Carduus nutans L and the Effect on the Heavy Metals and Microenvironment Biota

2017 ◽  
Vol 68 (7) ◽  
pp. 1524-1527
Author(s):  
Luminita Cojocariu ◽  
Despina Maria Bordean ◽  
Aurica Breica Borozan ◽  
Simona Nita ◽  
Adina Horablaga
Keyword(s):  
Heavy Metals ◽  
Zinc Concentration ◽  
Rhizosphere Soil ◽  
Atomic Absorption Spectrophotometry ◽  
Soil Samples ◽  
Total Chromium ◽  
Carduus Nutans ◽  
Flame Atomic Absorption ◽  
Number Of Bacteria ◽  
Iron And Manganese

The aim of the study was to identify the effect of Carduus nutans L on the heavy metals and microenvironment biota. Ten plants of Carduus nutans L were collected togheter with the rhizosphere soil and as reference the soil was collectued from an abandonated pasture where no vegetation was growing. The metal concentrations in the filtrate were determined by flame atomic absorption spectrophotometry and the total number of bacteria and actinomycetes from the average soil samples was established. Based on the mathematical models we managed to identify the effects of the heavy metals present in the Carduus nutans L rhizosphere soil samples on the development and presence of bacteria and actinomycetes colonies. We can state that iron and manganese influence the CFU of bacteria and actinomycetes and these in their turn have an impact on the zinc concentration in soil which will influence total chromium content and copper concentrations.

scholarly journals In situ immobilisation of heavy metals in soils using natural clay minerals

2020 ◽  
Vol 66 (No. 12) ◽  
pp. 632-638
Author(s):  
Senad Murtić ◽  
Emina Sijahović ◽  
Hamdija Čivić ◽  
Mirza Tvica ◽  
Josip Jurković
Keyword(s):  
Heavy Metals ◽  
Ethylenediaminetetraacetic Acid ◽  
Atomic Absorption Spectrophotometry ◽  
Soil Samples ◽  
Natural Clay ◽  
Aqua Regia ◽  
Absorption Spectrophotometry ◽  
Suitable Technique ◽  
Heavy Metals In Soils

This study attempted to evaluate the efficiency of zeolite and pyrophyllite ore materials in reducing the mobility of heavy metals in soil near the lignite mining dumps, and consequently in their availability for plants. Extraction of pseudo-total and available forms of heavy metals from soil samples was performed by using aqua regia and ethylenediaminetetraacetic acid, respectively. Concentrations of heavy metals in soil and plant samples were determined by atomic absorption spectrophotometry. The results of this study illustrate that application of zeolite and pyrophyllite could be a suitable technique to reduce heavy metals availability in soils. Zeolite treatments have been shown to be significantly effective in reducing cadmium (Cd) mobility, as well as pyrophyllite treatments in reducing lead (Pb) mobility in the studied soil, regardless of applied rates. The accumulation of heavy metals in leaves of maize grown on soil plots treated by zeolite and pyrophyllite, was found to be lower compared to the untreated plots. This finding was to be expected, considering the effects of these treatments on heavy metals mobility in the studied soil.

Co-precipitation of Ni, Cr, Mn, Pb and Zn in industrial wastewater and sediment samples with copper(II) cyclo-hexylmethyldithiocarbamate for their flame atomic absorption spectrometric determination

2012 ◽  
Vol 66 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Ayodele Rotimi Ipeaiyeda ◽  
Adekunle Johnson Odola
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Industrial Wastewater ◽  
Atomic Absorption Spectrophotometry ◽  
Sample Volume ◽  
Sediment Samples ◽  
Flame Atomic Absorption ◽  
Precipitation Procedure ◽  
Co Precipitation

