نتایج جستجو برای: metal pollution

تعداد نتایج: 262776  

Journal: :Experimental and toxicologic pathology : official journal of the Gesellschaft fur Toxikologische Pathologie 2013
Lilian Calderón-Garcidueñas Alejandro Serrano-Sierra Ricardo Torres-Jardón Hongtu Zhu Ying Yuan Donna Smith Ricardo Delgado-Chávez Janet V Cross Humberto Medina-Cortina Michael Kavanaugh Tomás R Guilarte

Air pollution exposures are linked to cognitive and olfaction deficits, oxidative stress, neuroinflammation and neurodegeneration including frontal hyperphosphorylated tau and diffuse amyloid plaques in Mexico City children and young adults. Mexico City residents are chronically exposed to fine particulate matter (PM(2.5)) concentrations (containing toxic combustion and industrial metals) above...

2013
Min Jiang Guangming Zeng Chang Zhang Xiaoying Ma Ming Chen Jiachao Zhang Lunhui Lu Qian Yu Langping Hu Lifeng Liu

Xiawanggang River region is considered to be one of the most polluted areas in China due to its huge amount discharge of pollutants and accumulation for years. As it is one branch of Xiang River and the area downstream is Changsha city, the capital of Hunan Province, the ecological niche of Xiawangang River is very important. The pollution treatment in this area was emphasized in the Twelfth Fi...

2017
Ethel M’kandawire Agnieszka Mierek-Adamska Stephen R. Stürzenbaum Kennedy Choongo John Yabe Maxwell Mwase Ngonda Saasa Claudia A. Blindauer

Anthropogenic pollution with heavy metals is an on-going concern throughout the world, and methods to monitor release and impact of heavy metals are of high importance. With a view to probe its suitability as molecular biomarker of metal pollution, this study has determined a coding sequence for metallothionein of the African sharptooth catfish Clarias gariepinus. The gene product was recombina...

2012
Mohammad Reza Vesali Naseh Abdolreza Karbassi Fereydoon Ghazaban Akbar Baghvand Mohammad Javad Mohammadizadeh

Heavy metal concentrations and magnetic susceptibility of sediment samples were analyzed as indicators of urban and industrial contamination in Anzali wetland in Gilan, Iran. The aim was to investigate the suitability of magnetic properties measurements for indicating heavy metal pollution. The concentration of six heavy metals (Ni, Cr, Cd, Zn, Fe, and Pb) was determined in different depths of ...

2017
Zhensheng Wang

Measuring the spatial distribution of heavy metal contaminants is the basis of pollution evaluation and risk control. Considering the cost of soil sampling and analysis, spatial interpolation methods have been widely applied to estimate the heavy metal concentrations at unsampled locations. However, traditional spatial interpolation methods assume the sample sites can be located stochastically ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1387

چکیده ندارد.

2004
Reginald B.H. Tan Hsien H. Khoo

Aim, Scope and Background. Metal die casting is a highly energy-intensive industry. In addition to that, the production of primary zinc by smelting consumes huge amounts of energy as well as generates many types of pollution. This paper uses LCA to investigate the environmental performance of a zinc cast product. The areas of environmental concern are focused on the direct and indirect air emis...

Journal: :European Journal of Soil Science 2002

2014
Jing Li

The magnitude and ecological relevance of metal pollution from the upstream of water sources after emergency pollution events was investigated by applying a set of complementary sediment quality assessment methods: (1) geochemical assessment based on background value (the geoaccumulation index); (2) comparisons with sediment quality guidelines (SQGs); (3) an evaluation of the combined pollution...

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