نتایج جستجو برای: and metals

تعداد نتایج: 16838403  

Journal: :journal of chemical health risks 0
mahmood naseri zahedeh rahmanikhah vahid beiygloo somayeh ranjbar

dietary intake is the most important route of exposure to heavy metals for most people. rice is a staple food for iranians that, if polluted, threatens public health. cooking process may affect heavy metals content of rice. in this study, concentrations of cadmium (cd), lead (pb), chromium (cr), nickel (ni) and cobalt (co) were measured in 3 brands of imported rice available in shiraz-iran mark...

ژورنال: سلامت و محیط زیست 2021

Background and Objective: Pollutants emitted from industries can endanger human health if they enter the food chain, so environmental monitoring is essential. The aim of this study was to investigate the bioaccumulation of heavy metals including lead, copper and nickel and the level of air pollution tolerance index in Prosopis juliflora and Conocarpus erectus tree species during one-year period...

Journal: :آب و خاک 0
شادی شفاعی امیر فتوت رضا خراسانی

iron (in zero-valent and oxide forms) is used to remove numerous organic and inorganic contaminants in environment. however, there are few reports, especially in nano scale, on the remediation of heavy metals contaminated soils using zero-valent iron in the literature. in this study, the effect of iron on the availability of heavy metals was evaluated in a calcareous soil spiked with cadmium, z...

Introduction: Uncontrolled and improper landfilling of solid waste increases the concentration of heavy metals in the soil. Therefore, this study aimed to investigate soil contamination with heavy metals in the landfill of municipal and hospital waste in Sabzevar city by compiling a map of the severity of heavy metal pollution in the soil. Materials and Methods: Concentrations of heavy metals ...

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: :مجله تغذیه و امنیت غذایی 0
mohammad hossien salmani neda shirvani zahra shekari department of environmental health, school of public health, shahid sadoughi university of medical sciences, yazd, iran

background: one of the most critical problems in the field of water and food pollution is the heavy metal pollution. agricultural products are exposed to this type of contamination through wastewater; industrial activity and population pollutions are also in its area. since the plant in the affected areas can directly enter heavy metals into the food chain, so, it is important to check their le...

This study aims at investigating the effect of distance from source, species type and soil physical chemical properties on the absorption ability of heavy metals by tree species around the Nahavand cement factory. In the present research, soil and tree leaf (Pseudoacacia L, Populus nigra L, Elaeagnus angustifolia L, Fraxinus excelsior and Thuja orientalis L) samples were taken from 300, 500, 80...

Mohammad Sedghi, Seyedeh Yalda Raeesi Sadati Sodabeh Jahanbakhsh Godekahriz

One of the important abiotic stresses that negatively affect cereals such as wheat is heavy metals. Soil pollution with heavy metals has become one of the major environmental concerns resulting from the industrial development and use of fertilizers containing heavy metals. One way to counteract the negative effects of heavy metals in plants which produce reactive oxygen species is the activatio...

Journal: :تحقیقات آب و خاک ایران 0
مهدی باهمت کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی محسن فرحبخش استادیار، پردیس کشاورزی و منابع طبیعی احمدعلی پوربابایی استادیار، پردیس کشاورزی و منابع طبیعی غلامرضا ثواقبی دانشیار، پردیس کشاورزی و منابع طبیعی

use of electrokinetic technique for remediation of contaminated soils has recently been highly attended to, but there are still concerns regarding the effect of this process on soil microbial activity. in this study, changes in concentration of heavy metals extractable through 4n nitric acid, microbial biomass-c, and microbial coefficient, following electrokinetic remediation of a native soil c...

Journal: :advances in environmental technology 0
kourosh razmgar department of chemical engineering, ferdowsi university zahra beagom mokhtari hosseini department of chemical engineering, hakim sabzevari university

the pollution of water environments is a challenging issue especially in developing countries. contamination of drinking water with heavy metals has been reported in many parts of the world. arsenic, chromium and lead are dangerous heavy metals and also common contaminants of drinking water. in this study, the capacity and performance of the surfactant-modified sabzevar natural nanozeolite (sms...

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