نتایج جستجو برای: mercury pollution
تعداد نتایج: 110741 فیلتر نتایج به سال:
Mercury emission and speciation of coal-fired power plants in China S. Wang, L. Zhang, G. Li, Y. Wu, J. Hao, N. Pirrone, F. Sprovieri, and M. P. Ancora Department of Environmental Science and Engineering, and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China CNR – Institute of Atmospheric Pollution Research, Via Salaria Km 29....
Sky spectra were obtained from archival science frames taken with DoLoRes at the 3.58m Telescopio Nazionale Galileo with a wavelength range ∼ 3800 − 8000Å and resolution of 2.8 ˚ A/pix and 3.6 ˚ A/pix. Our spectra include all the important Sodium and Mercury light pollution lines and span a wide interval of azimuth and observing conditions, essential to disentangle environmental and seasonal ef...
BACKGROUND Auscultatory mercury sphygmomanometers to measure blood pressure (BP) have been banned from health services because of risk of pollution and environmental accidents with mercury. Aneroid appliances could be an alternative. OBJECTIVE To validate the Missouri aneroid device for blood pressure measurement in cancer patients according to the protocol of the European Society of Hyperten...
due to increasing worldwide water pollution, fish might be a source of excessive zinc, mercury, arsenic or manganese intake. the aim of this study was to evaluate if fish atopy/sensitization and fish consumption behavior are associated with eczema severity and blood levels of the 4 heavy metals. one-hundred and nineteen patients with eczema and 43 patients with miscellaneous non-eczem...
Mercury amalgamation is used indiscriminately in the recovery of gold by small-scale native gem winners in Ghana. Mercury is released into the environment in the form of wastewater, tailing and vapor from the roasting of amalgam to separate gold. The study looked at the levels of total mercury concentration in surface soil and cassava crop from farms located within the vicinities of Bogoso and ...
In widespread informal gold mining in the Amazon Basin, mercury is used to capture the gold particles as amalgam. Releases of mercury to the environment have resulted in the contamination of freshwater fish with methylmercury. In four comparable Amazonian communities, we examined 351 of 420 eligible children between 7 and 12 years of age. In three Tapajós villages with the highest exposures, mo...
Sources of mercury contamination in aquatic systems were studied in a comprehensive literature review. The results show that the most important anthropogenic sources of mercury pollution in aquatic systems are: (1) atmospheric deposition, (2) erosion, (3) urban discharges, (4) agricultural materials, (5) mining, and (6) combustion and industrial discharges. Capping and dredging are two possible...
To evaluate the environmental impacts from large scale mercury mining (LSMM) and artisanal mercury mining (AMM), total mercury (THg) and methyl mercury (MeHg) were determined in mine waste, ambient air, stream water and soil samples collected from Wuchuan mercury (Hg) mining area, Guizhou, Southwestern China. Mine wastes from both LSMM and AMM contained high THg concentrations, which are import...
The production and use of chemicals is an important source of economic welfare in Ghana. However, many chemicals also enter the environment and chemical pollution remains a major environmental issue in Ghana. In Ghana, mining and agriculture remain the major contributors to chemical pollution. For mining; mercury, cyanide and arsenic are normally the reported cases of contamination. Studies hav...
Objective: This paper mainly discusses and summarises the potential issues of pollution caused by the Mineral elements, Mercury, Lead and Arsenic, its possible impacts on the human beings and the suggested solutions. Methods: This paper is prepared by reviewing the latest academic literatures. Result: First, this article discusses two aspects including the effects of Mercury, Lead and Arsenic o...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید