نتایج جستجو برای: extractable heavy metals

تعداد نتایج: 170991  

Hamideh Zakariaei Javad Sharifi Rad Majid Sharifi Rad Sara Raeisi,

The heavy metals concentrations including Zinc, Copper, Lead and Cadmium (Zn, Cu, Pb and Cd) in water and sediments in Gorgan Bay and their accumulation in Rutilus frisii kutum, Acipenser persicus, Rutilus rutilus caspicus and Cyprinus carpio organs (gills, muscle, kidney and liver) were investigated. There was substantial increase in concentration of heavy m...

Hamideh Zakariaei Javad Sharifi Rad Majid Sharifi Rad Sara Raeisi,

The heavy metals concentrations including Zinc, Copper, Lead and Cadmium (Zn, Cu, Pb and Cd) in water and sediments in Gorgan Bay and their accumulation in Rutilus frisii kutum, Acipenser persicus, Rutilus rutilus caspicus and Cyprinus carpio organs (gills, muscle, kidney and liver) were investigated. There was substantial increase in concentration of heavy m...

Journal: :iranian journal of environmental sciences 0
s. m. didar-ul islam department of environmental sciences, jahangirnagar university, dhaka-1342, bangladesh mohammad amir hossain bhuiyan department of environmental sciences, jahangirnagar university, dhaka-1342, bangladesh tanjena rume department of geological sciences, jahangirnagar university, dhaka-1342, bangladesh mohammad mohinuzzaman department of environmental science and disaster management, noakhali science and technology university, sonapur-3814, bangladesh

the contamination of riverbed sediments by heavy metals has assumedserious problems due to their toxicity and accumulative behavior. the present studyinvestigated the concentrations of heavy metals from the bottom sediments of shitalakhyariver to understand the level of contamination and their distribution. the averageconcentrations of heavy metals al, k, ca, mg, fe, as, cu, co, cr, and zn are ...

Journal: :پژوهش های محیط زیست 0
روح اله میرزایی دانشجوی دکتری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس عباس اسماعیلی ساری استاد دانشکده منابع طبیعی، دانشگاه تربیت مدرس هادی قربانی استادیار دانشکده کشاورزی، دانشگاه صنعتی شاهرود ناصر حافظی مقدس دانشیار دانشکده علوم زمین، دانشگاه صنعتی شاهرود محمودرضا همامی استادیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان حمیدرضا رضایی استادیار دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

heavy metal contamination has been and continues to be a worldwide phenomenon that heavy metals in the soil have an effect on environment and food quality, and may threaten human health. no information is currently available on the distribution pattern of heavy metals concentration in soils of golestan province. the objective of this research was to determine the spatial distribution of cd, as,...

Journal: :journal of occupational health and epidemiology 0
mr rezaei mh sayadi m khaksarnejad

background: soil pollution and accumulation of heavy metals in crops in industrial areas is one of the most important environmental issues threatening the life of plants, animals, and humans. the aim of this study was to determine the concentration of cr and cd in the soil and barberry plants in farms surrounding the qayen cement company, south khorasan province, iran. materials and methods: in...

Journal: :health scope 0
abdoliman amouei department of environmental health engineering, babol university of medical sciences, babol, ir iran hosseinali asgharnia department of environmental health engineering, babol university of medical sciences, babol, ir iran hourieh fallah department of environmental health engineering, babol university of medical sciences, babol, ir iran hossein faraji department of environmental health engineering, babol university of medical sciences, babol, ir iran reyhaneh barari department of environmental health engineering, babol university of medical sciences, babol, ir iran dariush naghipour department of environmental health engineering, guilan university of medical sciences, rasht, ir iran; department of environmental health engineering, guilan university of medical sciences, rasht, ir iran. tel: +98-1112234366

background wastewater effluent in hospitals has been increasing during the recent decades due to developments in medical services and products. objectives this study aimed to investigate the qualitative parameters of effluent wastewater in hospitals affiliated to babol university of medical sciences (bums). materials and methods four hospitals were included and their wastewater effluent was stu...

Journal: :iranian journal of toxicology 0
علی اکبر هدایتی aliakbar hedayati department of fishery, gorgan university of agricultural science and natural resources, gorgan, iran. زهرا غفاری zahra ghaffari msc student, gorgan university of agricultural science and natural resources, gorgan, iran.

background: copper is a trace element vital to life, but the toxic effect of water pollution with it on fish is now exhibited. fish blood is susceptible to contamination-induced stress and its alternation due to the hematological and immunological parameters can be utilized as toxicity indices of xenobiotics. methods: in this study, juvenile species of silver carp with average weight of 200gr w...

Journal: :iranian journal of toxicology 0
abdul ghani department of biological sciences, university of sargodha,pakistan

background: a pot experiment was conducted to determine the toxic effects of some heavy metals on the plant growth and seed yield of maize (zea mays l.). materials and metheds: heavy metals mn, pb, cd, cr and co individually and in combinations were added as chloride salts in solutions to the pots before sowing. the test plants for were harvested after 80 days of germination and evaluated for n...

Journal: :iranian journal of environmental sciences 0
abderrezak krika department of environmental sciences and agronomic sciences, faculty of nature life and sciences, university of jijel bp 98 ouled aissa, jijel 18000, algeria fouad krika department of process engineering, faculty of technology, university of laghouat, bp 37g, laghouat 03000, algeria

water and sediment samples were collected from six different stations, located along the nil river between february and june 2015. concentrations of cadmium, lead, zinc, and copper were determined. the extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (cf), pollution load index (pli), and the geoaccumulation index (igeo). the result...

Journal: :international journal of health studies 0
jaber yeganeh1 1. dept. of nursing, school of nursing & health, urmia university of medical sciences, urmia, iran saeid nazemi2* 2. dept. of environmental health engineering, school of public health, shahroud university of medical sciences, shahroud, iran. ardeshir yousefzadeh3 3. dept. of map and gis, governor general of west azarbaijan, head of, urmia, iran.

background : the present paper aims to study the effect of human and urban activities on the quality of groundwater within the city of khoy in terms of heavy metals, chemical salts, and minerals from the geological formations of this region. methods : samples were provided from 32 pumping wells and the concentration of heavy metals ( cd, cu, mn, pb, zn, fe, as, and b), the main ions (hco 3 ,so ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید