scholarly journals Heavy metals in soils and mosses-epiphytes of the Leninsky district of the city Izhevsk

2021 ◽  
Vol 4 (46) ◽  
pp. 2-2
Author(s):  
Alexander Saakian ◽  
◽  

The article presents the results of studies on the assessment of heavy metal pollution of soils and epiphytes in of the city of Izhevsk. Objects of research: soils of near-trunk circles of black poplar (Populus nigra L.) and epiphytic moss of Schreber's pleurotium (Pleurozium schreberi (Willd. Ex Brid.) Mitt.). To assess the pollution, the magnetic susceptibility of soils and mosses was determined, as well as the average total content of heavy metals in the samples under study. The relationship between the content of heavy metals and the magnetic susceptibility of soils and epiphytes has been determined. A correlation was revealed between the total content of Zn, Cr, Fe, V in soils and in mosses, which indicates air pollution of soils. Keywords: MAGNETIC SENSITIVITY, HEAVY METALS, MOSSES-EPIPHYTES, AIR POLLUTION

2013 ◽  
Vol 368-370 ◽  
pp. 380-385
Author(s):  
Cai Qiu Wu ◽  
Xu Yin Yuan ◽  
Tian Yuan Li ◽  
Xue Qiang Zhao ◽  
Qing Ling Liao

Magnetic susceptibility characteristics as well as the relationships between magnetic susceptibility and As, Hg, Cu, Pb, Cd, Cr were investigated in the typical contaminated areas of southern Jiangsu Province.It was found that the correlations between magnetic susceptibility and Cu, Pb were relatively significant, while the correlations between magnetic susceptibility and Cd, As were weak. Heavy metals in soils from industrial wastewater discharge were associated with the magnetic susceptibility, which showed better correlation than other pollution sources.The primary component analysis showed heavy metals in soils from Nanjiao area were mainly the dust from metallic factory , Source of heavy metals in the soils of Ehu area showed the close relationship with the industrial wastewater source in this area.Characteristics of heavy metals in Dingshu area were associated with the source of the mixed wastewater.It is apparent that the different sources will lead to the changes of the correlation between heavy metals and magnetic susceptibility. Generally,the relationship between heavy metal and susceptibility is good in the soils irrigated with industrial wastewater, and metals from the mixed wastewater show a relatively poor correlation with the magnetic susceptibility.


2014 ◽  
Vol 955-959 ◽  
pp. 1107-1111
Author(s):  
Shu Hong Si

This paper is mainly based on a city in surface soil heavy metal pollution on the measured GPS data,Application of the Nemeroww method to study the city all functional areas of the 8 kinds of heavy metals pollution degree.


2020 ◽  
pp. 371-381
Author(s):  
Nawrass Ameen

     Due to rapid urbanization and industrialization that occurred in Al- Muthanna province in southeastern Iraq during the last decade, pollutants such as heavy metals were emitted into the environment and became a serious threat to human health. Environmental pollution could be caused by different types of pollutants, which come from different sources.      This study aims to assess the environmental magnetism efficiency for heavy metal pollution assessment using the magnetic susceptibility technique which became a more rapid and cost-effective compared to conventional methods. Increasing heavy metal contents in soils causes an increase in the magnetic mineral concentration. The study area is located in Al- Muthanna province, southeast of Iraq, and contains three cement plants, an oil refinery, bricks factories, and power plants. Fifty topsoil and subsoil samples (0-50 cm depth) were collected from five sites; Al-Jinoob cement plant (one site), Samawa oil refinery (two sites) and Al- Muthanna cement plant (two sites). In this study, magnetic properties of samples in vertical sections and levels of heavy metal elements; of selected samples from regions with different geological settings were compared. The heavy metals analysis included chromium (Cu), iron (Fe), nickel (Ni), copper (Cu), Arsenic (As) and lead (Pb), which could give indications of heavy metal pollution in soil. The highest magnetic susceptibility value (65.23 x10-8 m3kg-1) was recorded in Al-Muthanna cement plant (TSL-4) and the highest Cu concentration (602.57 ppm) was also recorded in Al-Muthanna cement plant (TSL-5-3). The results of magnetic properties show the dominance of coarse magnetite, which is supposed to have originated from pedogenic particles in natural soils, causing the positive correlation between magnetic susceptibility (χ) and anhysteretic remanent magnetisation (ARM). According to the results of frequency dependent susceptibility ratio (κfd%), the magnetic particles showed an admixture of multi-domain and pseudo-single domain behaviour. Magnetic susceptibility and heavy metal analyses results indicated emissions from nearby industrial plants. X-ray fluorescence (XRF) was carried out for heavy metal analyses which supported our results. Results of this study demonstrate the suitability of applying magnetic techniques for assessing environmental situations.  