A co-precipitation technique for nickel(II), chromium(II), manganese(II), lead(II) and zinc(II) with the aid of copper(II) cyclo-hexylmethyldithiocarbamate was established. The influences of some analytical parameters such as pH, sample volume, amounts of cyclo-hexylmethyldithiocarbamate and copper(II) on the recovery of metal ions were investigated. The heavy metals in the precipitate were determined by flame atomic absorption spectrophotometry. The range of detection limits for the heavy metals was 0.003–0.005 mg/L. The atomic spectrometric technique with co-precipitation procedure was successfully applied for the determination of Ni, Cr, Mn, Pb and Zn in industrial wastewater and sediment samples from Ladipo stream in Lagos, Nigeria. The mean concentrations for these metals using co-precipitation procedure were not significantly different from corresponding concentrations obtained using spectrometric techniques without co-precipitation procedure.

scholarly journals Evaluation of Heavy metals pollution around Kano municipal solid waste Dumpsites, Kano state, Nigeria

2021 ◽  
Vol 6 (1) ◽  
pp. 146-152
Author(s):  
M. Z. Karkana ◽  
◽  
Mujahid Ajah Matazu
Keyword(s):  
Heavy Metals ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Soil Samples ◽  
Pollution Indices ◽  
Surface Soils ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
The Mean ◽  
Mean Concentration

The research was conducted to assess the level of heavy metals contamination using single and integrated pollution indices in soils around municipal solid waste dumpsites of Kano Metropolis, Kano State, Nigeria. Forty two soil samples were collected from seven municipal solid waste dumpsites of Kano metropolis using circular plot method. A stainless hand auger at a depth of (0 to 15) top soils and sub-surface soils (15-30cm) depth were collected and analyzed with Flame atomic absorption spectrophotometer to determine the heavy metal concentration. The mean concentration (mg/kg) of heavy metals from the depth of (15-30 cm) were observed to follow a decreasing order Pb (7.71)>Zn (0.50) > Ni (0.45) > Cr (0.31) > Cd (0.025) while for surface soils (0- 15cm) the mean concentration were in the following order: Pb (1.77) > Ni (0.49) > Zn (0.30) > Cr (0.27) > Cd (0.012).The results showed that calculated CF and Er recorded that investigated soil samples are uncontaminated with Zn, Pb, Cd, Cr and Pb and Ni. The pollution load index (PLI) was less than unity showing that there was minimum pollution in the studied dumpsite. The potential ecological risk showed that soil samples were in the class of low contaminated with the studied heavy metals. The results showed that concentrations of heavy metals of soil samples from dumpsites location at waste dumpsites of Kano Metropolis were within limits of European Union (2002) standards. Keywords: Heavy metals, single and integrated pollution indices Kano, Municipal dumpsites

scholarly journals Quality of Commercial Coffees: Heavy Metal and Ash Contents

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Mariana Teixeira Pigozzi ◽  
Flávia Regina Passos ◽  
Fabrícia Queiroz Mendes
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Ash Content ◽  
Flame Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Flame Atomic Absorption ◽  
Brazilian Legislation ◽  
Cadmium Lead ◽  
Ground Coffee

This study aimed to quantify the ash content and to determine the concentration of heavy metals in roasted ground coffee and their respective infusions. The ash content was determined by incineration of the samples, and the quantification of heavy metals was performed by flame atomic absorption spectrophotometry for the following metals: cadmium, lead, copper, chromium, nickel, and zinc. According to the ash analysis, 15% of the roasted ground coffee samples were within the standards established by the legislation of the state of São Paulo, which has set an ash content of below 5%. In the roasted ground coffee samples, the Cd, Cu, Ni, and Zn contents did not exceed the limit established by Brazilian legislation. In several samples, both Pb and Cr were found in high levels, exceeding the limits established by Brazilian legislation. In the infusions of roasted ground coffee, the Cd, Cu, Cr, and Ni contents were below the detection limit of the equipment. Zn was found in all infusions and Pb was only detected in seven coffee infusion samples. Overall, the concentrations of heavy metals found in the commercially roasted ground coffee and their respective infusions are lower than the limits recommended by the official inspection agencies and, thus, are suitable for consumption.

