scholarly journals Transfer of Some Toxic Metals from Soil to Honey Depending on Bee Habitat Conditions

2020 ◽  
Vol 24 (1) ◽  
pp. 49-59
Author(s):  
Monika Tomczyk ◽  
Grzegorz Zaguła ◽  
Czesław Puchalski ◽  
Małgorzata Dżugan
Keyword(s):  
Heavy Metals ◽  
Toxic Metals ◽  
Soil Acidity ◽  
Background Level ◽  
Metal Mobility ◽  
Human Consumption ◽  
Habitat Conditions ◽  
Natural Background ◽  
Heavy Metal Mobility ◽  
The Impact

AbstractThe transfer of toxic metals from soil to honey was studied based on two different areas of the Podkarpackie region located in the south-east part of Poland: U-urbanized and E-ecologically pure. The metal content was determined using the ICP-OES method with prior microwave mineralization of the soil, plant (goldenrod, dandelion, rapeseed, tilia and fir), bee bodies and honey samples collected from 10 sampling points (U-5 and E-5). The impact of soil pH on heavy metal mobility was also evaluated. It was found that Podkarpackie soils are less contaminated with heavy metals as compared to other regions of Poland and only in the case of cadmium an enhancement of the natural background level was observed. The migration of heavy metals, especially cadmium, in the soil-plant-bee-honey food chain was accelerated by soil acidity (p<0.05). The influence of human activity (region development) on heavy metals concentrations was not significant (p>0.05). Based on bioaccumulation factors, goldenrod and dandelion plants were confirmed as cadmium accumulators. It was also confirmed that the bodies of bees act as an effective barrier to the migration of heavy metals from the environment to honey, due to this, honey is free from these metals and safe for human consumption.

scholarly journals Content of heavy metals in Haplic Chernozem under conditions of agrogenesis

2020 ◽  
Vol 169 ◽  
pp. 01024
Author(s):  
Anna Medvedeva ◽  
Olga Buryukova ◽  
Alexey Kucherenko ◽  
Yaroslav Ilchenko ◽  
Victor Chaplygin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Winter Wheat ◽  
Total Content ◽  
Background Level ◽  
Resource Saving ◽  
Agricultural Technologies ◽  
Long Term Study ◽  
Mobile Forms ◽  
Zn And Cu In ◽  
The Impact

The paper presents the results of a long-term study on the content and distribution of heavy metals in Haplic Chernozem of agrocenoses in southern zone of Rostov Region. The impact of various agricultural technologies traditional (using moldboard ploughing) and resource-saving (minimum and No-till) on accumulation and mobility of Pb, Zn, Cu in Haplic Chernozem in winter wheat cultivation is considered. The total content of Pb, Zn, Cu in the winter wheat areas corresponds to the background level and does not exceed permissible concentrations. Low mobility of elements (Pb 2.0-3.0%; Zn and Cu up to 1.0% as a percentage of their total forms) is a regional soil feature. In addition, the low availability of Zn and Cu in soils is due to their removal with the crops in the absence of micronutrient fertilizer replenishment. The significant role of soil organic matter in the accumulation of both total and mobile forms of heavy metals in soil has been confirmed. The intensity of the cultivation methods used has a significant effect on the total content of Zn, Cu and on the mobility of Pb, Zn, Cu in Haplic Chernozem.

scholarly journals Mobility of lead, zinc and cadmium in alluvial soils heavily polluted by smelting industry

2011 ◽  
Vol 51 (No, 7) ◽  
pp. 316-321 ◽  
Author(s):  
A. Vaněk ◽  
L. Borůvka ◽  
O. Drábek ◽  
M. Mihaljevič ◽  
M. Komárek
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Czech Republic ◽  
Extraction Procedure ◽  
Metal Mobility ◽  
Alluvial Soils ◽  
Mobility Factor ◽  
Heavy Metal Mobility ◽  
Profile Distribution ◽  
Lead Zinc

