Mineral element and heavy metal (cadmium, lead and arsenic) levels of bee pollen in Turkey

The article focuses on the study of change of containing heavy metals (zinc, copper, iron, cadmium, lead, arsenic) in the abiotic and biotic components of the Serepok river (Vietman) influenced by wastewater discharge from industrial areas. Heavy metal content was determined in the river water and bottom sediments in the four zones: above and within the boundaries of industrial regions Xoa Phu and Tam Thang and in two water reservoirs situated below the boundaries of those industrial areas. Tilapia Galilean ( Sarotherodon galilaeus ), Hemibagrus ( Hemibagrus ), and sazan ( Cyprinus carpio ) caught in these areas were the hydrobionts under study in which liver, gills, skeleton and muscles accumulation of heavy metals was detected. In the organs of fish caught in the river within industrial region, heavy metals concentration was 3-7 times higher. The greatest concentration of heavy metals was found in the liver and gills of fish caught in the boundaries of industrial regions, the least concentration was in the muscles. In most cases, significant correlation between heavy metal concentration in organs of fishes and in river water, bottom sediments has been revealed.

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Cadmium, lead and zinc in growing rats fed corn leaf tissue grown on soil amended with sewage sludge or heavy metal salts.

Environmental Health Perspectives ◽

10.1289/ehp.8142197 ◽

1981 ◽

Vol 42 ◽

pp. 197-202 ◽

Cited By ~ 8

Author(s):

J Miller ◽

F C Boswell

Keyword(s):

Heavy Metal ◽

Sewage Sludge ◽

Leaf Tissue ◽

Metal Salts ◽

Growing Rats ◽

Lead And Zinc ◽

Heavy Metal Salts ◽

Cadmium Lead

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Change of the cadmium, lead and uranium content in the soil pore water depending on the temperature in conditions of low soil moisture

Proceedings of the National Academy of Sciences of Belarus Chemical Series ◽

10.29235/1561-8331-2019-55-2-212-222 ◽

2019 ◽

Vol 55 (2) ◽

pp. 212-222

Author(s):

G. A. Sokolik ◽

S. V. Ovsiannikova ◽

M. V. Papenia

Keyword(s):

Heavy Metal ◽

Moisture Content ◽

Pore Water ◽

Chemical Nature ◽

Pore Solution ◽

Uranium Content ◽

Iron Hydroxides ◽

Water Capacity ◽

Cadmium Lead ◽

Definite Temperature

Effect of the soil temperature on concentration and total reserve of cadmium, lead and uranium in the interstitial (pore) water of (0–20)-cm samples of sod-podzolic soil with moisture content of 60 % of the water capacity (WC) after their keeping at the definite temperature (in the range of 14–40 °С) was established. It was found that character and extent to which temperature effects on concentration and total reserve of every heavy metal (Cd, Pb, U) in the soil pore solution depended on the chemical nature of heavy metal and peculiarities of soil. In the temperature range of 14–40 °С and moisture content in the soil samples 60 % of the WC, portions of the cadmium, lead and uranium in the soil pore solution decreased in the following way: aCd (0.2–0.4 %) > aPb (0.06–0.07 %) > aU (0.03–0.04 %). The concentrations and total reserves of cadmium, lead and uranium in the soil pore solution increased with lowering the temperature and it was especially true in regard to cadmium. The 5 °С temperature decrease in the range of 14–40 °С caused the content of cadmium in the soil pore solution to increase an average of 25 %, lead – 5.2 and U – 4.6 %. The iron content in the soil solution also increased with decreasing temperature, which indicated a decrease in the sorption capacity of iron hydroxides present in the soil, which probably played a prominent role in fixing cadmium, lead and uranium in the soil studied.

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Catalase Activity in Brown Mussels (Perna perna) under Acute Cadmium, Lead, and Copper Exposure and Depuration Tests

Journal of Marine Biology ◽

10.1155/2014/830657 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 9

Author(s):

Kamel Boudjema ◽

Sidali Kourdali ◽

Nabila Bounakous ◽

Abdellah Meknachi ◽

Abdelmalek Badis

Keyword(s):

Heavy Metal ◽

Catalase Activity ◽

Rank Correlation ◽

General Tendency ◽

Copper Exposure ◽

Perna Perna ◽

Spearman Rank Correlation ◽

Spearman Rank ◽

Cadmium Lead ◽

Spearman Rank Correlation Coefficient

Brown mussels (Perna perna) were exposed to cadmium (Cd), lead (Pb), and copper (Cu) concentrations under acute exposure and exposure-depuration tests for the estimation of biochemical biomarker catalase (CAT). The acute tests showed accumulated Cd, Pb, and Cu inPerna pernacorrelated linearly with the exposure concentrations (R2=0.794,R2=0.891, andR2=0.985for Cd, Pb, and Cu, resp.). The results of CAT increased significantly in tissues of treatment mussels after 72 h exposure when compared to control. The values of total protein were disturbed in exposed groups when compared with control. These results suggest that metabolites and catalase activity were affected by heavy metal exposures. Analysis using the Spearman rank correlation coefficient showed that the CAT activity appeared to have a significant positive correlativity (Rs=0.921,Rs=0.949, andRs=0.949for Cd, Pb, and Cu, resp.) with the accumulated Cd, Pb, and Cu concentrations, respectively. The result of exposure-depuration tests showed that there is a general tendency for CAT to decrease in depuration phase, suggesting that the induction of catalase is metal and/or mixture of metals dependent.

