نتایج جستجو برای: exposure to concentrations around 40

تعداد نتایج: 10780847  

Journal: :مدیریت خاک و تولید پایدار 0
زهرا جمشیدی اردکانی دانشگاه زنجان احمد گلچین دانشگاه زنجان دانشکده کشاورزی گروه علوم خاک عبدالحسین پری زنگنه دانشگاه زنجان دانشکده علوم گروه علوم محیط زیست عباسعلی زمانی دانشگاه زنجان دانشکده علوم گروه علوم محیط زیست

earthworms are an important part of food chain in soil ecosystem. in polluted soils, heavy metals are consumed by earthworms and transferred to other organisms through food chain, resulting in many adverse health impacts. due to the benefits of earthworms for soil fertility, it is important to assess the effects of soil pollution on population, biomass and functions of earthworms. to determine ...

Journal: :تحقیقات دامپزشکی 0
سید سعید میرزرگر گروه شیلات،دانشکده منابع طبیعی دانشگاه کردستان جمیله سالار آملی مرکز تحقیقات سم شناسی ،دانشکده دامپزشکی دانشگاه تهران علیرضا باهنر گروه بهداشت و کنترل مواد غذایی ،دانشکده دامپزشکی دانشگاه تهران حسینعلی ابراهیم زاده موسوی گروه بهداشت و بیماریهای آبزیان، دانشکده دامپزشکی دانشگاه تهران

high concentration of heavy metals or long time exposure to low concentrations of these metals can usually decrease the hematological indices in fish. therefore the aim of this study was to indicate changes in hematology and serum chemistry of common carp (cyprinus carpio) after low cadmium concentration exposure. 60 apparently healthy common carp (mean weight of 700g) divided in two groups and...

ژورنال: مجله طب نظامی 2020

Background and Aim: Little attention has been paid to the effects of combined exposure to noise and vibration. Exposure to noise and vibration can effect stress hormones and may lead to high blood pressure and cardiovascular disorders. This study aims to investigate the effects of noise and vibration on urinary Metanephrine and Normetanephrine among men. Methods: In this experimental study, 30 ...

Journal: :jundishapur journal of natural pharmaceutical products 0
farimah sardari department of oral medicine, school of dentistry, rafsanjan university of medical sciences, rafsanjan, ir iran samira hajisadeghi department of oral medicine, school of dentistry, qom university of medical sciences, qom, ir iran; department of oral medicine, school of dentistry, qom university of medical sciences, qom, ir iran

results the mean of the inhibition zone diameter around the discs of green tea extract in all concentrations was significantly less than 1% sodium hypochlorite (p < 0.001). the antimicrobial effect increased in higher concentrations of extracts of green tea (p < 0.001). conclusions although the antimicrobial effect increases in higher concentrations of extracts of green tea, 1% sodium hypochlor...

Journal: :Acarologia 2023

Spirodiclofen is characterized by a relatively slow acaricidal action against adult females of the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), with reduction their fecundity (eggs laid/female) and fertility hatched/female). Exposure pre-ovipositing T. to acaricide may affect population growth, considering that high reproduction young crucial in biology this coloniz...

2010
Ferran Ballester Marisa Estarlich Carmen Iñiguez Sabrina Llop Rosa Ramón Ana Esplugues Marina Lacasaña Marisa Rebagliato

BACKGROUND Maternal exposure to air pollution has been related to fetal growth in a number of recent scientific studies. The objective of this study was to assess the association between exposure to air pollution during pregnancy and anthropometric measures at birth in a cohort in Valencia, Spain. METHODS Seven hundred and eighty-five pregnant women and their singleton newborns participated i...

A. Esmaili Sari A. Mashinchian Moradi F. Shariati, M. Pourkazemi

Tissue metal accumulations (gills, liver, kidney and muscle) in Persian sturgeon (Acipenser persicus) were compared folowing exposure to sublethal levels of waterborne Cd (50, 400 and 1000 μg•L-1) after periods of 1, 2, 4 and 14 days. The obtained results indicate that at the end of 4 and 14 days of exposure, total tissue cadmium concentration followed the pattern: liver > gill > kidney > muscl...

Journal: :international journal of marine science and engineering 2012
f. shariati a. esmaili sari a. mashinchian moradi m. pourkazemi

tissue metal accumulations (gills, liver, kidney and muscle) in persian sturgeon (acipenser persicus) were compared folowing exposure to sublethal levels of waterborne cd (50, 400 and 1000 μg•l-1) after periods of 1, 2, 4 and 14 days. the obtained results indicate that at the end of 4 and 14 days of exposure, total tissue cadmium concentration followed the pattern: liver > gill > kidney > muscl...

Journal: :international journal of marine science and engineering 0
f. shariati department of marine biology, faculty of marine science and technology, science and research branch, islamic azad university, tehran, iran a. esmaili sari department of environment, natural resources and marine science faculty, tarbiat modares university, noor, iran a. mashinchian moradi department of marine biology, faculty of marine science and technology, science and research branch, islamic azad university, tehran, iran m. pourkazemi international sturgeon research institute, rasht, guilan, iran

tissue metal accumulations (gills, liver, kidney and muscle) in persian sturgeon (acipenser persicus) were compared folowing exposure to sublethal levels of waterborne cd (50, 400 and 1000 μg•l-1) after periods of 1, 2, 4 and 14 days. the obtained results indicate that at the end of 4 and 14 days of exposure, total tissue cadmium concentration followed the pattern: liver > gill > kidney > muscl...

مهران هودجی, , احمد جلالیان, ,

Soil pollution and accumulation of heavy metals in crops in industrial areas are the most important bioenvironmental problems that threaten the life of plants, animals and humans. The objective of this study was to determine Ni, Mn and Cd distribution in soil and crops shoots around the Mobarakeh Steel Plant. In this study, we separated 50 zones based on soil utility maps taking into considerat...

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