In order to determine the mobility of Pb, Zn and Cd in soils from the Př&iacute;bram region (Czech Republic) heavily contaminated by metallurgy, two profiles of alluvial soils were closely studied. Total contents of heavy metals were determined after digestion with a mixture of HF and HClO<sub>4</sub>. Heavy metal mobility was assessed using the mobility factor (MF) that represents the proportion of heavy metals present in the exchangeable and carbonate bound fraction based on the Tessier&rsquo;s sequential extraction procedure. The MF ranged from 2 to 46% for lead, 19 to 62% for zinc and 61 to 94% for cadmium. The profile distribution of zinc and cadmium showed a variable development with depth, which is caused by high amounts of these metals present in labile forms. The profile distribution of lead (the least mobile metal) is characterized by a gradual decrease with depth. The results indicate a higher contamination of the soil profile situated 2.5 km away from the smelter in comparison with the profile in its close vicinity. This fact confirms the existence of extreme fluvial contamination.

scholarly journals Environmental studies in the Qaumarujuk and Agfardlikavsâ fjords, Umanak district, central West Greenland

1974 ◽  
Vol 65 ◽  
pp. 29-33
Author(s):  
J Bondam ◽  
G Asmund
Keyword(s):  
Heavy Metals ◽  
Natural Environment ◽  
Industrial Pollution ◽  
Local Population ◽  
Background Level ◽  
Toxic Effects ◽  
Natural Background ◽  
Mining Operations ◽  
Waste Products ◽  
West Greenland

Early in 1972 Greenex NS obtained a license for mining operations of the zinc-Iead occurrence at Marmorilik in the Umanak district of central West Greenland. Tailings from the flotation plant, totalling approximately 450 000 tons/year, are dumped in the fjord Agfardlikavsa (fig. 4). Understandably the local population demanded assurance that no toxic effects would harm their main source of living - fishery of prawn and fish, and prior to mining the Ministry for Greenland set stringent limits for the levels of waste products permissible. In order to gain some knowledge of the natural background level of, in particular, heavy metals in an area so far unaffected by mining operations or industrial pollution, it was decided to investigate the natural environment before mining operations started in the autumn of 1973.

scholarly journals THE IMPACT OF INCREASED NATURAL BACKGROUND OF SOIL ON THE ANIMAL PRODUCTION OF RUMINANTS IN THE REGION LIVNO

2009 ◽  
Vol 2 (2) ◽  
pp. 49-58
Author(s):  
Nedžad Gradaščević ◽  
Lejla Saračević ◽  
Davorin Samek ◽  
Anto Mihalj
Keyword(s):  
Annual Effective Dose ◽  
Absorbed Dose ◽  
Human Consumption ◽  
Natural Background ◽  
Absorbed Dose Rate ◽  
Animal Products ◽  
Average Value ◽  
Animal Product ◽  
Coal Layer ◽  
The Impact

In this paper, the impact of increased levels of uranium and radium in soil on the levels of activity and radiation-hygienic validity of animal products of ruminants was investigated.Region around Livno town is placed on coal layer with the in creased levels of uranium and radium compared with other coals used in Bosnia and Herzegovina. As a result of mixing between coal matrix and soil, in creased value of average absorbed dose rate at 1 m above the ground (144 nGy h-1) was measured. The highest average value of 238U and 226Ra in the samples of animal products of ruminants was measured in the samples of sheep cheese (0.070 Bq kg-1 for 238U and 0.207 Bq kg-1 for 226Ra). The levels of these two radionuclides in the rest of animal product of ruminants were aproximatelly similar and ranged 0.016–0.046 Bq kg-1 for 238U and 0.028–0.080 Bq kg-1 for 226Ra. Levels of 40K were in the range of average values for animal products (31.2–86.4 Bq kg-1). Calculated annual effective dose by ingestion of the animal products of ruminants were approximatelly 0.064 mSv with the highest dose contribution of 40K (96.4%). On the base of obtained results, animal products of ruminants produced in observed region, can be considered as valid for human consumption from radiation-hygienic aspect.