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A Comparative Study of Heavy Metal Accumulation in Tissues of the Crested Tern, Sterna bergii, Breeding Near Industrialized and Non-Industrialized Areas

Wildlife Research ◽

10.1071/wr9810665 ◽

1981 ◽

Vol 8 (3) ◽

pp. 665 ◽

Cited By ~ 26

Author(s):

DM Howarth ◽

AJ Hulbert ◽

D Horning

Keyword(s):

Heavy Metal ◽

Metal Accumulation ◽

Heavy Metal Contamination ◽

Heavy Metal Accumulation ◽

Cadmium Content ◽

Salt Glands ◽

Manganese Zinc ◽

Copper Manganese ◽

Cadmium Lead ◽

The Individual

Tissues taken from crested terns were analysed for cadmium, lead, copper, chromium, manganese, zinc and iron. The birds were taken from a breeding colony in a non-industrialized region (North Solitary I., NNE. of Coffs Harbour, N.S.W.) and from one near an industrialized region (Big I., Port Kembla, N.S.W.). The birds from the industrialized region did not show any consistent evidence of significant heavy metal contamination when compared to those of the non-industrialized region. The individual tissues were also compared to assess the distribution of the various metals, and the relative degree to which each tissue accumulates the metals. Some accumulation of chromium, copper, manganese, lead and, to a lesser degree, cadmium and zinc was found in the salt glands. The kidneys had a relatively large cadmium content.

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The Study of Heavy Metal Pollution Characteristics in Soil of Typical Urban-Industrial Wasteland

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.260-261.1189 ◽

2012 ◽

Vol 260-261 ◽

pp. 1189-1194

Author(s):

Su Chen ◽

Lei Chao ◽

Li Na Sun ◽

Tie Heng Sun

Keyword(s):

Heavy Metal ◽

Pollution Index ◽

Quality Standard ◽

Liaoning Province ◽

Land Utilization ◽

Metal Quality ◽

Pollution Levels ◽

Environment Quality ◽

Object Based ◽

Cadmium Lead

This study chooses the industrial wasteland after the relocation of a metal processing factory in Shenyang, Liaoning Province of China as the research object. Based on level three soil heavy metal quality standards of Soil Environment Quality Standard (GB15618-1995) in China, the pollution levels of four heavy metals (cadmium, lead, copper and zinc) in survey area are Cd> Cu> Zn> Pb; the Cd pollution is the most serious one, followed by Cu and Zn. The Pb content is low. Average comprehensive pollution index of Cd, Cu, Zn and Pb in soil of the wasteland is 17.33, which belong to Grade V severe pollution. The most polluted point is J-12, followed by J-11 and J-16. The land utilization risk assessment of the wasteland should be strengthened, and appropriate and necessary repair measures should be taken, such as planting accumulative or tolerant plants.

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Impact of two iron(III) chelators on the iron, cadmium, lead and nickel accumulation in poplar grown under heavy metal stress in hydroponics

Journal of Plant Physiology ◽

10.1016/j.jplph.2011.12.012 ◽

2012 ◽

Vol 169 (6) ◽

pp. 561-566 ◽

Cited By ~ 14

Author(s):

Victor G. Mihucz ◽

Árpád Csog ◽

Ferenc Fodor ◽

Enikő Tatár ◽

Norbert Szoboszlai ◽

...

Keyword(s):

Heavy Metal ◽

Heavy Metal Stress ◽

Metal Stress ◽

Nickel Accumulation ◽

Cadmium Lead

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Synthesis and Characterization of Activated Carbon/ZnO Nanocomposite from Water Hyacinth for Heavy Metals Adsorption and its Antimicrobial Activity

Asian Journal of Chemistry ◽

10.14233/ajchem.2021.22941 ◽

2021 ◽

Vol 33 (3) ◽

pp. 551-556

Author(s):

Shivakumar Lakshmipurada ◽

Kankara Ramakrishna Reddy ◽

Sureshkumar Sundaravel

Keyword(s):

Heavy Metal ◽

Antimicrobial Activity ◽

Activated Carbon ◽

Metal Ions ◽

Zno Nanoparticles ◽

Water Hyacinth ◽

Heavy Metal Ions ◽

Electrostatic Interactions ◽

Cadmium Lead ◽

Heavy Metal Ions Removal

In present work, the activated carbon was prepared from water hyacinth (Eichhornia crassipes) and ZnO nanoparticles synthesized by chemical process. Nanocomposites were formed using activated carbon and ZnO nanoparticles to get improved electrostatic interactions for the successful adsorption of heavy metal ions such as nickel, cadmium, lead and chromium from aqueous solution. The prepared nanocomposites were further characterized using XRD, SEM and EDAX techniques. The heavy metal ions removal efficacy was evaluated through ICP-OES. The result showed that the prepared nanocomposite efficiently adsorbed 76.75-92.40% nickel, 75.80-92.25% cadmium, 86.25-96.30% lead and 76.37-95.26% chromium. Nanocomposites showed a significant antimicrobial activity against Streptococci and B. subtilis.