2021 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Catur Pujiono ◽  
Akhmad Taufiq Mukti ◽  
Woro Hastuti Satyantini

Euchema cottoni or Kappaphycus alvarezii is one type of seaweeds that is widely cultivated in Indonesia. Water pollution caused by the accumulation of Pb heavy metals will affect the seaweed to grow and develop. This study is aimed to determine the tannin levels in K. alvarezii and the relationship of Pb heavy metal pollution level with tannin levels in K. alvarezii in different waters. This study used an observational experiment, and samples were taken from two different locations with 4 stations in each. From each sample in both locations, K. alvarezii was taken and was then measured for the tannin levels, water quality, and heavy metals (Pb) in water and in K. alvarezii. The results were analyzed at the Laboratory of PT. Sucofindo and the Laboratory of Testing Service Unit, Airlangga University Surabaya. The data were analyzed using a statistical test in the form of a t-test to determine the differences in samples in both waters, and a C-square test was used to determine the relationship between PB and tannin levels in K. alvarezii. The results showed that the level of Pb heavy metal pollution in the two waters did not show a significant difference due to water quality which was quite similar in both locations. Moreover, the tannin content in K. alvarezii in Bluto waters (0.053±0.004%) was higher than that in Talango waters (0.020±0.009%). Meanwhile, a t-test showed a significant difference in seaweed tannins in both waters. The relationship between Pb heavy metal pollution and tannins of seaweed in Bluto and Talango waters was that they did not affect each other, and tannin concentration was more influenced by chemical oxygen demand (COD), salinity of both waters, and the cultivation methods used.


2021 ◽  
Vol 19 (4) ◽  
Author(s):  
Krassimira Ilieva-Makulec ◽  
Paweł Dariusz Plichta ◽  
Maciej Sierakowski

The aim of the study was to assess air pollution with heavy metals in Warsaw, on the basis of the concentrations of selected elements in moss samples. The active biomonitoring method (moss-bag technique) was applied using two moss species Pleurozium schreberi and Sphagnum palustre. Moss samples were collected in the Kampinos National Park, and the prepared moss bags were distributed and exposed on seven sites in Warsaw. The analysis of metals accumulated in mosses was performed twice in 2020, after two (August-September) and four months (August-November) of exposure. The concentrations of seven heavy metals (Cr, Cu, Pb, Ni, Fe, Cd and Zn) in the mosses were determined, using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP OES). Our results showed a clear dependence of heavy metal accumulation in the mosses on the location of the exposition site and the exposure period. Both species of mosses were found to accumulate the most metals in the vicinity of pollutant emitters, such as the ArcelorMittal Warsaw smelter, exit roads or roads in the city with heavy traffic, petrol stations, or construction works. After 4 months of exposure, in both moss species, the highest increases in the concentrations were found for four elements: Cr, Pb, Ni and Cd.  Higher concentrations of some heavy metals in the mosses in 2020, as compared to previous studies, indicate a negative influence of progressing urbanisation on air pollution in Warsaw.


2018 ◽  
Vol 13 (3) ◽  
pp. 299-306 ◽  
Author(s):  
GOPAL KRISHAN ◽  
S.K. CHANDNIHA ◽  
A.K. LOHANI ◽  
BRIJESH KUMAR YADAV ◽  
NARESH KUMAR ARORA ◽  
...  

Assessment of heavy metals in soils is important in context of human health as these may either pollute the agricultural crops or may move deeper into the groundwater. There has been no such work been carried out in the soils of Mewat district. In the present study, to investigate the soil heavy metal pollution characteristics 15 samples and 3 typical soil profiles were collected from 2 blocks of Mewat district, Haryana and were analyzed for contents of Arsenic (As), copper(Cu), cadmium (Cd), zinc(Zn), iron (Fe), manganese (Mn) and nickel(Ni). Concentrations of As, Cd and Ni in soils are less than their toxicity levels while concentrations of Fe, Mn, Zn and Cu are found exceeding the toxicity levels. Based on the results, soil in the study area are polluted by heavy metals viz. Fe, Mn, Zn and Cu. According to principal component analysis, distinct groups of heavy metals were discriminated between natural or anthropogenic sources.