scholarly journals Chemometric Analysis of Grapes

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Sasa S. Ranđelovic ◽  
Danijela A. Kostic ◽  
Biljana B. Arsic ◽  
Snezana S. Mitic ◽  
Ivana D. Rasic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Soil Water ◽  
Atomic Absorption Spectrophotometry ◽  
Chemometric Analysis ◽  
Flame Atomic Absorption Spectrophotometry ◽  
The Road ◽  
Absorption Spectrophotometry ◽  
Flame Atomic Absorption

AbstractConcentrations of several heavy metals in soil, water and grape samples (variety Plovdina) collected at five locations at different distances from the road in Southeast Serbia were determined using the Flame Atomic Absorption Spectrophotometry. There was a decrease in analyzed samples with an increase in distance from the road. A complete absence of several examined, very harmful heavy metals (Mn, Ni, and Cd) in all analyzed samples was found. The analysis of grape samples proved the presence of iron, zinc and copper in concentration ranges 3.3-19.8, 0.31-0.63, and 3.4-13.6 μg g

scholarly journals Speciation And Mobility Study Of Selected Heavy Metals In Kofe Dumpsite Soil Of Jimma Town, Jimma, Ethiopia

1970 ◽  
Vol 10 (5) ◽  
pp. 629-641
Author(s):  
Kassim Kedir ◽  
Abera Gure ◽  
Yared Merdassa
Keyword(s):  
Heavy Metals ◽  
Sequential Extraction ◽  
Extraction Procedure ◽  
Soil Samples ◽  
High Tendency ◽  
Depth Profiles ◽  
Flame Atomic Absorption ◽  
Bioavailable Fraction ◽  
Jimma Town ◽  
Vertical Mobility

Speciation and mobility of selected heavy metals including Cd, Pb and Fe were investigated in Kofe dumpsite soils of Jimma Town, Jimma, Ethiopia. To study vertical mobility of the metals, soil samples were collected at three depth profiles comprising surface soil (0-10 cm), subsoil (20-30 cm), and bottom soil (40-50 cm) using soil auger. Similarly, for horizontal mobility assessment, soil samples were collected from 5 m, 10 m and 15 m distances starting from the edge of the dumpsite in east, west, north and south directions. Control soil samples were also collected at the same depth profiles, from 200 m away from the dumpsite. The collected samples were air dried, sieved as well as ground before processing utilizing a Community Bureau of Reference (BCR) sequential extraction procedure. The fraction of the target metals in the extracted samples were then determined by flame atomic absorption spectroscopy (FAAS). The mobility factor (%MF) of the target metals was investigated in both vertical and horizontal variations and the obtained results showed that the target metals have exhibited both vertical and horizontal mobility. The texture, organic matter and pH of the soil samples were also analyzed for correlation study. Variation among obtained results, i.e., %MF and concentration of analytes, were evaluated using one way ANOVA at (P<0.05). It was observed that Cd and Pb exhibited vertical mobility and thus could lead to pollution of the underground water. Similarly, the highest amount of Pb in the bioavailable fraction may also indicate its horizontal mobility and its high tendency to pollute surface water, sediment as well as agricultural products.Key Words: Speciation, Mobility, Sequential extraction, Heavy metals

scholarly journals Preliminary study on Copper, Zinc and Iron concentration in soils from waste dumping site in Tanah Merah, Kelantan, Malaysia

2021 ◽  
Vol 8 (1) ◽  
pp. 12-16
Author(s):  
Muhammad Firdaus Abdul Karim ◽  
Kamarul Hambali ◽  
Ai Yin Sow ◽  
Nor Hizami Hassin ◽  
Muhamad Azahar Abas ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Iron Concentration ◽  
Atomic Absorption Spectrophotometry ◽  
Soil Samples ◽  
Complex Matrix ◽  
Heavy Metal Concentrations ◽  
Absorption Spectrophotometry ◽  
Dumping Site ◽  
Copper Zinc ◽  
Preliminary Study