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Associations between urinary heavy metal concentrations and blood pressure in residents of Asian countries

Environmental Health and Preventive Medicine ◽

10.1186/s12199-021-01027-y ◽

2021 ◽

Vol 26 (1) ◽

Author(s):

Yuki Mizuno ◽

Hana Shimizu-Furusawa ◽

Shoko Konishi ◽

Tsukasa Inaoka ◽

Sk Akhtar Ahmad ◽

...

Keyword(s):

Heavy Metals ◽

Blood Pressure ◽

Heavy Metal ◽

Individual Characteristics ◽

Linear Regression Models ◽

Asian Countries ◽

Cross Sectional ◽

Metal Concentrations ◽

Heavy Metal Concentrations ◽

Cadmium Lead

Abstract Background Previous studies have suggested that exposures to heavy metals (arsenic, cadmium, lead, and selenium) may be associated with differences in blood pressure. However, the findings of these studies have been inconsistent. This study was performed to examine the associations between urinary heavy metal concentrations and blood pressure among residents of four Asian countries (Bangladesh, Indonesia, Nepal, and Vietnam). Methods This cross-sectional study examined 1899 adults in four Asian countries. Urinary concentrations of heavy metals were measured by inductively coupled plasma mass spectrometry. A questionnaire survey was administered regarding individual characteristics. Anthropometric measurements (height and weight) were performed. Systolic and diastolic blood pressures were measured after a short rest. Multiple linear regression models were applied to investigate associations between urinary heavy metal concentrations and blood pressure after adjustments for age, sex, and body mass index. Results The geometric means of the urinary concentrations of arsenic, cadmium, lead, and selenium were 84.6, 0.885, 2.09, and 16.5 μg/g creatinine, respectively. The urinary arsenic concentrations were slightly higher than those typically reported in non-polluted populations, while urinary cadmium, lead, and selenium concentrations were equivalent or slightly lower. The urinary lead concentrations were positively associated with both systolic and diastolic blood pressure, but urinary selenium concentrations were negatively associated with them. Conclusions Variations in the urinary concentrations of lead and selenium were associated with blood pressure at low levels of exposure/intake.

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Investigations Of Supported Bi- And Tri-Metallic Nzvi: Nitrate Reduction And Heavy Metal Removal

10.26686/wgtn.17144402.v1 ◽

2021 ◽

Author(s):

◽

Loc Tran

Keyword(s):

Heavy Metal ◽

Natural Water ◽

Nitrate Reduction ◽

Metal Removal ◽

Heavy Metal Removal ◽

Synthetic Methods ◽

Toxic Heavy Metals ◽

Tem Analysis ◽

Inorganic Substances ◽

Cadmium Lead

<p>nZVI has been well documented as an effective reagent to remove contaminants, including organic and inorganic substances. However, the drawbacks of nZVI are agglomeration and bioaccumulation due to its magnetic property and nanosize. One of the solutions for these problems is putting nZVI on non-toxic support. Microsilicate600 (Misi), a silicate from a geothermal deposit in Rotorua, New Zealand, has been established to be useful in adsorbing nZVI. Doping nZVI with other metals to generate bimetallic and trimetallic materials is a method to increase its reactivity. These dopant metals function as catalysts in enhancing the electron transfer from Fe(0) core to contaminants. In this research project, the effect of doping metals on nZVI to generate bimetallic or trimetallic nZVI particles and effect of adsorbing these resulting particles on Misi were investigated. The reactivity of these materials towards the removal of different contaminants such as nitrate and toxic heavy metals was examined. Supported bimetallic nZVI@Misi were synthesised using different dopant metals, including Ni, Cu, Zn, and Pd. Supported trimetallic nZVI@Misi was synthesised by doping Pd and Cu on the surface of nZVI@Misi. Both supported bimetallic and trimetallic materials were prepared using different Misi preparations, contents of dopants, and synthetic methods. All these doped materials had higher reactivity than non-doped nZVI@Misi in removing nitrate. Misi that was calcined and FeOOH-coated is the most optimised-prepared support. Moreover, materials prepared via deposition method had higher reactivity in reducing nitrate than those prepared via co-reduction method. This is due to the distribution of dopant metals on nZVI, which was observed in TEM analysis. Of these materials, Ni-doped, Cu-doped, and Pd-Cu- doped nZVI@Misi were the most promising materials. They not only reduced nitrate effectively but also were not significantly affected by naturally occurring factors such as oxygen, chloride, sulfate, carbonate, and phosphate. During nitrate reduction, the generation of metal by-products was minimal. Interestingly, their reactivity in natural water was relatively similar to that in lab-prepared samples. The representative materials including supported Ni-doped, Cu-doped, and non-doped nZVI@Misi, were used for heavy metal removal. These materials effectively removed cadmium, lead, and chromium in both lab-prepared samples and natural water.</p>

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