scholarly journals Assessing the potential of Khayasenegalensis in phytoremediation of heavy metals under borehole water and tannery effluent irrigation

2021 ◽  
Vol 14 (1) ◽  
pp. 167-176
Author(s):  
A. Zakari ◽  
A.A. Audu
Keyword(s):  
Heavy Metals ◽  
Soil Samples ◽  
Plant Tissues ◽  
Tannery Effluent ◽  
Bioconcentration Factors ◽  
Metal Contents ◽  
Borehole Water ◽  
The Media ◽  
Translocation Factors ◽  
Accumulator Plant

Khayasenegalensis was planted on soil irrigated with tannery effluent and borehole water for duration of three months. Plant samples were collected after harvest and soil samples were collected before planting and after harvesting. Atomic Absorption Spectroscopy (AAS) was used to determine the concentration of heavy metals in the planting media and plant tissues. The aim was to establish the phytoremediation potential of Khayasenegalensis under these conditions. After harvesting, a noticeable decrease in the concentrations of Cd, Cr, Cu Ni, Pb and Zn in the media was observed from the initial values. The highest levels of Cd (5.53±0.56mg/kg), Cr (13.99±0.82mg/kg), Pb(10.6110.61±0.57mg/kg, Ni (8.33±2.78mg/kg)and Zn(25.72±0.00 mg/kg) accumulation were found in the roots, whereas the highest Cu (7.29±1.80mg/kg) concentrations was observed in the shoot. The roots of Khayasenegalensis were found to be suitable for the phytostabilization heavy metals in both the tannery effluent and borehole water irrigated media. In addition, Cd, Cr, Cu, Ni and Pb mainly accumulated in the Khayasenegalensisroots. The results of translocation factors (TF) and bioconcentration factors (BCF) of Khayasenegalensis for heavy metals revealed that Khayasenegalensis is an excluder plant for Cd, Cr, Pb, Ni and Zn and a potential accumulator plant for Cu serving as an ideal remediation plant for this metal. Furthermore, the increasing heavy metal contents in soil that have been irrigated with tannery effluent resulted in the accumulation of these metals inKhayasenegalensis.

scholarly journals Heavy Metal Residues in Soil and Accumulation in Maize at Long-Term Wastewater Irrigation Area in Tongliao, China

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Yintao Lu ◽  
Hong Yao ◽  
Dan Shan ◽  
Yichen Jiang ◽  
Shichao Zhang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Growth Cycle ◽  
Wastewater Irrigation ◽  
Pollution Level ◽  
Irrigated Area ◽  
Metal Contents ◽  
Maize Roots ◽  
Translocation Factors

Soil and plant samples were collected from Tongliao, China, during the maize growth cycle between May and October 2010. Heavy metals, such as Cr, Pb, Ni, and Zn, were analyzed. The concentrations of Cr, Pb, Ni, and Zn in the wastewater-irrigated area were higher than those in the topsoil from the groundwater-irrigated area. The concentrations of metals in the maize increased as follows: Pb < Ni < Zn < Cr. In addition, Cr, Pb, and Ni mainly accumulated in the maize roots, and Zn mainly accumulated in the maize fruit. The results of translocation factors (TF) and bioconcentration factors (BCF) of maize for heavy metals revealed that maize is an excluder plant and a potential accumulator plant and can serve as an ideal slope remediation plant. In addition, the increasing heavy metal contents in soils that have been polluted by wastewater irrigation must result in the accumulation of Cr, Pb, Ni, and Zn in maize. Thus, the pollution level can be decreased by harvesting and disposing of and recovering the plant material.

Differences in trace element profiles of three subspecies of Silene parnassica (Caryophyllaceae) growing on ophiolitic substrate

2016 ◽  
Vol 64 (3) ◽  
pp. 235 ◽  
Author(s):  
Sanja Đurović ◽  
Ksenija Jakovljević ◽  
Uroš Buzurović ◽  
Marjan Niketić ◽  
Nevena Mihailović ◽  
...  
Keyword(s):  
Trace Element ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Soil Samples ◽  
Plant Tissues ◽  
Correlation Matrices ◽  
Organic C ◽  
Spearman’S Rank Correlation ◽  
Trace Element Profiles ◽  
Translocation Factors

