scholarly journals Effect of aquaculture-agriculture sewage on the relation between iron and other trace elements content in Venus clam

2020 ◽  
Vol 2 (4) ◽  
pp. Manuscript
Author(s):  
Héctor Hugo Vargas-González ◽  
Jose Alfredo Arreola Lizárraga ◽  
Lia Mendez-Rodriguez ◽  
Ramon Gaxiola Robles ◽  
Jaqueline Garcia Hernández ◽  
...  

In coastal systems, concentrations of trace metals in filter feeders such as shellfish may be affected by anthropogenic activities, including agriculture and aquaculture. Shellfish are a good source of iron, but can also be a potential source of toxic elements, such as cadmium and lead, when consumed by humans. The objective of this study was to determine the differences in iron, zinc, copper, manganese, nickel, lead, and cadmium levels in tissue of the clam Chione gnidia collected from a coastal lagoon influenced by agriculture (Lobos) or aquaculture (Tobari), using an atomic absorption spectrophotometer. The relationship of iron with all other trace elements in these organisms was explored using a generalized linear model (GLM).  Iron, copper, manganese, and cadmium concentrations were significantly higher in shellfish collected from the coastal lagoon influenced by agriculture, while nickel was significantly higher in shellfish from the lagoon influenced by aquaculture. In these shellfish, cadmium and lead levels were the factors limiting the weekly intake of clam flesh. The GLM model explained 59% of the iron concentration in the Venus clam, suggesting that this element is directly related to zinc and manganese levels, but inversely related to cadmium content in shellfish.

2004 ◽  
Vol 58 (3-4) ◽  
pp. 335-342
Author(s):  
M.E. Or ◽  
A. Kayar ◽  
A.R. Kiziler ◽  
C. Parkan ◽  
R. Gonul ◽  
...  

This study realised in Trakya, a part of Marmara Region which is one of the seven different regions in Turkey, is aimed to detect the levels of trace elements as copper, iron, zinc and cadmium and lead in the organism in order to obtain more efficient economical results and healthier sheep breeds. At the beginning, Trakya Region was divided into 5 different districts and 30-50 sheep were chosen from each district and a total of 200 sheep were used in this study. Serum analyses showed a few decreases in the iron levels in the 2nd and 4th districts and the lowest zinc level was found in the 1st district. While the lowest copper level existed in the 3rd district, the highest lead level in the 2nd district, and finally the highest cadmium level was in the 5th district. As a result, we found that it is necessary to add these trace elements in the diet of the animals and considerable attachments of trace elements with lead and cadmium in order to apply an efficient prophylactic and therapeutic program. Also, the necessity of a similar study for the water, plant and soil samples in the region and the detection of correlation between them are revealed.


2016 ◽  
Vol 23 (03) ◽  
pp. 274-278
Author(s):  
Jahangir Sultan ◽  
Shafqat Husnain Khan ◽  
Fatima Rashid

Objectives: The objective of this study was to compare the level of traceelements Zinc, Cadmium and lead in seminal plasma and serum of infertile men to the fertileones. Period: June 2014 to August 2015. Setting: Pathology Department of Continental MedicalLahore, attached with Ch. Rehmat Ali Memorial Trust teaching Hospital Methods: A total of 400samples of workers working in different factories for a period of 5 or more years were collected.Out of theses 80 were azoospermic. The relationship of trace elements in serum and seminalplasma of infertile men was compared with the normospermic individual controls. Results: Theconcentration of trace elements Pb and Cd was higher in seminal plasma and serum of infertileindividuals while Zn level was lower. So it is suggested that high levels of Pb and Cd may affectthe fertility and Zn is a crucial element for sperms and fertility in men.


