Macrophyte cycling of zinc, copper, lead and cadmium in the littoral zone of a polluted and a non-polluted lake. I. Availability, uptake and translocation of heavy metals in Phragmites australis (Cav.) Trin.

1981 ◽  
Vol 11 ◽  
pp. 197-210 ◽  
Author(s):  
Hans-Henrik Schierup ◽  
Vagn Juhl Larsen
Keyword(s):  
Heavy Metals ◽  
Phragmites Australis ◽  
Littoral Zone ◽  
Lead And Cadmium ◽  
Polluted Lake ◽  
Copper Lead

scholarly journals Absorption Capacity of Copper and Lead in the Case of Phragmites Australis Plant Species

2019 ◽  
Vol 70 (11) ◽  
pp. 4035-4039
Keyword(s):  
Heavy Metals ◽  
Plant Species ◽  
Phragmites Australis ◽  
Dry Matter ◽  
Absorption Capacity ◽  
Hydrographic Basin ◽  
Lead Absorption ◽  
Plant Samples ◽  
Copper Lead ◽  
High Absorption

The main objective of the current research is to determine the absorption capacity of heavy metals (copper and lead) in the case of Phragmites Australis plant species (root, stalk, leaf, flower). The plant samples was taken from the Moldova and Siret Rivers, belonging to the Siret hydrographic basin, respectively upstream of Roman city, Romania-Siret River, downstream Roman city -Moldova River, downstream confluence Moldova/Siret- Siret River and Dragesti-Siret River. A high absorption capacity of copper was recorded, in the case of Phragmites Australis plant species (especially in the root of the plant for all point analysed). A very higher absorption capacity of lead was recorded, in the flower, in the case of Phragmites Australis plant species (1.45÷39.56 mg/kg dry matter) for all point analysed. Keywords: copper, lead, absorption capacity, Phragmites Australis

scholarly journals ANALYSIS OF THE EFFICIENCY OF USING THE CULINARY PROCESSING OF MUSHROOMS IN ORDER TO REDUCE THE CONCENTRATION OF HEAVY METALS IN THEM

2020 ◽  
pp. 209-222
Author(s):  
Oksana Vradiy
Keyword(s):  
Heavy Metals ◽  
Tap Water ◽  
Absorption Spectrometry ◽  
Forest Steppe ◽  
Distilled Water ◽  
Lead And Cadmium ◽  
Different Types ◽  
The Village ◽  
The Town ◽  
Copper Lead

The samples of mushrooms were collected in the forestry of the village Tyvriv and the town of Kalynivka, Vinnytsia and Kalynivka districts, in the conditions of Right-Bank Forest-Steppe of Ukraine. The studies of heavy metals concentration were performed in the scientific agrochemical laboratory of the Department of Ecology and Environmental Protection, the Faculty of Agronomy and Forestry at Vinnytsia National Agrarian University. The concentrations of Cu, Zn, Pb and Cd of the studied mushrooms were determined by the method of atomic absorption spectrometry after the dry mineralization. The research of the effect of culinary processing on the concentration of heavy metals in mushrooms were conducted according to the following scheme: 1. The control: mushrooms, cleaned and washed with tap water; 2. Option 1: mushrooms soaked in tap water for 3 hours and boiled in it; 3. Option 2: mushrooms soaked in the water without mineral residue for 3 hours and boiled in it; 4. Option 3: mushrooms soaked in distilled water for 3 hours and boiled in it. Summarizing the obtained results, it should be noted that the most effective way to reduce the concentration of lead and cadmium in mushrooms was the option of soaking and boiling mushrooms in the water without mineral residue. The most effective way to reduce the concentration of zinc and copper was Option 3, where distilled water was used. The influence of soaking and boiling mushrooms in different types of water is investigated. When soaking and boiling mushrooms in tap water for 3 hours, the concentration of zinc in them was found to decrease from 1.01 to 1.04 times, the concentration of copper – from 1.0 to 1.2 times, the concentration of lead – from 1.09 to 1.16 times and the concentration of cadmium – from 1.08 to 1.2 times. When soaking and boiling mushrooms in the water without mineral residue, the concentration of zinc decreased from 1.01 to 1.04 times, the concentration of copper – from 1.16 to 1.25 times, the concentration of lead – from 1.8 to 2.0 times and the concentration of cadmium – from 1.75 to 2.0 times. When soaking mushrooms and boiling them in distilled water, the concentration of zinc decreased from 1.13 to 1.18 times, the concentration of copper – from 1.2 to 1.29 times, the concentration of lead – from 1.22 to 1.28 times and the concentration of cadmium – from 1.08 to 1.2 times. Key words: mushrooms, concentration, zinc, copper, lead, cadmium, distilled water, water without mineral residue, tap water, boiling of mushrooms.