The aim of the present study was to compare trace element profiles and the differences in uptake and translocation of trace elements in plants from five populations (three from Greece and two from Serbia) belonging to three subspecies of Silene parnassica Boiss. & Sprun. growing on ophiolitic substrates. For comparison of the subspecies, bioconcentration and translocation factors were used, as well as Spearman’s rank correlation coefficients for concentrations of elements in root and shoot samples. Chemical characteristics of the soil samples (pH, organic C, P2O5, K2O, Ca, Fe, Mg, Mn, Ni, Zn, Cu, Cr, Co, Cd and Pb) and plant samples (P2O5, K2O, Ca, Fe, Mg, Mn, Ni, Zn, Cu, Cr, Co, Cd and Pb) were determined, as well as bioconcentration and translocation factors and correlation matrices. All the three subspecies acted as strong Ni accumulators, with equal concentrations of Ni in roots and shoots, the values being several times higher than 100 mg kg–1, exceeding concentrations of available Ni in the soil. Concentrations of Cu and Cr in the aboveground plant tissues in samples from three localities were several times higher than expected, even for plants growing on metalliferous soils, exceeding, by multiple times, the available concentrations in the soil samples.

scholarly journals Distribution of Heavy Metals in the Soils Associated with the Commonly Used Pesticides in Cotton Fields

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Saadia Rashid Tariq ◽  
Musharaf Shafiq ◽  
Ghayoor Abbas Chotana
Keyword(s):  
Heavy Metals ◽  
Agricultural Soils ◽  
Agricultural Practices ◽  
Soil Samples ◽  
Uv Detector ◽  
Metal Contents ◽  
Cotton Fields

Agricultural soils contain both heavy metals and pesticides originating from various agricultural practices. It is quite important to study the relationships between these two classes of compounds. To accomplish this, 52 soil samples were collected from cotton fields and analyzed for their metal contents (Ni, Cu, Co, Pb, Cr, and Cd) and levels of most commonly used pesticides (imidacloprid, acetamiprid, and emamectin). FAAS was used for metal estimation and the pesticides were determined by HPLC equipped with UV detector. The results of the study revealed slightly enhanced levels of Ni and Cd in these samples while the rest of the metals were present within tolerable range. Acetamiprid residues in soil were strongly positively correlated with Cu and negatively correlated with Cr. Similarly, imidacloprid in soil was negatively correlated with Ni. Thus it was evidenced that Cu stabilizes acetamiprid while Cr and Ni facilitate the degradation of acetamiprid and imidacloprid in the soil.

scholarly journals Hydroponic Phytoremediation of Ni, Co, and Pb by Iris Sibirica L.

2021 ◽  
Vol 13 (16) ◽  
pp. 9400
Author(s):  
Shuming Wan ◽  
Jun Pang ◽  
Yiwei Li ◽  
Yanping Li ◽  
Jia Zhu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
High Stress ◽  
Wetland Plant ◽  
Bioconcentration Factors ◽  
Metal Mine ◽  
Plant Shoots ◽  
Translocation Factors ◽  
Hydroponic Conditions

Heavy metal pollution in mine wastelands is quite severe. Iris sibirica L., an emergent wetland plant, is characterized by an ability to survive under high stress of heavy metals. This study aimed to explore the phytoremediation ability of nickel (Ni), cobalt (Co), and lead (Pb) by Iris sibirica L. under hydroponic conditions. A series of tests were conducted at different metal stress conditions to evaluate the phytoextraction and tolerance of Iris sibirica L. The concentrations of Ni, Co, and Pb in plant shoots reached their highest values in 500 mg L−1 treatments, where they were 6.55%, 23.64%, and 79.24% higher than those in 300 mg L−1, respectively. The same concentrations in roots also reached their peak in 500 mg L−1 treatments, where they were 5.52%, 33.02%, and 70.15% higher than those in 300 mg L−1, respectively. Bioconcentration factors (BCF) for Ni, Co, and Pb revealed the phytoextraction ability of Iris sibirica L., and the translocation factors (TCF) showed that Ni may be most easily translocated in the plant, followed by Co and Pb. This study indicates that, compared with Ni and Co, Iris sibirica L. is more suitable for the phytoremediation of Pb-contaminated metal mine wastelands.

scholarly journals Heavy metals and their bioavailability from soils in the long-term polluted Central Spiš region of SR

2009 ◽  
Vol 55 (No. 4) ◽  
pp. 167-172 ◽  
Author(s):  
P. Takáč ◽  
T. Szabová ◽  
Ľ. Kozáková ◽  
M. Benková
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Statistical Processing ◽  
Soil Samples ◽  
Acidic Ph ◽  
Mobile Form ◽  
Lead And Zinc ◽  
Mobile Forms ◽  
Metal Contents

The heavy metal contents and their bioavailability were monitored in soils of Central Spiš region of SR. This area belongs to long term contaminated and hygienically loaded areas. Soil contamination by heavy metals is caused especially by ore mining, processing and treatment. Soil samples from the Central Spiš contained higher proportions of mobile forms which corresponded to the following sequence Pb > Zn > Cu, while for mobilizable forms the sequence of investigated metals was as follows: Cu > Zn > Pb. Soil pH is one of the parameters that affect significantly the share of bioavailable forms of metals. Higher proportions of mobile fractions of metals were detected in samples taken from soils with acidic pH. Statistical processing confirmed a relationship between the percentage share of lead and zinc in the mobile form and the level of pH/KCl, which was significant for Zn: <I>r</I> = –0.53. The relationships for lead and copper were insignificant.