Soil is a complex matrix and a major reservoir of contamination. It can bind many potential toxicelements such as heavy metals, and they can exist in various forms. The main objective was tocharacterize the soil sample in relation to heavy metal concentrations in the Tanah Merah wastedumping site. Soil samples were taken from three different locations around the waste dumping siteand determined by Atomic Absorption Spectrophotometry (AAS) for Cu, Fe and Zn determination.High concentrations of Fe (9.18 mg/L) as compared to Cu (0.53 mg/L), and Zn (0.49 mg/L) werefound in the soil samples but were lower than previous studies. However, early precautionaryactions need to be implemented since a higher volume of waste disposal in the future might causechanges in heavy metals intensity at the waste dumping site.

scholarly journals Heavy Metal Assessments of Soil Samples from a High Natural Background Radiation Area, Indonesia

Toxics ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 39
Author(s):  
Eka Djatnika Nugraha ◽  
June Mellawati ◽  
Wahyudi ◽  
Chutima Kranrod ◽  
Makhsun ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Background Radiation ◽  
Natural Radionuclides ◽  
Risk Index ◽  
Natural Radionuclide ◽  
Soil Samples ◽  
Natural Background ◽  
Natural Background Radiation ◽  
Flame Atomic Absorption

Mamuju, Indonesia, is an area with high natural background radiation. This study assesses heavy metal content in soil samples from this area to determine the level of public and environmental hazard it presents. This study analyzes natural radionuclide elements using high purity germanium (HPGe) gamma spectrometry and performs heavy metals analysis using a flame atomic absorption spectrometry (FAAS). Moreover, pollution indices and descriptive analyses were used to assess heavy metal contamination in the environment and the correlation between heavy metals and radionuclides. The results demonstrate that soil samples in several areas of Mamuju contain a high concentration of the natural radionuclides 226Ra and 232Th, and that heavy metal concentrations in the soil decrease in the sequence Zn > Pb > Cr > Cu > Ni > Cd. This study revealed that soil samples from Mamuju are moderately contaminated. There was a strong positive relationship between 226Ra, 232Th, ambient dose equivalent rate, and Pb. Ecological risk index (RI) and cumulative pollution index (IPI) values in Mamuju are 2.05 and 125, respectively, which are possible hazards to human health as a result. Pb concentration in the Mamuju soil samples ranged from 109 to 744 mg kg−1, exceeding the worldwide average of 27 mg kg−1.

scholarly journals HEAVY METAL (Cu, Zn, Fe, Mn, Pb, Cd) CONCENTRATION IN SOILS OF TYUMEN

2020 ◽  
pp. 127-134
Author(s):  
A. S. Petukhov ◽  
T. A. Kremleva ◽  
N. A. Khritokhin ◽  
G. A. Petukhova ◽  
P. I. Kaidunova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metallurgical Plant ◽  
Urban Areas ◽  
Limit Of Detection ◽  
Control Sample ◽  
Atomic Absorption Spectrophotometry ◽  
Soil Samples ◽  
Oil Refining ◽  
Toxic Heavy Metals

Toxic heavy metals contaminating soil get accumulated by plants, cause degradation of plant communities, and eventually penetrate human bodies with food. Therefore, it is urgent to investigate the content of heavy metal in soils in urban areas. The aim of this study was to investigate the concentration of Cu, Fe, Mn, Pb and Cd in soils of Tyumen. Top soil was sampled at the semi-clean control site near a highway, and at sites near metallurgical, motor-building, oil-refining and battery-manufacturing facilities in Tyumen, Russia. The concentration of active and acid-soluble forms of heavy metals was determined by atomic-absorption spectrophotometry. All the soil samples from urban areas were polluted with Fe. The samples collected near the battery manufactory and the metallurgical plant were contaminated with Pb and Zn, respectively, with maximum allowable concentration exceeded. The Cu, Mn and Zn content in most soil samples was higher than that in the control sample. The Cd content in all samples was at the lower limit of detection. The average percentages of active forms of Mn and Zn in soils were the highest among all the studied metals. The most intense accumulation of all heavy metals was observed near the battery manufactory and the metallurgical plant. The obtained results can be useful for environmental monitoring in Tyumen.

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