2005 ◽  
Vol 10 (1) ◽  
Author(s):  
I.O. BUTURE ◽  
W.S. MARÇAL

Foi realizada uma investigação em misturas minerais, foi realizada uma pesquisa quantificando os elementos chumbo e cádmio em diferentes formulações, comercializadas no estado do Paraná. Os metais pesados foram determinados pela técnica de espectrofotometria de absorção atômica por plasma de indução acoplada. Considerando como parâmetro de comparação às referências do National Research Council (1996) e Association of American Feed Control Official Incorporated (2001), em 30 diferentes marcas analisadas, 21 marcas apresentaram níveis de chumbo inorgânico superiores ao limite máximo aceitável que é de 30 ppm. Em todas as amostras o nível de cádmio encontrado superou o limite de 0,5 ppm que é o valor máximo aceitável. Os resultados demonstraram a urgente necessidade de monitoramento junto aos fabricantes e/ou revendedores, pois algumas misturas minerais podem ser eminentemente perigosas, possibilitando efeitos cumulativos tóxicos de chumbo e cádmio inorgânico em bovinos. Values of lead and cadmium in mineral supplements for cattle commercialized in Paraná State Abstract An investigation of mineral mixtures was carried out by quantifying cadmium and lead levels found in different formulas commercialized in the Paraná State. These heavy metals were assayed by the espectrofotometric technique of atomic absorption by plasma of coupled induction. Taking into consideration international parameters of reference, 21 out of 30 analyzed brands displayed levels of inorganic lead higher than the maximum acceptable limit, which is 30ppm. However, in all tested samples the cadmium levels were higher than the maximum acceptable limit of 0.05 ppm. The results indicated an urgent necessity for manufacturer and the seller monitoring, since some of the mineral mixtures might be extremely dangerous and may cause cumulative toxic effects of lead and inorganic cadmium in cattle.


2020 ◽  
Vol 62 (4) ◽  
pp. 140-143
Author(s):  
Svetlana V. Zhitar ◽  
◽  
Natalia N. Yasсhenko ◽  
Anatoly N. Lyschikov ◽  
Elena G. Zinovieva ◽  
...  

This paper presents the results of quantitative determination of cadmium and lead in milk, the quality of which is regulated by the Federal Law "Technical Regulations for Milk and Dairy Products" No. 88-FL of 12.06.2008, which indicates permissible levels of toxic substances in milk and basic dairy products. Cadmium and lead, as well as their compounds, are highly toxic substances of cumulative action and pose a serious danger to human and animal health, which makes regular monitoring of the content of these heavy metals in food, in particular milk, relevant. Eight samples of milk sold in the territory of the Chuvash Republic were selected as subjects of the study. Among them are six samples from popular shops of Cheboksara (trademarks “Just”, “Fresh tomorrow”, “From Krasuli”) and two samples of raw cow milk of private farms of Yadrin district (village of Grand Sundyr and village of Persirlana). The analysis of the crude, pasteurized and ultra heat-treated milk of various producers on the content of lead and cadmium at their joint presence was carried out by methods of an inversion voltamperometriya (GOST P 51301-99) and atomic and absorbing spectrometry (MU 01-19/47-11-92 “Methodical instructions by atomic and absorbing methods of definition of toxic elements in foodstuff”) and also in accordance with GOST 26932-96 “By raw materials and foodstuff. Lead Determination Methods” and GOST 26933-86 “Raw Materials and Food Products. Cadmium definition methods”. The minimum lead and cadmium content is found in “Just” brand milk samples of 0.0052±0.0016 and 0.0011±0.0013 mg/kg, respectively. The maximum lead content is found in samples of raw milk of Yadrin district (0.0262±0.0017 mg/kg), and cadmium – in milk of the manufacturer of the trademark “Just” from factory “Semisovsky” (0.0049±0.0007 mg/kg). It has been found that all the samples studied contain a very small amount of heavy metals, which does not exceed the MPC value, which makes it possible to highly assess the quality of milk and dairy products sold in Chuvashia.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
S. A. Montcho ◽  
K. Koudouvo ◽  
A. P. E. Yehouenou ◽  
P. Guedenon ◽  
L. Koumolou ◽  
...  

