نتایج جستجو برای: heavy metal contamination

تعداد نتایج: 352575  

Journal: :journal of chemical health risks 0
razzagh mahmoudi department of food health and safety, school of health, qazvin university of medical sciences, qazvin, iran karim mardani department of food hygiene and quality control, faculty of veterinary medicine, urmia university, urmia, iran bahare rahimi d.v.m student, faculty of veterinary medicine, university of tabriz, tabriz, iran

in the present study, the concentrations of three heavy metals including lead (pb), zinc (zn) and arsenic (as) in 72 different honey samples collected from north-western regions of iran were investigated using atomic absorption spectroscopy method. all metals were detected in 88.88% of the honey samples. the range of metals contamination in honey samples was 0.01 to 11.09 ppm. zn was the most a...

Journal: :Journal of environmental sciences 2007
Cheng Jie-liang Shi Zhou Zhu You-Wei

Heavy metal concentrations in agricultural soils of Zhejiang Province were monitored to indicate the status of heavy metal contamination and assess environmental quality of agricultural soils. A total of 908 soil samples were collected from 38 counties in Zhejiang Province and eight heavy metal (Cd, Cr, Pb, Hg, Cu, Zn, Ni and As) concentrations had been evaluated in agricultural soil. It was fo...

Journal: :Journal of biomedical optics 2014
Margarita Vázquez-González Carolina Carrillo-Carrion

Heavy metal contamination is one of the major concerns to human health because these substances are toxic and retained by the ecological system. Therefore, in recent years, there has been a pressing need for fast and reliable methods for the analysis of heavy metal ions in environmental and biological samples. Quantum dots (QDs) have facilitated the development of sensitive sensors over the pas...

Ahangaran lead-zinc mining area located in the west part of Iran is a mountainous region. In this study, medical plants and soils from 3 different sites in this area were collected in spring 2012. Soil and medical plants were analyzed for heavy metals [lead (Pb), zinc (Zn), cadmium (Cd) and copper (Cu)] concentrations using inductively coupled plasma (ICP) optical emission spectrometer (Varian ...

2015
Artee Mishra Kaushala Prasad Mishra

The present study deals with Bacterial response as determinant of heavy metals stress and antibiotics by isolation, identification and characterization of heavy metal resistant bacteria which was isolated from sewage effluent collected in three different places of Ganga river in Allahabad, The two isolates were selected based on high concentration of heavy metal and antibiotic resistances. Morp...

2017
Bifeng Hu Songchao Chen Jie Hu Fang Xia Junfeng Xu Yan Li Zhou Shi

Rapid heavy metal soil surveys at large scale with high sampling density could not be conducted with traditional laboratory physical and chemical analyses because of the high cost, low efficiency and heavy workload involved. This study explored a rapid approach to assess heavy metals contamination in 301 farmland soils from Fuyang in Zhejiang Province, in the southern Yangtze River Delta, China...

2016
Sadia Qayyum Ibrar Khan Farhana Maqbool Yangguo Zhao Qingbao Gu Changsheng Peng

The soil contamination with the heavy metals is the growing concern throughout the world as the result of industrial, mining, agricultural and domestic activities. The fungi are the most common and efficient group of the heavy metal resistant microbial family which have potential for metal bioleaching. The present study was aimed on the isolation and phenotypic characterization of the heavy met...

2010
MILOSLAVA KAŠPAROVÁ JIŘÍ KŘUPKA JAROMÍRA CHÝLKOVÁ

The submitted article addresses the problematic of the cluster analysis. Real data sets concerning the atmospheric precipitation in chosen localities of the Czech Republic were used. The designed models use monthly data from years 2000 to 2007. Presented results refer to a pair of heavy metals – cadmium and lead. The data was processed by the help of the cluster analysis with presenting the res...

2012
Claudia Seiler Thomas U. Berendonk

The use of antibiotic agents as growth promoters was banned in animal husbandry to prevent the selection and spread of antibiotic resistance. However, in addition to antibiotic agents, heavy metals used in animal farming and aquaculture might promote the spread of antibiotic resistance via co-selection. To investigate which heavy metals are likely to co-select for antibiotic resistance in soil ...

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