CONTENTS OF HEAVY METALS IN THE PLANTS OF PETROPAVLOVSK-KAMCHATSKY (KAMCHATKA TERRITORY) IN 2017–2018

2020 ◽  
pp. 48-64
Author(s):  
V.G. Avdoshchenko ◽  
◽  
A.V. Klimova ◽  
Keyword(s):  
Heavy Metals ◽  
Metal Pollution ◽  
Copper Content ◽  
Cadmium Content ◽  
Summer Period ◽  
Lead And Cadmium ◽  
Plant Samples ◽  
Tree Layer ◽  
Alnus Hirsuta ◽  
Copper Lead

Results of determining the content of zinc, copper, lead and cadmium in the leaves of Alnus hirsuta, Artemi-sia vulgaris kamtschatica, Betula ermanii, Rosa amblyotis, Salix udensis collected from the territories of Petropavlovsk-Kamchatsky in 2017–2018 summer period are discussed. In the summer of 2017, the copper content in the plants from studied areas varied in the range from 5.5 to 22.5 mg/kg, in 2018 – from 7.7 to 36.6 mg/kg. Its highest content in 2017 and 2018 was found in A. vulgaris, and the lowest in R. amblyotis. In 2017, the concentration of zinc varied from 12.9 to 281 mg/kg, in 2018 – from 20.8 to 246 mg/kg, the high-est concentration in 2017 and 2018 is typical for S. udensis, the lowest for R. amblyotis. In 2017, the range of lead content in plant samples was from 0.3 to 3.0 mg/kg, in 2018 – from 1.2 to 3.8 mg/kg. In the summer of 2017, the cadmium content in studied plant samples varied in the range from 0.2 to 2.7 mg/kg, in 2018 – from 0.1 to 3.6 mg/kg. The lowest concentration of cadmium was found in 2017 in R. amblyotis, in 2018 – B. ermanii, the highest in the leaves of S. udensis in 2017 and 2018. Our results allowed identifying species – indicators of metal pollution for the territories of Petropavlovsk-Kamchatsky: A. vulgaris kamtschatica from the representatives of the herbaceous-shrub layer and S. udensis from the tree layer.

scholarly journals SANITARY AND PROTECTIVE LARIX SUKACZEWII DYL. STAND IN THE POLLUTION CONDITIONS OF THE STERLITAMAK INDUSTRIAL CENTER: STATUS AND PECULIARITIES OF ACCUMULATION OF HEAVY METAL

2018 ◽  
Vol 97 (9) ◽  
pp. 819-824 ◽  
Author(s):  
Rafak Kh. Giniyatullin ◽  
A. A. Kulagin ◽  
G. A. Zaitsev ◽  
Z. B. Baktybaeva
Keyword(s):  
Heavy Metals ◽  
Soil Cover ◽  
Tree Crown ◽  
Control Zone ◽  
Soil Layers ◽  
Lead And Cadmium ◽  
Vital State ◽  
Industrial Center ◽  
Copper Lead ◽  
Absorbing Roots

