scholarly journals Concentration and distribution of macrominerals in tissues of Mediterranean mussel Mytilus galloprovincialis exposed to Cd and Cd-mixtures

2021 ◽  
Vol 56 (2) ◽  
pp. 157-166
Author(s):  
José A. García-Navarro ◽  
Miguel A. Vera-Sánchez ◽  
Diego Romero
Keyword(s):  
Heavy Metal ◽  
Mytilus Galloprovincialis ◽  
Soft Tissues ◽  
Heavy Metal Contamination ◽  
Field Studies ◽  
Marine Ecosystems ◽  
Control Group ◽  
Inorganic Elements ◽  
Study Results ◽  
Mediterranean Mussel

Marine ecosystems are under great pressure due to heavy metals pollution, and mussels remain an important knowledge source in this regard. In this study, Mediterranean mussels (Mytilus galloprovincialis) were exposed for 7 days to Cd and three Cd-mixtures (Cd+Pb, Cd+Cu and Cd+Pb+Cu). The accumulation and tissue distribution of inorganic elements (Ca, K, Mg, Na, P and S, macrominerals) that are usually not taken into consideration in field studies on in bioassays were evaluated. Regarding concentration, the element which differed the most with respect to the control group was K, while Mg was the only one which showed no significant statistical difference with the control group. The group exposed to ternary mixture was the one in which there were more alterations in concentration and distribution of these macrominerals with respect to control, whereas in the group exposed to single Cd no significant differences in the concentration of these inorganic elements were found. The concentration and distribution of macrominerals in the compartments studied (digestive gland, gill and remaining soft tissues) is susceptible to the presence of Cd and heavy metal Cd-mixtures, with percentages of changes until 28.7%. Study results suggest that macrominerals composition in mussel tissues could be useful in studies of heavy metal contamination in marine ecosystems.

scholarly journals Heavy Metal Levels in Milk and Cheese Produced in the Kvemo Kartli Region, Georgia

Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2234
Author(s):  
Rami Al Al Sidawi ◽  
Giorgi Ghambashidze ◽  
Teo Urushadze ◽  
Angelika Ploeger
Keyword(s):  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Permissible Limit ◽  
Milk Samples ◽  
Permissible Limits ◽  
Study Results ◽  
Metal Levels ◽  
Permissible Levels ◽  
Cadmium Lead ◽  
The Eu

Milk and dairy products are among the most important food sectors in Georgia, and milk is considered one of the most essential foods in the human diet according to Georgian food culture. Kvemo Kartli is one of the major regions in Georgia for milk production. This region suffers from heavy metal contamination in soil and water because of the mining industry. This study was conducted to determine the concentrations of cadmium, lead, iron, zinc, copper, chromium, manganese, cobalt, nickel, selenium and molybdenum in milk and cheese and to evaluate whether the concentrations of these elements correspond to the permissible levels of toxic elements in milk and cheese for Georgia and the EU. In total, 195 milk samples and 25 cheese samples (16 from Imeruli cheese and nine from Sulguni cheese) were collected from nine different villages in the Kvemo Kartli region in Georgia: Chapala, Vanati, Bolnisi, Mtskneti, Sabereti, Ratevani, Khidiskuri, Kazreti, Kvemo Bolnisi. The determination of heavy metal in all samples was carried out by inductively coupled plasma-mass spectrometry. The research results show that the concentration of these elements in most milk samples is fairly constant for all villages and is less than the permissible levels, except for seven samples from the following villages: Kvemo Bolnisi, Bolnisi, Mitskineti and Ratawani, where the concentration of lead in the milk samples was higher than the permissible limits mentioned in the literature, ranging from 0.027 to 1003 mg L−1. As for copper, its concentration in milk in Sabereti and Vanati villages was above the permissible limits according to the EU limit, ranging from 0.42 to 1.28 mg L−1. For cheese samples, the concentration of cadmium, lead, copper, Co and Ni in the two types of cheese was less than the permissible limit according to the laws of Georgia. Finally, the heavy metal concentrations in Imeruli and Sulguni cheese for manganese (Mn), chromium (Cr), selenium (Se), molybdenum (Mo) zinc (Zn) and iron (Fe) were above the permissible limit. Thus, the study results showed that the consumption of milk does not pose a direct and serious threat to the health of consumers. As for the two types of cheese, future studies and continuous monitoring are necessary to assess the cheese content of trace elements and the risk of its consumption to the consumer.

scholarly journals An Assessment of the Bivalve Perna viridis, as an Indicator of Heavy Metal Contamination in Paradise Point of Karachi, Pakistan

