搜索结果: 1-15 共查到“理学 heavy metals”相关记录22条 . 查询时间(0.111 秒)
Flexible, wearable X-ray detector doesn’t require heavy metals
X ray imaging MOF Medical imaging
2021/8/6
X-ray imaging is a fast and painless way for doctors to see inside a person. But radiation detectors, which go under the body part being imaged, are rigid panels that contain harmful heavy metals, suc...
Distribution and accumulation of heavy metals in sediments of the northern part of mangrove in Hara Biosphere Reserve, Qeshm Island (Persian Gulf)
anthropogenic contamination ecological risk pollution sediments
2017/6/26
The mangrove of Hara Biosphere Reserve, stretching over 100 thousand hectares in the southern coast of Iran and in the northwest of Qeshm Island, belongs to the most important and largest mangroves in...
Statistical characteristics of heavy metals content in groundwater and their interrelationships in a certain antimony mine area
Groundwater Heavy metals Content Statistical characteristics Interrelationships Antimony mine
2018/3/23
In recent years, most of domestic and foreign researches about heavy metal pollutions of metal mine mainly focus on water, soil and plants on the surface. There is lack of researches about heavy metal...
Studies on heavy metals in industrial effluent, river and groundwater of Savar industrial area, Bangladesh by Principal Component Analysis
Industrial effluent Wastewater Heavy metals Principal component analysis Statistical analysis
2014/11/12
A total number of twenty water samples of which seven groundwater, six river water and seven effluent samples were collected from Savar industrial area in Bangladesh for heavy metals analysis using IC...
Episodic Sedimentation of Heavy Metals and Iron in Bizerte Lagoon, Northern Tunisia
Core Clay Minerals Organic Matters Heavy Metals Bizerte Lagoon Tunisia
2013/3/11
The correlations between various sedimentological and geochemical parameters permit to identify the main sedimenta tion phases of pollution carriers, especially those related to the sediment cores lit...
Seasonal Variation and Sources of Heavy Metals in Atmospheric Aerosols in a Residential Area of Ulsan, Korea
Temporal variation PM2.5 PM10 Heavy metals Source identification
2016/3/28
This study investigated seasonal variations in mass concentrations of particulate matter (PM) and compositions of heavy
metals in PM2.5 and PM10 collected from a typical urban residential area in Uls...
Heavy Metals in Soils around the Cement Factory inRockfort, Kingston, Jamaica
Cement Dust Rockfort Kingston Heavy Metals Jamaica
2013/3/6
This study deals with the distribution of heavy metals in soils around one of the most important industries in Kingston, Jamaica i.e. the Carib Cement factory at Rockfort. The dust emitted from the Ca...
Characteristics of Heavy Metals Emitted from a Heavy Oil-Fueled Power Plant in Northern Taiwan
Heavy oil power plant metal Emission factor Ambient atmosphere Operational parameters
2016/3/29
The characteristics and distribution of metal contents emitted from a power plant fueled by heavy oil and its impact to
the ambient atmosphere near the power plant was investigated. The current inves...
The genotoxic potential of two heavy metals in inbred lines of maize (Zea mays L.)
Zea mays inbreds mercury cadmium chromosomal anomalies
2010/3/17
The genotoxic effects of 2 heavy metals (mercury chloride and cadmium chloride) on the gametic cells of 6 inbred lines of maize were tested in terms of cytological abnormalities. Meiosis was normal un...
Concentration data for the elements arsenic, cadmium, cobalt, molybdenum,
zinc, and uranium in eleven Norwegian rivers, determined by neutron activation
analysis, are presented. The mean values of t...
Sedimentary record of heavy metals in Lake Rõuge Liinjärv,southern Estonia
heavy metals 210Pb dating sediments Lake Rõ uge Liinjä rv
2009/10/21
Anthropogenic impact on Lake Liinjärv (Rõuge, southern Estonia) was studied back to the mid-19th century on the basis of heavy metals (Pb, Cu, Zn, Mn, and Hg) and geochemical parameters of...
Laboratory Determination of Multicomponent Effective Diffusion Coefficients for Heavy Metals in a Compacted Clay
contaminant transport diffusion coefficients heavy metals clay liner Ankara clay
2009/7/7
Diffusion and sorption of heavy-metal ions (Cd, Cr, Cu, Fe, K, Mn, Ni, Pb, and Zn) through an Ankara clay liner were studied experimentally. The Ankara clay consists of calcite, quartz, smectite and i...
Investigating the influence of heavy metals on macro-invertebrate assemblages using Partial Cononical Correspondence Analysis (pCCA)
macroinvertebrates heavy metals urban streams tolerance sensitivity
2009/3/12
This paper defines the spectrum of impairment to stream macroinvertebrates arising from urban runoff.
Preconcentration and Determination of Trace Amounts of Heavy Metals in Water Samples Using Membrane Disk and Flame Atomic Absorption Spectrometry
preconcentration atomic absorption spectrometry
2007/12/20
摘要 A fast and simple method for preconcentration of Ni2＋, Cd2＋, Pb2＋, Zn2＋, Cu2＋ and Co2＋ from natural water samples was developed. The metal ions were complexed with sodium diethyldithiocarbamate (Na...
Cd. The spatial distribution and chemical forms of heavy metals in tidal flat sediments were closely related to the distribution of pollution resources (outlet of sewage) and the local se...