نتایج جستجو برای: pollution load index pli of studied heavy metals was calculated afterwards

تعداد نتایج: 21246451  

Presence of toxic metals in agricultural soils can impose adverse health impact on consumers. The main purpose of this study was to determine spatial distribution of elements Fe, Sb, Mn in agriculture soils and crops of Hamedan Province in Iran. Soil samples (0-20 cm depth) were collected from an area of 2831 km2.  Iron, Antimony and Manganese in samples of soil and agricultural crop...

2018
Peiru Kong Xian Cheng Ranhao Sun Liding Chen

Aquatic environmental deterioration is becoming a serious problem due to rapid urbanization and economic development, particularly in developing countries. As two important components of the aquatic environment, water quality and sediment pollution are widely considered to be concerns; however, they are considered separately in most cases. The relationship between water quality and sediment pol...

Journal: :محیط زیست طبیعی 0
رضوان زارع زاده دانشگاه هرمزگان پیمان رضائی دانشگاه هرمزگان

gabrik in the east of hormozgan province is mangrove habitat and one of the important mangrove protected area. this area is located in oman coasts. this zone because of building jagin dam on gabrick river and existence of sand barrier and exposure of pollution, it is possible to destroy or to be important threats of this planet. base on importance of this sea inhabitation some of sedimentology ...

Journal: :journal of sciences, islamic republic of iran 2013
f. moore s. kargar f. rastmanesh

in this study, concentrations of heavy metals in soils around a zn-smelter in qeshm island, iran, are investigated. calculated geoaccumulation index (igeo), contamination factor (cf), and contamination degree (cdeg) values indicate surface soil contamination by toxic metals (as, cd, pb, and zn). the results also indicate that most contaminated areas are located in the vicinity of the smelter an...

Journal: :environmental resources research 0
y barkouch laboratoire de toxicologie et d’hygiène industrielle, 1 rue gaston veil, 44035, nantes cedex, france , laboratoire régional du diagnostic épidémiologique et d’hygiène du milieu –marrakech – maroc. a pineau laboratoire régional du diagnostic épidémiologique et d’hygiène du milieu –marrakech maroc

the present study represents a first insight into the draa lasfar min (marrakech - morocco) to assess the degree of polymetallic pollution caused by anthropogenic activities (like mine extraction) and consequently the possible diffusion of heavy metals and to predict the risk of their mobility in the surroundings of the mine area. the edaphologic parameters ph and electrical conductivity (ec) w...

Journal: :International Journal of Environmental Science and Technology 2023

Abstract This is the first study to investigate antioxidant response of phytoplankton community heavy metal stress in open sea. The levels Cu, Zn, Cd, Mn, Pb, and Fe were determined water Abu Talat (AT), El Dekhella Harbour (DH), Alexandria coast during spring 2018 autumn 2019. Furthermore, changes abundance, bioconcentration factor (BCF), pollution index (MPI), load (PLI) used assess status. d...

2014
Bo Gao Jin Lu Hong Hao Shuhua Yin Xiao Yu Qiwen Wang Ke Sun

To investigate the characteristics and potential sources of heavy metals pollution, surface sediments collected from Bohai Bay, North China, were analyzed for the selected metals (Cd, Cr, Cu, Ni, Pb, and Zn). The Geoaccumulation Index was used to assess the level of heavy metal pollution. Pb isotopic compositions in sediments were also measured to effectively identify the potential Pb sources. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

Abbaszadeh, Maliheh , Bakhtiari, Asra, Mirzaei, Rouhollah,

Background and Objectives: The aim of the present study was to assess the probable heavy metals contamination in topsoil surrounding Venarj mine in Qom province using contamination indices and artificial neural networks method. Material and methods:  in order to evaluate the contamination status around Venarj mine in Qom province, 70 soil samples were collected in an area of 22 Km2, and  the to...

Journal: :Journal of Marine Science and Engineering 2022

Red Sea coastal development has rapidly accelerated in recent decades that led to a rise the anthropogenic heavy metal levels sediments. A total of 80 surficial sediment samples were collected from shallow waters along eastern coast near Jeddah, Saudi Arabia. These three locations, designated as North, Middle and South assess concentrations six metals: chromium (Cr), manganese (Mn), nickel (Ni)...

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