2016 ◽  
Vol 59 (3) ◽  
pp. 164-171
Author(s):  
Rashida Qari ◽  
Olufemi Ajiboye ◽  
Saima Imran ◽  
Abdul Rahim Afridi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Soft Tissues ◽  
Heavy Metal Contamination ◽  
Human Consumption ◽  
Perna Viridis ◽  
High Accumulation ◽  
Accumulation Of Metals ◽  
Mn Concentrations

The edible bivalves Perna viridis (green mussel), (n = 100) were analysed for their total Hg,Pb, Cu, Ni, Zn, Co, Fe, Cr, Cd, and Mn concentrations to indicate heavy metal contamination in ParadisePoint of Karachi coast using atomic absorption spectrophotometer. There are large seasonal variations inthe metal concentrations of Mn (0.025-0.67 µg/g), Fe (0.055-7.740 µg/g), Ni (0.004-0.52 µg/g), Hg (0.0001-0.004 µg/g), Zn (0.04-3.32 µg/g), Cu (0.008-1.66 µg/g), Pb (0.022-2.43 µg/g), Co (0.01-0.044 µg/g), Cd(0.04-0.88 µg/g) and Cr (0.13-1.20 µg/g) recorded in bodies/soft tissues of P. viridis obtained in the samplesof the year 1993 and 2012 at the Paradise Point of Karachi coast. The results of heavy metals are in thefollowing descending order of concentration in the samples collected in the year 1993: Fe>Cr>Zn>Mn>Pb>Cd>Cu>Ni>Co>Hg, while Fe>Zn>Pb>Cu>Cr>Cd>Mn>Ni>Co>Hg order was recorded in samplescollected in the year 2012. The high accumulation of metals was found mostly in the samples collectedin the year 2012 when compared with the samples of the year 1993. This is an indication that the areaunder study showed signs of being exposed to significant levels of heavy metal pollution due to directdischarge of industrial and domestic wastes along the coast. The concentrations of these heavy metals werelower than the permissible limits for human consumption. However, if this pollution persists, it can proveto be very detrimental in future.

scholarly journals Heavy metal remediation technologies in Latvia: possible applications and preliminary case study results / Technologie remediacji obszarów zanieczyszczonych metalami ciężkimi na Łotwie: możliwe zastosowania i wstępne wyniki badań

2012 ◽  
Vol 19 (4) ◽  
pp. 533-547
Author(s):  
Juris Burlakovs ◽  
Magnuss Vircavs
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Anthropogenic Activities ◽  
Residential Areas ◽  
Territorial Planning ◽  
Heavy Metal Remediation ◽  
Study Results ◽  
Polluted Sites

Abstract Environmental contamination with heavy metals as a result of anthropogenic activities is not a recent phenomenon. Contaminated sites with heavy metals can be found in functioning as well as abandoned industrial (brownfield) territories, landfills, residential areas with historical contamination, road sides and rarely in polluted sites by natural activities. Pollution data on its amount and concentrations is known from historical studies and monitoring nowadays, but it should be periodically updated for the use of territorial planning or in case of a change of the land use. A special attention should be paid to heavy metal contamination, because in many cases this contamination is most problematic for remediation. 242 territories now are numbered as contaminated and fixed in the National Register of contaminated territories - at least 56 of them are known as contaminated with heavy metals in different amount and concentration. Legislative aspects are discussed as well as an overview of soil and groundwater contamination research and the possible remediation technologies in Latvia are given. Two case studies are described in order to give the inside look in pre-investigations done before potential start of heavy metal remediation works.

scholarly journals Soft Tissue Response to Titanium Abutments with Different Surface Treatment: Preliminary Histologic Report of a Randomized Controlled Trial

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Luigi Canullo ◽  
Jan Friedrich Dehner ◽  
David Penarrocha ◽  
Vittorio Checchi ◽  
Annalisa Mazzoni ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Controlled Trial ◽  
Tissue Response ◽  
Polymorphonuclear Neutrophil ◽  
Control Group ◽  
Neutrophil Granulocytes ◽  
Study Results ◽  
Significant Difference ◽  
Soft Tissue Response ◽  
Cleaning Methods