scholarly journals Determination of Molybdenum Contents and Relation of Some Heavy Metals in the Soil of Meadow-Pasture Terraces Between Kırıkhan-Reyhanlı

2019 ◽  
Vol 7 (1) ◽  
pp. 13 ◽  
Author(s):  
Mehmet Yalçın ◽  
Kerim Mesut Çimrin
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Soil Samples ◽  
Molybdenum Content ◽  
Limit Values ◽  
Significant Relationships ◽  
Metal Contents ◽  
Different Depths

This study was aimed to determine the molybdenum content of meadow - pasture soil between Kırıkhan and Reyhanlı in Hatay province and to determine the relations of the molybdenum content with some heavy metals in the soil. For this purpose, two different depths (0-20 and 20-40 cm) representing grassland pasture lands and 80 soil samples from 40 different points were taken. Cadmium (Cd), Cobalt (Co), Nickel (Ni), Lead (Pb), Copper (Cu), Iron (Fe), and Molybdenum (Mo) contents were determined in the soil samples. The contents of the available Cd, Co, Pb, Cu, Fe, Ni and Mo of the soil were determined by reading the 0.005 M DTPA + 0.01 M CaCl2 + 0.1 M TEA extracts in the ICP instrument. The results of the research shows that the Cd contents of the soils are between 0.01-0.32 ppm; Co contents are from 0.01 to 4.97 ppm; Ni contents 0.00 to 20.00 ppm; Pb contents 3.00-67.00 ppm; Cu contents 0.26-7.48 ppm; The Fe contents are between 4.00 and 61.00 and the Mo contents are between 0.001 and 0.064 ppm. It was determined that there are significant positive relationships between Co, Ni, Pb, Cu and Fe contents of Mo in the soil. It was also determined that there are significant positive significant relationships between Cd and Co; Co with Ni, Pb, Fe and Pb and Cu, Fe and Cu and Fe. No heavy metal pollution was found when the heavy metal contents of the regional soils were compared with the limit values.

scholarly journals Heavy metal contents in Latosols cultivated with vegetable crops1

2016 ◽  
Vol 46 (4) ◽  
pp. 391-400 ◽  
Author(s):  
Laércio Santos Silva ◽  
◽  
Izabel Cristina de Luna Galindo ◽  
Clístenes Williams Araújo do Nascimento ◽  
Romário Pimenta Gomes ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Principal Component Analysis ◽  
Agricultural Practices ◽  
Principal Component ◽  
Soil Samples ◽  
Vegetable Crops ◽  
Chemical Analyses ◽  
Analysis Techniques ◽  
Metal Contents

ABSTRACT Heavy metals are naturally found in soils, but their levels may increase as a result of anthropogenic actions. This study aimed at determining the concentrations of Cd, Cu, Mn, Ni, Pb and Zn in Yellow Latosol from vegetable crops areas, as well as the influence of the cultivation and position in the landscape on the accumulation of these elements. Soil samples were collected from five farming areas and four areas with natural vegetation, which served as a reference. Soil was collected along the planting rows from three transect positions (upper, middle and lower sections of the slope), as well as from the upper portion of forest areas, at three depths (0.0-0.10 m, 0.10-0.30 m and 0.30-0.60 m). The results from the chemical analyses indicated that Cd, Cu, Mn, Pb and Zn levels in the soil increased as a result of cultivation. Only Cd and Cu concentrations were above the quality reference values for the Pernambuco State. The multivariate analysis techniques used were efficient at separating the environments and at differentiating the origin of the metals. Soils from forest areas were clearly separated from croplands, demonstrating the effect of agricultural practices on the metal contents in the soils. The principal component analysis indicated a predominantly anthropogenic origin (phosphate fertilizing) for Cd, in more superficial soil samples.

scholarly journals Assessment of Concentrations of Heavy Metals in Soils around ESPRO Asphalt Production and Quarry Site, Wasinmi, Osun State Southwest Nigeria

2019 ◽  
pp. 1-10
Author(s):  
O. O. Alabi ◽  
S. O. Sedara ◽  
S. Y. Awowole
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Groundwater Exploration ◽  
Soil Samples ◽  
Asphalt Production ◽  
Mean Values ◽  
Low Concentrations ◽  
Metal Contents ◽  
Southwest Nigeria ◽  
Mean Concentration

