomical analysis showed a statistically significant effect of the environmental stress factor by the type of proliferation in T. australis, and species T. laxmannii was visually in a depressed, deformed state with mass manifestations of hypogenesis. These deformations should be considered, on one hand, as adaptive, but on the other, as pathological changes in the structure of the spikes of the cattails. Light-optical and electron microscopic studies have shown that the degree and nature of ultrastructural changes in cattails at the same level of soil pollution are different and most expressed in the assimilation tissue of leaves. However, these changes were destructive for T. australis, but for T. laxmannii, these indicated a high level of adaptation to the prolonged technogenic impact of PTE.

scholarly journals Current Status and Temporal Trend of Potentially Toxic Elements Pollution in Agricultural Soil in the Yangtze River Delta Region: A Meta-Analysis

2021 ◽  
Vol 18 (3) ◽  
pp. 1033
Author(s):  
Shufeng She ◽  
Bifeng Hu ◽  
Xianglin Zhang ◽  
Shuai Shao ◽  
Yefeng Jiang ◽  
...  
Keyword(s):  
Yangtze River ◽  
Agricultural Soil ◽  
Toxic Elements ◽  
Temporal Trend ◽  
Meta Analysis ◽  
Yangtze River Delta ◽  
Potentially Toxic Elements ◽  
River Delta ◽  
The Yangtze River ◽  
The Yangtze River Delta

Potentially toxic elements (PTEs) pollution in the agricultural soil of China, especially in developed regions such as the Yangtze River Delta (YRD) in eastern China, has received increasing attention. However, there are few studies on the long-term assessment of soil pollution by PTEs over large regions. Therefore, in this study, a meta-analysis was conducted to evaluate the current state and temporal trend of PTEs pollution in the agricultural land of the Yangtze River Delta. Based on a review of 118 studies published between 1993 and 2020, the average concentrations of Cd, Hg, As, Pb, Cr, Cu, Zn, and Ni were found to be 0.25 mg kg−1, 0.14 mg kg−1, 8.14 mg kg−1, 32.32 mg kg−1, 68.84 mg kg−1, 32.58 mg kg−1, 92.35 mg kg−1, and 29.30 mg kg−1, respectively. Among these elements, only Cd and Hg showed significant accumulation compared with their background values. The eastern Yangtze River Delta showed a relatively high ecological risk due to intensive industrial activities. The contents of Cd, Pb, and Zn in soil showed an increasing trend from 1993 to 2000 and then showed a decreasing trend. The results obtained from this study will provide guidance for the prevention and control of soil pollution in the Yangtze River Delta.

scholarly journals Dietary exposure to potentially toxic elements through sushi consumption in Catalonia, Spain

2021 ◽  
pp. 112285
Author(s):  
Neus González ◽  
Eudald Correig ◽  
Isa Marmelo ◽  
António Marques ◽  
Rasmus la Cour ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Dietary Exposure ◽  
Potentially Toxic Elements

Purified montmorillonite as a nano-adsorbent of potentially toxic elements from environment: an overview

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Zahra Biglari Quchan Atigh ◽  
Pourya Sardari ◽  
Ebrahim Moghiseh ◽  
Behnam Asgari Lajayer ◽  
Andrew S. Hursthouse
Keyword(s):  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Nano Adsorbent

scholarly journals Human Health Risk Assessment for Exposure to Potentially Toxic Elements in Polluted Rivers in the Ecuadorian Amazon

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 613
Author(s):  
Samantha Jiménez-Oyola ◽  
Kenny Escobar Segovia ◽  
María-Jesús García-Martínez ◽  
Marcelo Ortega ◽  
David Bolonio ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Cancer Risk ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Toxic Elements ◽  
Human Health Risk ◽  
Potentially Toxic Elements ◽  
Ecuadorian Amazon ◽  
Polluted Rivers

Anthropogenic activities performed in the Ecuadorian Amazon have released potentially toxic elements (PTEs) into the rivers, causing severe environmental pollution and increasing the risk of exposure to the residents of the surrounding areas. This study aims to carry out a human health risk assessment using deterministic and probabilistic methods to estimate the hazard index (HI) and total cancer risk (TCR) related to multi-pathway human exposure to PTEs in polluted rivers. Concentrations of Al, Cd, Cr, Cu, Hg, Ni, Pb, and Zn in surface water and sediment samples from rivers on the Ecuadorian Amazon were considered to assess the potential adverse human health effects. As a result, deterministic and probabilistic estimations of cancer and non-cancer risk through exposure to surface waters and sediments were above the safety limit. A sensitivity analysis identified the concentration of PTEs and the exposure duration (ED) as the two most important variables for probabilistic health risk assessment. The highest risk for receptors was related to exposure to polluted sediments through incidental ingestion and dermal contact routes. According to the deterministic estimation, the human health risk through ingestion of water was above the threshold in specific locations. This study reveals the potential health risk to which the population is exposed. This information can be used as a baseline to develop public strategies to reduce anthropogenic pollution and exposure to PTEs in Ecuadorian Amazon rivers.

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