This study carried out an assessment of sanitary risks connected to the consumption ofSenna rotundifoliaLinn. contaminated with lead and cadmium. This plant was collected and analyzed by atomic absorption spectrophotometry. The results revealed a contamination of plants from markets of Dantokpa, Vossa, and Godomey with heavy metals.Sennafrom Vossa was higher in cadmium and lead levels (Pb: 2.733 mg/kg ± 0.356 mg/kg; Cd: 0.58 mg/kg ± 0.044 mg/kg) compared to the two other places (Pb: 1.825 mg/kg ± 0.133 mg/kg, Cd: 0.062 mg/kg ± 0.015 mg/kg and Pb: 1.902 mg/kg ± 0.265 mg/kg, Cd: 0.328 mg/kg ± 0.024 mg/kg), respectively, for Dantokpa and Godomey. In terms of risk assessment through the consumption ofSenna, the values recorded for lead were nine times higher with children and six times higher with adults than the daily permissive intake (Pb: 3.376 × 10−2 mg/kg/day for children and 2.105 × 10−2 mg/kg/day for adults versus 3.6 × 10−3 mg/kg/day for DPI). With respect to cadmium, there was no significant difference between the recorded values and the DPI (Cd: 1 × 14 10−3 mg/ kg/day for children and Cd: 0.71 × 10−3 mg/ kg/day for adults versus Cd: 1 × 10−3 mg/kg/day for adults). This exposure of the population to lead and cadmium through the consumption of antimalarial healing plants could pose public health problems.


Author(s):  
Elisa Serviere-Zaragoza ◽  
Salvador E. Lluch-Cota ◽  
Alejandra Mazariegos-Villarreal ◽  
Eduardo F. Balart ◽  
Hugo Valencia-Valdez ◽  
...  

In the Gulf of California; mineral deposits have contributed to high metal contents in coastal environments. This study examined cadmium; lead; copper; zinc; and iron contents in three fish species; Kyphosus vaigiensis (herbivore), Stegastes rectifraenum (omnivore), and Balistes polylepis (carnivore) at two mining sites. Metal concentrations were analyzed by atomic absorption spectrophotometry and stable nitrogen and carbon isotopes were estimated using mass spectrophotometry. Also, we assessed the risk to human health from the consumption of these three species based on permissible limits; although only two of them (Kyphosus and Balistes) are consumed as food. Metal concentrations differed among fish species; except for iron. The highest concentrations of metals were not always recorded in the species at the highest trophic level; i.e., Balistes. The highest concentrations (dry weight) recorded were cadmium (0.21 ± 0.03 µg g−1) and lead (1.67 ± 0.26 µg g−1), in S. rectifraenum; copper (1.60 ± 0.49 µg g−1) and zinc (67.30 ± 8.79 µg g−1), in B. polylepis; and iron (27.06 ± 2.58 µg g−1), in K. vaigiensis. Our findings show that each element accumulates differently in particular marine organisms; depending on the physiology of the species and the biogeochemistry of its habitat; which in turn is affected by the anthropogenic activities in adjacent areas. No risk of heavy metals toxicity is expected from the human consumption of the species and sites studied


Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4003
Author(s):  
Mirosław Wyszkowski ◽  
Jadwiga Wyszkowska ◽  
Agata Borowik ◽  
Natalia Kordala

The aim of the research was to determine the effect of soil contamination with diesel oil (0; 5; 10 and 15 cm3 kg−1 of soil) on the content of trace elements in the aboveground parts of oat (Avena sativa L.). Stabilised sewage sludge was used to mitigate the likely negative impact of diesel oil on the plant. Growing soil contamination with diesel oil had a significant impact on the content of trace elements in the aboveground biomass of oat. In the series without sewage sludge, the contents of the analysed elements, except for chromium, zinc, copper and cobalt, were positively correlated with the increasing doses of diesel oil. The largest increase in the content was recorded in the case of manganese. The sewage sludge used to reduce the influence of diesel oil on the chemical composition of oat had a positive effect on the content of the analysed trace elements. Compared to the series without the addition of a stabilised sewage sludge, it contributed to a reduction in the average content of chromium, nickel, copper, manganese and cobalt in the aboveground parts of oat plants. No significant effect of the applied remediation treatment was noted for cadmium, and the results were equivocal for iron.


1997 ◽  
Vol 59 (1) ◽  
pp. 94-98 ◽  
Author(s):  
I. Buscema ◽  
A. Prieto ◽  
L. Araujo ◽  
G. Gonzalez

2012 ◽  
Vol 45 (18) ◽  
pp. 2823-2834 ◽  
Author(s):  
Fátima R. Moreira ◽  
Fernanda P. Baptista ◽  
Regina A. Gomes ◽  
Ana Cristina A. Mancebo ◽  
Maria do Carmo B. Souza

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