This work examined the concentration of heavy metals in soil samples around ESPRO Asphalt Production and Quarry Site located in Wasinmi, Irewole Local Government Area, Osun State. A total of nine (9) soil samples were collected from three points with distances of 0, 1 and 2 km from the quarry site. Atomic Absorption Spectroscopy (AAS) was used to determine the concentrations of heavy metals in the soil samples. The results revealed that the mean values metal contents in the soil samples analyzed were in the order Fe>Zn>Cu>Cr>Mn>Pb>Cd. The concentration of the heavy metals in the soil samples were found to decrease as the soil depths increased from 0-25 cm and also as the spatial distances of the sampled locations increased from the quarry plant. The study also showed that low concentrations of Lead (Pb) had a mean concentration value of 0.87 ppm and Cadmium (Cd) with a mean concentration value of 0.29 ppm. It was also observed that Iron (Fe) had the highest mean concentration value of 148.8 ppm. The study concluded that quarrying activities raised the soil heavy metal contents up to the range of about 2 km away from the quarry site. This can be attributed to the number of years of mining and excavation activities in the study area and accumulation of the heavy metal concentrations over time and this could be dangerous to the site environments, especially for farming and groundwater exploration activities in the area.

scholarly journals Survey study for transfer of cadmium and chromium in soil and wheat (Triticum aestivum L.), grown on contaminated soils

1970 ◽  
pp. 06-10
Author(s):  
Fahad Iftikhar Virk ◽  
Muhammad Qaisar Nawaz, Muhammad Sarfraz ◽  
Sadia Bibi ◽  
Muhammad Waqas
Keyword(s):  
Heavy Metals ◽  
Contaminated Soils ◽  
Triticum Aestivum L ◽  
Soil Samples ◽  
Survey Study ◽  
Anthropogenic Source ◽  
Irrigation Canal ◽  
Aqua Regia ◽  
Metal Contents ◽  
Plant Grown

This study was conducted to evaluate the contamination and accumulation of heavy metals such as Cadmium (Cd) and Chromium (Cr) in soil and plant grown in contaminated soil. Orchard and relative non-orchard fields were chosen to carry out this study. For total and available metals, soil samples were collected equally from 24 different points of orchard and non-orchard field and were extracted with Mehlich-3 extracting solutions and aqua-regia. Wheat crops from orchard and non-orchard fields were analysed and collected with aqua regia for heavy metal contents. Irrigation water samples were also collected from fresh water irrigation canal (Lower Chenab) for analysis. Results indicated that average metal concentrations in soils of both orchard and non-orchard fields were Cadmium (Cd) 2.36 and 2.49 mg kg-1 and Chromium (Cr) 58.15 and 53.51 mg kg-1 respectively. Contribution of risk from Cd and Cr were significant in wheat (seeds) of orchard. In orchard field, the risk contribution from Cd and Cr were significant in crops seeds. The considerable load of toxic metals in fields revealed the anthropogenic source of pollution. Therefore, it is emphasize that the need of heavy metals monitoring in crops and soils is necessary.

Assessment of heavy metals in tobacco of cigarettes commonly sold in Ethiopia

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Heavy Metals ◽  
Trace Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Epidemiological Studies ◽  
Cigarette Tobacco ◽  
Absorption Spectrophotometry ◽  
Wet Digestion ◽  
Metal Contents ◽  
Cu And Zn ◽  
Significant Flux

A significant flux of heavy metals, among other toxins, reaches the lungs through smoking. This study reports Cd, Pb, Cu and Zn contents in tobacco of 11 brands of cigarette commonly sold in Ethiopia. The heavy metals were determined by atomic absorption spectrophotometry after wet digestion of cigarette tobacco using HNO3 and H2O2. The concentration of trace metals in the cigarettes ranged (mean) (μg/g), Cd: 1.3−7.6 (2.48±0.32), Pb: 0.50−12.50 (6.24±2.2), Cu: 2.89−25.35 (13.70±4.12) and Zn: 24.40−62.55 (36.22±7.50) while Ni was not detected in all the eleven brands of cigarettes. Comparable levels of trace metals were obtained in the tobacco of both imported and Ethiopian cigarettes. The average trace metal contents of cigarettes available in Ethiopia were Cd 1.82±0.39, Pb 4.23±0.97, Cu 10.2±3.1 and Zn 28.2±7.8 μg/cigarette and a person who smokes 20 cigarettes per day is estimated to increase his/her daily Cd, Pb, Cu and Zn retention by approximately 0.036, 0.085, 0.204, 0.564 mg/day, respectively. The results indicate that smoking and exposure to cigarette smoke is a serious problem to be taken into account when carrying out epidemiological studies on human exposure to trace metals.

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