Introduction. Materials on the distribution of heavy metals in the organs of Larix sukaczewii Dyl are presented in the conditions of the pollution of the industrial center of Sterlitamak. Material and methods. Using the atomic absorption method, the content of copper, lead, and cadmium in the soil cover, needles, branches, and roots was determined in healthy and weakened larch trees. Results. Under conditions of the industrial pollution, the relative life condition of larch stands is estimated as «weakened» (LN = 74.25%), in the control zone as «healthy» (LN = 84.75%). Weakened trees with increasing metal concentrations in soils and roots show an increase in the concentration of metals in the aerial organs, and in healthy trees, it is more deposited in the roots. Discussion. The high content of heavy metals in the soil leads to a redistribution of the root-saturation of the soil with absorbing roots, which is manifested in a decrease in the biomass of the roots in the upper, most contaminated soil layers, and also negatively affects the vital state of the trees by decreasing the density of the tree crown and increasing the share of dead and dying branches on the trunks. Conclusion. Under conditions of contamination, larch is able to actively absorb and deposit a significant amount of Cu, Cd, and Pb, thereby limiting their distribution in the environment.

Heavy metal pollution status in the sediment layer in World Heritage Site: Indian Sundarbans estuarine region

2018 ◽  
Vol 56 (4) ◽  
pp. 474
Author(s):  
Shankhadeep Chakraborty ◽  
Abhijit Mitra
Keyword(s):  
Heavy Metals ◽  
Geoaccumulation Index ◽  
World Heritage ◽  
World Heritage Site ◽  
Sediment Layer ◽  
Indian Sundarbans ◽  
Lead And Cadmium ◽  
Heritage Site ◽  
Estuarine Region ◽  
Copper Lead

Heavy metals have a great ecological significance due to their toxicity and accumulative behavior. The geoaccumulation index (Igeo) in 12 stations in the UNESCO declared World Heritage Site- Indian Sundarbans estuarine region (i.e Kakdwip, Harinbari, Chemaguri, Sagar South, Lothian island, Jambu island, Frasergunge, Gosaba, Chotomollakhali, Bali island, Sajnekhali and Bagmara) were calculated for the year 2016. The sediment pollution was investigated by following the concentration of 3 heavy metals namely copper, lead and cadmium. Atomic Absorption Spectrophotometer (AAS) was used for analysis. According to the geoaccumulation index (Igeo) the results of all the 10 stations were analyzed and discussed in details.

scholarly journals Effect of forest fire on changes in the content of total and available forms of selected heavy metals and catalase activity in soil

2017 ◽  
Vol 68 (3) ◽  
pp. 140-148 ◽  
Author(s):  
Agata Bartkowiak ◽  
Joanna Lemanowicz
Keyword(s):  
Heavy Metals ◽  
Forest Fire ◽  
Soil Parameters ◽  
Time Index ◽  
Lead And Cadmium ◽  
Negative Effect ◽  
Pca Method ◽  
Ward Clustering ◽  
Lead Nickel ◽  
Copper Lead

Abstract The aim of the paper was to assess the effect of forest fire on the content of total and available forms of zinc, copper, lead, nickel and cadmium, as well as the activity of catalase in soil. The study was performed directly (2012) and a year after the fire (2013). The fire had a significant effect on the content of those heavy metals in surface horizons, however, it did not result in their rapid growth. The concentrations of total forms of metals did not exceed the norms provided for in Regulation of the Polish Minister of the Environment. The soil samples analysed can be considered unpolluted with those metals. The availability coefficients calculated showed an unfavourable higher availability of lead and cadmium over zinc and copper. The statistical analysis showed a significant effect of fire on the activity of catalase. Resistance of soil (RS) for catalase demonstrated lower values in the year 2012 as compared with 2013 (except for B soil). The calculated values of time index (TI) pointed to the activation of the enzyme a year after the fire. The Ward clustering method facilitated determining similarities between the sites in two research years (2012 and 2013) with the selected soil parameters. With the PCA method a negative effect of fire was identified.

