نتایج جستجو برای: bioindicator

تعداد نتایج: 843  

Journal: :iranian journal of radiation research 0
p.k. manigandan dhafir institute, abu dhabi, uae

background: a field study on the transfer of primordial radionuclides 238u, 232th, 40k and fallout radionuclides 210po in different plant species in tropical forest of western ghats environment is presented. material and methods: the top storey, second storey, shrubs and epiphytic plant species were chosen and concentration of these radionuclides in plant and soil were measured by employing gam...

2012
Solange Bosio Tedesco

Solange Bosio Tedesco1,2 and Haywood Dail Laughinghouse IV3,4 1Graduate Program in Agrobiology, Department of Biology Universidade Federal de Santa Maria (UFSM), Santa Maria 2Graduate Program in Agronomy, UFSM, Santa Maria 3National Museum of Natural History, Smithsonian Institution, Washington, DC 4College of Computer, Mathematical & Natural Sciences University of Maryland, College Park, MD 1,...

Journal: :medical laboratory journal 0
mehdi najm school of medicine, mazandaran university of medical sciences, sari, iran mahdi fakhar department of parasitology and mycology, school of medicine, mazandaran university of medical sciences, sari, iran

abstract         heavy metals have raised one of the most important problems in ecology and organisms life especially human being and animals. a variety of indicators including tissues of fish, birds and sediment have been used recently to measure the aquatic pollution with heavy metals. the aim of this study was to search the published articles in iran and the world on the role of helminthic p...

2012
Martina Mudrová Petra Slavíková Ales Procházka

The section deals with classification of microscope images of Picea Abies stomas. There is an assumption that a stoma character strongly depends on the level of air pollution, so that stoma can stand for an important environmental bioindicator. According to the level of stoma incrustation it is possible to distinguish several classes of stoma structures. A proposal of an algorithm enabling the ...

Journal: :Journal of Water Technology and Treatment Methods 2019

Journal: :International Journal of Agriculture Environment and Biotechnology 2020

Journal: :American Journal of Applied Sciences 2009

Journal: :iranian journal of toxicology 0
جابر اعظمی jaber aazami department of environment, faculty of natural resources and marine science, tarbiat modares university, noor, iran عباس اسماعیلی ساری abbas esmaili-sari department of environment, faculty of natural resources and marine science, tarbiat modares university, noor, iran سید محمود قاسم پوری seyed mahmoud ghasempouri department of environment, faculty of natural resources and marine science, tarbiat modares university, noor, iran نادر بهرامی فر nader bahramifar department of environment, faculty of natural resources and marine science, tarbiat modares university, noor, iran

background: present study was carried out in north of iran to investigate the concentration of mercury (hg) as one of the most toxic metals in tissues of two species of birds. methods: in this study, 15 birds from coot (fulica atra) and 18 birds from cormorant (phalacrocorax carbo) were hunted in anzali and gomishan wetlands. data-analyses carried out using spss software version 17 licenced by ...

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