نتایج جستجو برای: soil pollution

تعداد نتایج: 244622  

Journal: :Risk analysis : an official publication of the Society for Risk Analysis 2008
Frédéric Vandermoere

This case study examines the hazard and risk perception and the need for decontamination according to people exposed to soil pollution. Using an ecological-symbolic approach (ESA), a multidisciplinary model is developed that draws upon psychological and sociological perspectives on risk perception and includes ecological variables by using data from experts' risk assessments. The results show t...

Journal: :Journal of public health medicine 2000
L R Prasad B Nazareth

BACKGROUND In the context of contaminated land, assessing risk involves identifying a source, a pathway and a receptor. We describe how this approach worked in practice following the discovery of high lead levels in the soil of an allotment site in a London borough. METHODS Soil and produce analyses were undertaken. A worst-case scenario was constructed to estimate the maximum potential lead ...

2016
Yuan Liu Yongzhuo Liu Huimin Zhou Lianqing Li Jinwei Zheng Xuhui Zhang Jufeng Zheng Genxing Pan

Denitrification is one of the most important soil microbial processes leading to the production of nitrous oxide (N2O). The potential changes with metal pollution in soil microbial community for N2O production and reduction are not well addressed. In this study, topsoil samples were collected both from polluted and non-polluted rice paddy fields and denitrifier communities were characterized wi...

Journal: :Environmental science and pollution research international 2013
Yuanan Hu Xueping Liu Jinmei Bai Kaimin Shih Eddy Y Zeng Hefa Cheng

Heavy metals in the surface soils from lands of six different use types in one of the world's most densely populated regions, which is also a major global manufacturing base, were analyzed to assess the impact of urbanization and industrialization on soil pollution. A total of 227 surface soil samples were collected and analyzed for major heavy metals (As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, an...

2014
Kohinoor Begum K. M. Mohiuddin H. M. Zakir M. Moshfiqur Rahman

Bogra city is highly susceptible to environmental pollution due to over population, rapid industrialization and urbanization during the last decades. A study was conducted to determine heavy metals (Cu, Zn, Pb, Cr, Cd and Ni) pollution level and physicochemical properties in the soils of Bogra city. The concentrations of heavy metals in 14 soil samples were determined by using an Atomic Absorpt...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2011
a, gandomkar m, hadi

this study aimed to evaluate regional soil borkhar of the metals lead and cadmium has been made. in this field study fires visits to the regions. the limit of this study located in the east refineries, petrochemical and power plant to 20 km was selected. the 41 soil samples from depths of 0 to 10 cm in area and were randomized. soil samples were transported to the laboratory and by air was dry ...

Objective: Metal concentrations in 53 soil samples of Shahr-e-Babak were determined.  Methods: Assessment of enrichment factor and geo-accumulation index revealed higher degree of contamination of Cd, Pb, and Cu in soil samples. Moreover, results of metal fractionation study revealed high amount of Cd and Pb are associated in weakly bounds may lead to environmental risk of these metals.  Result...

Journal: :desert 0
kh. khermandar faculty of agriculture & natural resources, university of ilam, ilam, iran a. mahdavi faculty of agriculture & natural resources, university of ilam, ilam, iran s. ahmady asbchin faculty of basic science, university of mazandaran, babolsar, iran

in desert reclamation strainer plants can be used for improvement and decrease pollution of soil and water. this technology can be used to remove both inorganic and organic contaminants in soil. in this study, one year old acacia victoriae seedlings were exposed to pb (no3)2 in 5 different concentrations; 0, 50, 250, 500 and 1000 mg pb l-1 for 45 days in two growing seasons. subsequently, the h...

Journal: :international journal of environmental research 2010
b. motesharezadeh gh.r. savaghebi-firoozabadi h. mirseyed hosseini h.a. alikhani

heavy metals such as cadmium mainly enter in the environment and ecosystem as a result of human activities. this study was conducted in order to evaluate the ability of bacterial inoculants to enhance efficiency of phytoextraction in a calcareous soil. three plants (amaranthus retroflexus, helianthus annus and medicago sativa), along with three levels of inoculants and four levels of cd were ev...

Journal: :journal of rangeland science 2014
mahdieh ebrahimi fernando madrid díaz

festuca ovina l. is a hyperaccumulating plant which has aroused considerableinterest with respect to its possible use for phytoremediation of contaminated soils. thisstudy has been conducted to evaluate the potentials of f. ovina l. to serve as aphytoremediation plant in the cleaning up of cu in the polluted soils and to identifyextraction efficiency of ethylene diamine tetraacetic acid (edta) ...

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