scholarly journals Environmental Impact Assessment of Discharged Heavy Metals in Textile Production

2021 ◽  
Vol 29 (1(145)) ◽  
pp. 66-69
Author(s):  
Xiang Ji ◽  
Weiran Qian ◽  
Xiaoxiao Qiu ◽  
Yiduo Yang ◽  
Pinghua Xu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Beings ◽  
Textile Production ◽  
Environmental Loads ◽  
Important Method ◽  
Lead And Cadmium ◽  
Chemical Pollutants ◽  
Lake Poyang ◽  
The Mean ◽  
Copper Lead

Heavy metals discharged from textile production have serious impacts on human beings and the environment. Chemical footprint (ChF) methodology is an important method in quantifying the environmental loads of discharged chemical pollutants. With the help of ChF methodology, this study used the mean impact method to assess the environmental loads of heavy metals discharged from a textile enterprise. The results showed that the ChFs of discharged heavy metals calculated based on the aquatic environment of Lake Tai and Lake Poyang were 1.43E+8L and 4.64E+8L respectively. Zinc was the largest contributor, followed by copper, lead and cadmium for the two lakes.

Polymorphism of p-450 cytochrome detoxication genes in adolescents depending on the degree of contamination of the organism by heavy metals

2020 ◽  
Vol 99 (5) ◽  
pp. 478-482
Author(s):  
N. P. Setko ◽  
A. G. Setko ◽  
Ekaterina V. Bulycheva ◽  
A. V. Tyurin ◽  
E. Yu. Kalinina
Keyword(s):  
Heavy Metals ◽  
Environmental Factors ◽  
Heavy Metal Contamination ◽  
Atomic Absorption Spectrophotometry ◽  
The Body ◽  
Lead And Cadmium ◽  
Cyp2b6 Gene ◽  
Cytochrome P 450 ◽  
Gene Cyp1a1 ◽  
Group 1

Introduction. Changes in the body of children and adolescents aimed at adapting to environmental factors are determined by genetic polymorphism in xenobiotic biotransformation genes, determining the degree of susceptibility of the child’s body to pollutants, which is the basis of modern personalized preventive medicine when managing risks to the health of the child population under the influence of environmental factors. Material and methods. Trace elements, including heavy metals, lead and cadmium, were determined in the hair of 256 practically healthy teenagers by atomic absorption spectrophotometry. Depending on the level of content of the latter, two groups of adolescents were formed to determine six genes of the cytochrome P-450 family. Group 1 consisted of adolescents whose cadmium lead content exceeded the average Russian indices. The second group included adolescents whose heavy metals were above the level of average Russian standards. Results. Studies have shown that in adolescents of the 1st group, compared with the data of adolescents of the 2nd group, an increase in the number of carriers of two mutant alleles at the locus rs 1048943 (gene CYP1A1) is 3.08 times, rs 464621 (gene CYP1A1) is 1. 8 times; locus rs 2069522 (CYP1A2 gene) 3.63 times; locus rs 1799853 (CYP2C9 * 2 gene) 4.5 times; locus rs 1057910 (gene CYP2C9 * 3) 3.8 times and locus rs 2279343 (gene CYP2B6) 4.25 times. Moreover, carriers of two normal alleles in adolescents of the first group at the locus rs 1048943 (gene CYP1A1) were 5.14 times; locus rs 2279343 (CYP2B6 gene) was 6.5 fold less than among adolescents of the 2nd group; and at the locus rs 464621 (gene CYP1A1), rs 2069522 (gene CYP1A2), rs 1799853 (gene CYP2C9 * 2), rs 1057910 (gene CYP2C9 * 3) there were no carriers of normal homozygotes. Conclusion. Group 1 adolescents with heavy metal contamination of the body are carriers significantly in a greater number of pathological mutations in the genes of the cytochrome P-450 detoxification system in comparison with data from group 2 adolescents.

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