نتایج جستجو برای: by increasing arsenic level from control a1 to 90 mg kg

تعداد نتایج: 13627079  

Background and Objectives: Groundwater sources, as strategic sources of water supply, are of particular importance for human beings. Arsenic is a toxic and carcinogenic contaminant that has been reported to be widely found in groundwater sources. In recent years, adsorption property of nanoparticles has been used to remove arsenic. The present study was performed with the aim of assessing the a...

2010
Dinesh Kumar

The present investigation was undertaken with an attempt to generate information pertaining to the assessment of arsenic residues in the vital organs like liver, lungs kidneys along with blood and hair as biomarker of chronic arsenic exposure using guinea pigs as experimental animal. For this purpose the guinea pigs were divided into two groups having 5 animals in each group. Group I animals we...

Journal: :International Journal of Clinical Biochemistry and Research 2023

The study investigated the effect of bark powder on circulatory immune complexes and total immunoglobulins level in Kosali breed cattle environmentally exposed to arsenic contamination through water fodder. Arsenic concentration was significantly (p<0.05) higher drinking water, fodder blood samples collected from contaminated area as compared uncontaminated (control area). reared showed...

Mohammad Fahim , Namdar Yousofvand,

Background: In the present study, histopathological effects of chronic exposure to sodium arsenate in drinkable water were studied on a quantity of organs of rat. Methods: Rats were divided into two groups, group I served as control group, were main-tained on deionized drinkable water for 2 months, and group II the study group were given 60 g/ml of sodium arsenate in deionized drinkable wa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...

2017
Amund Maage Bente M. Nilsen Kaare Julshamn Livar Frøyland Stig Valdersnes

Meat samples of 84 minke whales (Balaenoptera acutorostrata) mainly from the Barents Sea, collected between 1 May and 16 August 2011, were analyzed for total mercury, methylmercury, cadmium, lead, total arsenic, inorganic arsenic and selenium. The average total mercury concentration found was 0.15 ± 0.09 mg/kg, with a range from 0.05 to 0.49 mg/kg. The molar ratio of selenium to mercury varied ...

To evaluate the protective effect of Zataria multiflora boiss. (Zm) extract against arsenic-induced oxidative damage in rats. Rats were orally treated with various doses of Zm (200, 400, and 600 mg/kg) and sodium arsenite (5.5 mg/ kg), alone or in combination, once daily for 30 consecutive days. Twenty-four hours after the last dose, rats were euthanized, and biochemical studies were conducted ...

Journal: :The Science of the total environment 2013
Y Tapia O Diaz C Pizarro R Segura M Vines G Zúñiga E Moreno-Jiménez

The Pre-Andean area of Chile exhibits saline soils of volcanic origin naturally contaminated with arsenic (As), and we hypothesise that revegetation with resistant species may be a valid alternative for soil management in this area. Thus, the xerophytic and halophytic shrubs Atriplex halimus and Atriplex atacamensis were cultivated in containers for 90 days in Pre-Andean soil, As-soil, (111±19 ...

Journal: :آب و خاک 0
ابراهیم بابائیان مهدی همایی رسول راهنمایی

phytoextraction is a remediation technology for contaminated soils with lead (pb). the application of chelating agents can be resulted in high efficiency in this method. in current study, the effect of synthetic and natural chelates applicationon efficiency of lead phytoextraction from soil by carrot was investigated. the experiment factors were 1) six levels of pb (0, 100, 200, 300, 500 and 80...

Journal: :journal of ornamental plants 2015
m. kamali m. sarcheshme pour a.a. maghsoudi moud

copper is an essential micronutrient for plant growth which is involved in many metabolic processes. however excessive amounts of copper may cause environmental pollution. with an increase in the contamination of urban areas with heavy metals, more attention should be paid to the role of ornamental plants in removing pollutants from the soils. the effects of heavy metals on the growth parameter...

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