The use of flux-corer experiments in the determination of heavy metal re-distribution in and of potential leaching from the sediments

1998 ◽  
Vol 37 (6-7) ◽  
pp. 283-290 ◽  
Author(s):  
R. Van Ryssen ◽  
M. Alam ◽  
L. Goeyens ◽  
W. Baeyens
Keyword(s):  
Heavy Metal ◽  
Water Policy ◽  
Sediment Cores ◽  
Metal Mobility ◽  
Overlying Water ◽  
Heavy Metal Mobility ◽  
Zn And Cu In ◽  
Concentration Changes ◽  
The Impact

Metal dynamics between sediments, interstitial water and overlying water are particularly complex. The movement of metals, their availability, and possible toxicity are influenced by various chemical and physical reactions and factors such as oxygen/redox gradients, pH, grain size, etc. To study the impact of oxygen on the release from and the re-distribution of Cd, Pb, Zn and Cu in sediments, flux-corer experiments have been optimised and performed. The flux experiment was carried out using 3 identical sediment cores. The first (control) sediment core was completely characterised before, the two other cores after the experiment. Pore water extractions and sequential extractions were performed on 2 cm depth intervals throughout the 20 cm long sediment cores. In the flux experiment, the sediment cores were exposed to a small volume of overlying water, which was continuously renewed. The change of trace metal mobility was assessed by following concentration-changes in the outflow. It has been found by the use of the flux-corer experiment, that the Cd, Pb, Zn and Cu concentrations in the outflow are at least 3-6 times higher during oxic conditions. Flux-corer experiments can be useful tools to facilitate the study of the change of heavy metal mobility and distribution in the sediment induced by the change in surface water policy.

Heavy metals speciation with prediction model for heavy metal mobility and risk assessment in mine-affected soils

2020 ◽  
Author(s):  
Jaeyoung Choi ◽  
Yongtae Ahn
Keyword(s):  
Heavy Metals ◽  
Chemical Speciation ◽  
Correlation Coefficients ◽  
Carcinogenic Risk ◽  
Metal Mobility ◽  
Mobility Prediction ◽  
Extraction Techniques ◽  
Heavy Metal Mobility ◽  
Local Residents ◽  
Total Concentrations

&lt;p&gt;Heavy metals from mines affect soil and groundwater, cause aand severely impact on the health of local residents. The soil samples were characterized the for distribution, and by the chemical speciation method , and then estimated the human health risks of the two mine-affected soils after stabilization were estimated. Two extraction techniques (Tessier and Wenzel methods) were applied to fractionate metals, such as arsenic (As) and zinc (Zn), to quantify the chemical status of metals in the soils. The mobility of As and Zn was predicted using ASTM test and sequential extraction (Tessier and Wenzel) methods results. The correlation coefficients of As and Zn mobility prediction using Tessier and Wenzel Fraction 1 were (0.920 and 0.815), respectively. Sum The of fractionsum of fractions (F1+F2+F3) showed the highest correlation coefficients value and F value for mobility prediction of both As and Zn. The hazardous indices (HI) for non-carcinogenic risk and carcinogenic risk (CR) to humans were evaluated according to the pseudo-total concentrations of metal in soils. The CR values of carcinogenic for As were within the ranges from 1.38 &amp;#215; 10&lt;sup&gt;-4&lt;/sup&gt; to 1.25 &amp;#215; 10&lt;sup&gt;-3&lt;/sup&gt; and 3.71 &amp;#215; 10&lt;sup&gt;-4&lt;/sup&gt; to 3.35 &amp;#215; 10&lt;sup&gt;-3&lt;/sup&gt; for both Young Dong (YD) and Dea San (DS), respectively. The HI for non-carcinogenic risk was highest for As in the YD (2.77) and DS (7.46) soils, which covered approximately 96 and 84% of HI, respectively. In summary, the contribution of As to risk from heavy metals was dominant.&lt;/p&gt;

IMPACTS OF URBAN DEVELOPMENT ON AN OXBOW LAKE IN THE AMAZON REGION: LANDSCAPE AND GEOCHEMICAL EVIDENCE

2020 ◽  
Vol 7 (2020) (2) ◽  
pp. 1-12
Author(s):  
Marcondes Costa ◽  
◽  
Luiz Carvalho ◽  
Patricia Pereira ◽  
Glayce Valente ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Urban Development ◽  
Amazon Basin ◽  
Urban Expansion ◽  
Oxbow Lake ◽  
Human Consumption ◽  
Lake Area ◽  
Fish Farms ◽  
Muddy Water ◽  
The Impact