The aim of this preliminary prospective RCT was to histologically evaluate peri-implant soft tissues around titanium abutments treated using different cleaning methods. Sixteen patients were randomized into three groups: laboratory customized abutments underwent Plasma of Argon treatment (Plasma Group), laboratory customized abutments underwent cleaning by steam (Steam Group), and abutments were used as they came from industry (Control Group). Seven days after the second surgery, soft tissues around abutments were harvested. Samples were histologically analyzed. Soft tissues surrounding Plasma Group abutments predominantly showed diffuse chronic infiltrate, almost no acute infiltrate, with presence of few polymorphonuclear neutrophil granulocytes, and a diffuse presence of collagenization bands. Similarly, in Steam Group, the histological analysis showed a high variability of inflammatory expression factors. Tissues harvested from Control Group showed presence of few neutrophil granulocytes, moderate presence of lymphocytes, and diffuse collagenization bands in some sections, while they showed absence of acute infiltrate in 40% of sections. However, no statistical difference was found among the tested groups for each parameter (p>0.05). Within the limit of the present study, results showed no statistically significant difference concerning inflammation and healing tendency between test and control groups.

scholarly journals Determination of Heavy Metal Contaminations of Lead and Cadmium in Selected Lipstick Products Sold in Padang City Using Atomic Absorption Spectrophotometry

2019 ◽  
Vol 2 (1) ◽  
pp. 13-18
Author(s):  
Ridho Asra ◽  
Rusdi ◽  
Robi Budi Yandra ◽  
Nessa
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Atomic Absorption Spectrophotometry ◽  
National Agency ◽  
Absorption Spectrophotometry ◽  
Lead And Cadmium ◽  
Study Results ◽  
The Republic

The study was aimed at assessing the levels of some toxic metals of lead and cadmium in selected lipstick products sold in Padang city. Four brands of lipsticks were taken which were BL, NK, PS and WD. The lipsticks were grinded and analyzed for heavy metals (lead and cadmium) using atomic absorption spectrophotometry. Each sample was destructed by nitric acid and perchloric acid (3:1). Destructed samples were added with sodium hydroxide to liberate ammonia and filtered into a 25 mL volumetric flask. The concentrations of heavy metal were measured by using atomic absorption spectrophotometry. The results showed that lead heavy metal contamination was not detected. Whereas, the heavy metal contamination of cadmium in lipstick brands BL, NK, PS and WD were 0.2287, 0.2000, 0.1796 and 0.1220 mg/kg, respectively. The study results showed that all metal contaminations of lead and cadmium were not over the limit which were regulated by National Agency of Drug and Food Control of the Republic of Indonesia.

scholarly journals The Influence of Physiotherapy on Neck Disability and Headache among Dental Professionals

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Aušra Mereckaitė ◽  
Gražina Krutulytė
Keyword(s):  
Neck Pain ◽  
Soft Tissues ◽  
International Headache Society ◽  
Neck Disability Index ◽  
Pain Scale ◽  
Control Group ◽  
Physiotherapy Program ◽  
Study Results ◽  
Neck Disability ◽  
Dental Professionals

This study aim was to identify the impacts of physiotherapy program on reducing neck disability and headache among dental professionals. According to the Neck Disability Index and criteria, set by the International Headache Society, 24 dentists, with neck pain, were selected. To evaluate pain intensity we used visual analog pain scale (VAS). 24 individuals (age 23–39 yr.) were split into 2 groups of 12 people. The first group (age – 27.83 ± 5.0 yr.) had a six – week combined physiotherapy program. The second group was the control group (age 26.17 ± 2.4 yr.) for who physiotherapy was not applied. Physiotherapy program took 45–60 min, twice a week, and consisted of: • soft tissues mobilization techniques; • cervical and thoracic spine mobilization; • active / passive stretching of neck muscles; • exercises which increase neck range of motion; • exercises which increase endurance and strength of upper back muscles. The subjects were assessed before yhe research, 6 and 12 weeks later. The study results showed, that after a six-week physiotherapy program the neck disability index significantly (p < 0.05) decreased. No neck disability index changes were reported in the control group. Daily activity performance significantly improved (p < 0.05), reading and sleeping quality increased and the subjects could lift weights significantly easier. We found a tendency (p < 0.1) that after six weeks of physiotherapy headaches decreased. The neck disability index of the controls did not significantly improve. Six weeks of physiotherapy program significantly reduces neck pain, headache and improves neck disability index in all domains.Keywords: physiotherapy, neck pain, headache, the neck disability index.

scholarly journals Investigate workers' health in the western industrial region, Mosul, Iraq

Bionatura ◽  
2021 ◽  
Vol 3 (3) ◽  
pp. 1983-1985
Author(s):  
Salim Rabeea Znad ◽  
Mazin Nazar Fadhel ◽  
Ayça Erdem Ünşar
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Direct Contact ◽  
Heavy Metal Contamination ◽  
Control Group ◽  
Industrial Region ◽  
Industrial Areas ◽  
Northern Iraq ◽  
The Impact