1977 ◽  
Vol 4 (3) ◽  
pp. 213-216 ◽  
Author(s):  
David A. Brown ◽  
Carole A. Bawden ◽  
Kenneth W. Chatel ◽  
Timothy R. Parsons

Marine and terrestial animals have been shown to be particularly abundant in a wildlife community associated with a marine sewer outfall from the City of Vancouver. These same animals are contaminated with high levels of heavy-metals but are apparently protected from their poisonous effects by the production of a protein known as metallothionein. The amount of metallothionein and heavy-metal loading appears to depend primarily on the degree of pollution and secondly on the species of animal and its position in the food-web.


2011 ◽  
Vol 343-344 ◽  
pp. 707-711
Author(s):  
Guo Yi Yang ◽  
Ting Wang

The rapid population growth in Taiyuan, the ever-increasing industrial production and the never-ending expansion of the city have led to the serious heavy metal pollution of the soil, the deterioration of the soil fertility, the decrease of the grain output and the decline of grain quality and thus severely influencing the environmental quality and obstructing the sustainable economic development. The paper measures the content of such heavy metals as Pb、Cd、and Cr by Tessier's sequential extraction procedure in different depths of Taiyuan suburban soil, then determines the existing forms of these metals in the soil, discusses the factors influencing the forms of the heavy metals and their migration and transformation, probes into the ecological influence of the heavy metal pollution of soil, and finally the writer puts forward some measures to prevent from such pollution.


2020 ◽  
Author(s):  
Mei Li

<p>Correlations between magnetic enhancement and heavy metal pollution in the urban soils of an industrial area in Shanghai</p><p> </p><p>Mei Li, Zi-Chen He, Xue-Feng Hu</p><p>School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China</p><p> </p><p>Fifty-three topsoil samples (0-5 cm) on the sides of highways surrounding the Bao Steel Company were collected in Baoshan District of Shanghai, Southeast China. Physical-chemical properties and magnetic susceptibility of the topsoils were analyzed. Close to the Yangtze River Estuary, the soils in the study area in the northern part of Baoshan District, Shanghai, were mostly derived from tidal sediments of the estuary. The topsoils were thus alkaline, with pH in a range of 8.0-8.6. The content of organic matter in the topsoils was in a range of 8.0-78.6 mg g<sup>-1</sup>. The content of Fe in the topsoils varied greatly, possibly influenced by the industrial emissions from local metal smelters and power plants. The content of total Fe (Fe<sub>t</sub>) in the topsoils was in a range of 21.0-68.6 mg g<sup>-1</sup>, with an average of 33.7 mg g<sup>-1</sup>; free Fe (Fe<sub>d</sub>), 8.5-25.2 mg g<sup>-1</sup>, with an average of 13.8 mg g<sup>-1</sup>; amorphous Fe (Fe<sub>o</sub>), 2.2-40.4 mg g<sup>-1</sup>, with an average of 13.1 mg g<sup>-1</sup>. Correspondingly, the magnetic signals of the topsoils were significantly enhanced and varied greatly from site to site. Magnetic susceptibility of the topsoils was in a range of 35.3-1722.7×10<sup>-8</sup> m<sup>3</sup> kg<sup>-1</sup>, with an average of 408.5×10<sup>-8</sup> m<sup>3</sup> kg<sup>-1</sup>. The topsoil with the maximum magnetic susceptibility, 1722.7×10<sup>-8</sup> m<sup>3</sup> kg<sup>-1</sup>, was coarse in grain size and located beside some machinery, cement and material factories. Magnetic susceptibility of the topsoils was significantly correlated with Fe<sub>t</sub>, Fe<sub>d</sub> and Fe<sub>o</sub> (r=0.712, 0.777, 0.961, n=53; p<0.01). The contents of toxic heavy metals, Zn, Pb, Cr, Co, Mn and Ni, in the topsoils were also analyzed. It was found that heavy metals were highly accumulated in the topsoils. The contents of Mn, Cr and Ni in the topsoils were more than 2 times the background values in the soils of Shanghai, and Pb and Zn were more than 4 times the background values. Moreover, magnetic susceptibility of the topsoils was positively significantly correlated with the content of Zn, Mn and Ni (r=0.884, 0.819, 0.564, p<0.01; n=53). This suggests that magnetic susceptibility of the topsoils can be used to indicate the degree of heavy metal pollution to some extent. There are many iron smelting factories and coal-fired power plants in the study area, which emitted a high amount of Fe-containing magnetic particles. The small particles had a large surface area and often adsorbed toxic heavy metals. When the particles were settled down on the ground, both magnetic signals and heavy metal contents of the topsoils were enhanced simultaneously. Therefore, the magnetic techniques are a promising means to study and evaluate the pollution of urban soils.</p>


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