Amapá Lake is an abandoned meander of the Acre River, the margins of which are occupied by agricultural settlements, smallholdings, fish farms and dirt roads. This paper discusses the impact of this occupation on the lake area based on field data and physical-chemical and elementary chemical analyses of the lake and river waters. The strong physical changes in the lake landscape have impacted the quality of its water. During the dry season (low water), when the temperature of the water reaches 30-34ºC, there is a proliferation of green algae and in the area affected by fish farms and smallholdings there is an increase in total dissolved solids, electrical conductivity, and transparency, while turbidity and total suspended solids become more concentrated during the flood season. The anthropogenic impact is also indicated by the higher levels of ammonia, chlorides, bromides, and phosphates in the water. However, the concentrations of dissolved metal ions are all consistent with those found in the Acre River, and other muddy water lakes and rivers in the Amazon basin, reflecting the mineralogy of the suspended material. The concentrations of most heavy metals (Pb, Cu, (Zn), Cd and Hg) are below 0.01 mg L-1, while that of Hg (0.006 mg L-1) is above the recommended limits for human consumption. Overall, the results of the study indicate that Amapá Lake is suffering ongoing impacts (physical and chemical) from urban development, which are mitigated by the periodic flooding of the river. Key words: Urban expansion, Environmental impacts, Waters, Heavy metals.

Impact of heavy metals on the food web in the Mediterranean lagoon, Lake Burullus, Egypt

2020 ◽  
Vol 49 (3) ◽  
pp. 215-229
Author(s):  
Mahmoud H. Hegab ◽  
Nasr M. Ahmed ◽  
Shadia M. Kadry ◽  
Radwa A. ElSayed ◽  
Mohamed E. Goher
Keyword(s):  
Heavy Metals ◽  
Lake Water ◽  
Dry Weight ◽  
Human Consumption ◽  
Fish Muscles ◽  
Fish Samples ◽  
Accumulation Of Metals ◽  
Lake Burullus ◽  
The Impact ◽  
The Relationship

AbstractResearch on the impact of heavy metals and their accumulation in ecosystem elements of Lake Burullus is still scarce. Therefore, this study focuses on the relationship between the levels of heavy metals in the lake water, plankton communities and Nile tilapia (Oreochromis niloticus). The mean annual concentrations of Fe, Zn, Cu, Mn, Pb and Cd in water and fish samples were 527.8, 366.7, 162.6, 137.3, 119.8 and 3.6 μg l−1, and 70.8, 43.6, 8.05, 1.2, 0.14 and 0.045 μg g−1 dry weight (d.w.), respectively. The study demonstrated the relationship between the accumulation of metals in fish muscles and their levels in the lake water (p < 0.05; r = 0.7–0.9), with the metal content in O. niloticus muscles being mostly below the permissible limits. The obtained results showed that the levels of the metals in the lake water are not correlated with phytoplankton and zooplankton, and their groups, except copper and zinc, are negatively correlated with phytoplankton (r = −0.45 and −0.58, respectively). The study concluded that the concentrations of the analyzed metals in Lake Burullus did not reach the effective levels that would have a significant impact on the distribution of phytoplankton and zooplankton, or a hazardous effect on O. niloticus and its safety for human consumption.

scholarly journals Urban Wastewater Management in Focus of Heavy Metal Contamination

2018 ◽  
Vol 6 (1) ◽  
pp. 103-113
Author(s):  
Marton Czikkely ◽  
Csaba Fogarassy
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Metal Mobility ◽  
Biogenic Element ◽  
Wastewater Management ◽  
Urban Wastewater ◽  
Limit Value ◽  
Low Concentrations ◽  
Heavy Metal Mobility

Abstract In our study, we focused on urban wastewater management, with special regard to the problems caused by heavy metal contaminations. Heavy metals function at low concentrations as a biogenic element, but at the same time in higher amounts (especially above the limit value) are considered as pollutants. We determined the basic wastewater treatment problem: which is the main problem of heavy metal contaminated urban wastewaters and how could eliminate heavy metals. We focused on wastewater origin heavy metal mobility in environment and effect (risk) on human health. In the following, we undertook to analyse urban wastewater in this direction.

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