The current study aims to determine the level of heavy metal contamination in the Western Industrial Region of Mosul City, northern Iraq. Heavy metals such as( Pb ،Co ،Hg ) are measured In the blood serum of 40 workers in the main industrial areas of Mosul City. It was compared with the control group of (40) people from Mosul university, Where is Far away from the industrial areas and all activities. The results indicated a highly significant increase of P<0.001 in the serum of the workers in the industrial areas compared with the control group. The study investigates the impact of heavy metals on the workers' health in the industrial areas who are in direct contact with them.

scholarly journals Biochemical Composition and Heavy Metal Content in the Mussels of Kadiyapattinam, Kanyakumari distrct, South West Coast of India

2018 ◽  
Vol 4 (2) ◽  
pp. 244-258
Author(s):  
Immaculate Jeyasanta K ◽  
Sheeba Wilson ◽  
Narmatha Sathish ◽  
Jamila Patterson
Keyword(s):  
Heavy Metal ◽  
Biochemical Composition ◽  
Metal Contamination ◽  
Soft Tissues ◽  
Heavy Metal Contamination ◽  
Rich Source ◽  
The Other ◽  
Human Consumption ◽  
Perna Viridis ◽  
Perna Perna

Samples of the green mussel, Perna viridis, the brown mussel Perna perna and the parrot mussel were collected from Kadiyapattinam of Kanyakumari coast and their biochemical composition and the levels of heavy metal contamination were analyzed. The results of this study showed that the biochemical composition of the mussels did not very much. The specimens of all the three species of mussels were found to be good aquatic invertebrates for human consumption. P. viridis contained higher proportion of protein than Perna perna and the parrot mussel. Perna perna and the parrot mussel contained more lipid, ash, carbohydrate, and fibre; and their caloric values were also more than that of Perna viridis. Perna perna had the highest moisture content (78.21%) followed by the parrotmussel (19.47%) and Perna viridis (20.30%). Concentrations of the heavy metals (Cd, Cu, Pb, Cr, As, Ni and Se) in the edible portions of the samples were within the values recommended by the WHO. Mercury was not detected and so these mussels are safe for the consumers. The order of concentrations of minerals found in the mussel samples was: K > Na > P > Ca > Mg > Fe > Zn > Mn. Potassium content was more than the other elements. It was evident from the study that in the soft tissue of all Perna species the concentration of essential minerals was higher than the nonessential metals. Kadiyapattinam mussels are a rich source not only of protein but also of all the other micro and macro minerals. The soft tissues of all the mussels had low levels of heavy metal concentration, and this indicates a comparatively lower heavy metal contamination of Kadiyapattinam coast. Mussels are also a rich source of nutritional components and could be used as human diet in place of other fish so as to reduce the pressure on sea foods.

scholarly journals Potention of Active Charcoal from Musa Paradisiaca and Manihot Utilissima Shell in Degrading River Contamination

2018 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Nurlailah Nurlailah ◽  
Anny Thuraidah ◽  
Yayuk Kustiningsih
Keyword(s):  
Water Quality ◽  
Heavy Metal ◽  
River Water ◽  
Heavy Metal Contamination ◽  
Active Charcoal ◽  
Optimum Dose ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Musa Paradisiaca

River water is one of type water surface which is a lot of finding in South Kalimantan. Generally, this water used by the citizen for cooking and bathing. But along with era growth, this river becomes as disposal of various industrial waste. The contamination of heavy metal like Fe, Mn, Pb, Cd, and turbidity enhance progressively and degrade the water quality. Some natural substance which can be used to improve river water quality is active charcoal from Musa paradisiaca and Manihot utilissima shell which is easy to get. Target research is determined to find optimum dose of active charcoal from Musa paradisiaca and Manihot utilissima shell that capable to degrade heavy metal contamination and turbidity in water river. It used experimentally with pretest and post-test with control group design. A result of research showed the optimum dose of active charcoal Musa paradisiaca shell was 15 gram , it could absorb Pb 28,8% and Mn 24,6%, but 10 gram can degrade turbidity until 83,8 %, while the optimum dose of Manihot utilissima shell to 25,4% Pb and degraded 77,5% of turbidity was 15 gram. Statistical test result with Kruskal Wallis got the p-value less than 0,05 it meant there was a difference between the treatment of active charcoal from Musa paradisiaca and Manihot utilissima shell in degrading the contamination. A conclusion is those active charcoal having a potential to enhance the water river quality. Suggested to use another activator to the potential like stirring, time of contact and the different mass.

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