نتایج جستجو برای: heavy metal pollution

تعداد نتایج: 368026  

Journal: :Environmental science & technology 2016
Yidong Zou Xiangxue Wang Ayub Khan Pengyi Wang Yunhai Liu Ahmed Alsaedi Tasawar Hayat Xiangke Wang

The presence of heavy metals in the industrial effluents has recently been a challenging issue for human health. Efficient removal of heavy metal ions from environment is one of the most important issues from biological and environmental point of view, and many studies have been devoted to investigate the environmental behavior of nanoscale zerovalent iron (NZVI) for the removal of toxic heavy ...

Journal: :int. journal of mining & geo-engineering 2013
samaneh safari sinegani arezoo abedi hamidreza asghari ali akbar safari sinegani

a large volume of tailings has been produced in anjir-tangeh coal washing plant for 22 years of human activity. the coal washing activities have reduced plant diversity near the plant. the environmental impact of coal washing plant on the vegetation around the factory was studied in two seasons. the concentrations of pb, cd and cr, measured in different native plant species, were in normal rang...

ژورنال: طب جنوب 2020
Amini , Kumarss, Kheirkhah , Babak, Rostami , Marzeah,

Background: Heavy metals enter the environment through industrial activities and contaminate natural ecosystems. Identification of heavy metal-resistant bacteria plays an important role in environmental pollution and ultimately cleansing it. Therefore, the aim of the present study was to isolate the resistant genes of Pseudomonas aeruginosa and the effects of nanoparticles on gene expression u...

ژورنال: زیست شناسی دریا 2021
Mokarram, Marzieh, Obeidi, Razagh, Doulah, Abdol Hassan , Ziaeian Nourbakhsh, Haniyeh,

One of the pollutants produced by gas and petrochemical industries in Assaluyeh region is heavy metals which, by entering of these industries into the Persian Gulf, has caused water and aquatic pollution. Therefore, in the present study were investigated the concentration of non-carcinogenic hazard quotient index (NHQI) of heavy metals (Fe, Cr, Pb, Cu, Zn, Cd, Se, Ni) in Persian Gulf waters and...

2015
Vandana Daware Rajendra Patil W. N. Gade

The pollution of the environment with toxic heavy metals is spreading throughout the world along with industrial progress. The present study deals with isolation, identification and characterization of heavy metal tolerant bacteria. Heavy metal tolerating bacteria was isolated from Mula river, Chinchwad, Pune, Maharashtra, India. On the basis of morphological, biochemical, 16S rDNA gene sequenc...

2013
Haiao Zeng Jinglu Wu

Lakes in the middle and lower reaches of the Yangtze River form a shallow lake group unique in the World that is becoming increasingly polluted by heavy metals. Previous studies have largely focused on individual lakes, with limited exploration of the regional pattern of heavy metal pollution of the lake group in this area. This paper explores the sources, intensity and spatial patterns of heav...

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 ...

Journal: :Chemosphere 2005
Tong-Bin Chen Yuan-Ming Zheng Mei Lei Ze-Chun Huang Hong-Tao Wu Huang Chen Ke-Ke Fan Ke Yu Xiao Wu Qin-Zheng Tian

Assessing the concentration of potentially harmful heavy metals in the soil of urban parks is imperative in order to evaluate the potential risks to residents and tourists. To date, little research on soil pollution in China's urban parks has been conducted. To identify the concentrations and sources of heavy metals, and to assess the soil environmental quality, samples were collected from 30 u...

Journal: :international journal of aquatic biology 0
fatemeh kardel faculty of marine science, university of mazandaran, babolsar, iran. farzaneh mirzapour faculty of marine science, university of mazandaran, babolsar, iran. shila omidzahir faculty of marine science, university of mazandaran, babolsar, iran. maryam akhoundian faculty of marine science, university of mazandaran, babolsar, iran.

heavy metal accumulation in the aquatic ecosystems is a main concern which threats human health. in this study two commercial fish species, rutilus kutum and chelon aurata were selected for assessing heavy metal (cd, pb, zn) concentrations in gill and liver tissues at babolsar’s coast, the southern caspian sea, iran. babolsar is one of the important fishery stations in the southern caspian sea....

2009
L. NEI J. KRUUSMA M. IVASK A. KUU

The major sources of heavy metal pollution in Estonia are oil shale industry and oil shale combustion. There is an utmost need to monitorsoil pollution with heavy metals in this region. Earthworms are good accumulators of heavy metals and can be used as bioindicators. Endogeic species Aporrectodea caliginosa and Aporrectodea rosea as well as anecic species Lumbricus terrestris are good bioindic...

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