نتایج جستجو برای: arsenic level

تعداد نتایج: 1096164  

Journal: :international journal of environmental research 2011
d.a. ahsan t.a. del valls

arsenic in ground water is a very serious environmental hazard of bangladesh and west bengal of india. the presence of high level of arsenic (

Journal: :تولید گیاهان زراعی 0
مصطفی حیدری گروه زراعت و اصلاح نباتات- دانشکده کشاورزی- دانشگاه شاهرود سپیده محمدی گروه زراعت دانشگاه زابل مهدی دهمرده گروه زراعت- دانشگاه زابل حمید رضا اصغری گروه زراعت- دانشگاه زابل

introduction and aim: arsenic is a metalloid toxic for plants. arsenic is polluting the environment through the natural and artificial resources. it is harmful to human health. arsenic in plants for the production of the reactive oxygen species (ros) lead to destruction of nucleic acids and proteins in tissues of plants. it also reduces of photosynthesis and growth by destroy of the membranes o...

Journal: :Bangladesh Medical Research Council bulletin 2009
Zubaida Khatoon Choudhry Mir Misbahuddin A K M Mosharrof Hosain Ahmed Abu Saleh

An in vivo study was carried on rats to see the influence of arsenic on aerobic gut flora. A significant inhibition of gut flora was observed after 2 weeks of administration of arsenic (1 mg/L) ad libitum with a decrease in stool arsenic level and increase in liver arsenic level. However, this inhibitory effect of arsenic on gut flora was not observed in presence of vitamin E (1 mg/day) or sele...

Journal: :health scope 0
hossein alidadi department of environmental health engineering, health sciences research center, mashhad university of medical sciences, mashhad, ir iran; department of environmental health engineering, health sciences research center, mashhad university of medical sciences, mashhad, ir iran. tel: +98-5138552610, fax: +98-5138522775 azam ramezani school of health, mashhad university of medical sciences, mashhad, ir iran mojtaba davodi department of environmental health engineering, health sciences research center, mashhad university of medical sciences, mashhad, ir iran roya peiravi social determinants of health research center (sdhrc), department of environmental health engineering, gonabad university of medical sciences, gonabad, ir iran maryam paydar social determinants of health research center (sdhrc), department of environmental health engineering, gonabad university of medical sciences, gonabad, ir iran maryam dolatabadi school of health, mashhad university of medical sciences, mashhad, ir iran

conclusions given the high levels of arsenic in the rivash water sources, it is essential that a plan be devised to replace the current supply with safe drinking water. moreover, these water resources should be monitored regularly regarding the risk of contamination with arsenic. results the average arsenic levels in stations a, b, c, d, e, f, g, h, i, and j were 1.53 ± 1.03, 1.30 ± 1.07, 10.55...

ژورنال: سلامت و محیط زیست 2008
برقعی, مهدی, تقی پور, حسن, حسنی, امیر حسام, قدیرزاده, ایوب, مسافری, محمد, کمالی کردآباد, زهره,

Background and Objectives: Conducted studies about arsenic have shown that consumption of water contaminated with arsenic can causes different adverse health effects in consumers. World Health Organization (WHO) has enacted 10µg/L arsenic in drinking water as a guideline value. Regarding some reports about arsenic presence in a village of Hashtrood county and related health effects and also con...

Journal: :Stroke 2010
Lynda D Lisabeth Hyeong Jun Ahn John J Chen Shawnita Sealy-Jefferson James F Burke Jaymie R Meliker

BACKGROUND AND PURPOSE Mechanistic and human studies suggest a role for arsenic in ischemic stroke; however, risks from chronic, low-level exposures are uncertain and US studies are lacking. The objective was to investigate the association between low-level arsenic exposure in drinking water and ischemic stroke hospital admissions in Michigan. METHODS Ischemic stroke hospital admissions among...

2008

• Absorption of arsenic is largely dependent on the solubility and particle size • Concentrations of arsenic or its metabolites in blood, hair, nails and urine may be used as biomarkers of arsenic exposure • Blood arsenic is a useful biomarker only in the case of acute arsenic poisoning or stable chronic high-level exposure • Since the elimination of arsenic takes place mainly via the kidneys, ...

Introduction: Arsenic is a highly toxic element that is widely distributed in environment. Antioxidants depletion and oxidative stress is now considered as one of the possible mechanisms of arsenic-induced toxicity. N-acetylcysteine (NAC) and Curcumin (Cur) are potential antioxidants that can compensate the depletion of antioxidants. This study aimed to compare the hepatoprotective effect of Cu...

Journal: :Environmental geochemistry and health 2015
Xun Shi Joseph D Ayotte Akikazu Onda Stephanie Miller Judy Rees Diane Gilbert-Diamond Tracy Onega Jiang Gui Margaret Karagas John Moeschler

There is increasing evidence of the role of arsenic in the etiology of adverse human reproductive outcomes. Because drinking water can be a major source of arsenic to pregnant women, the effect of arsenic exposure through drinking water on human birth may be revealed by a geospatial association between arsenic concentration in groundwater and birth problems, particularly in a region where priva...

2015
Katherine A. James Tim Byers John E. Hokanson Jaymie R. Meliker Gary O. Zerbe Julie A. Marshall

BACKGROUND Chronic diseases, including coronary heart disease (CHD), have been associated with ingestion of drinking water with high levels of inorganic arsenic (> 1,000 μg/L). However, associations have been inconclusive in populations with lower levels (< 100 μg/L) of inorganic arsenic exposure. OBJECTIVES We conducted a case-cohort study based on individual estimates of lifetime arsenic ex...

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