hazardous elements

Recent advance of study on hazardous elements in coal and significance for environmental protection

煤中有害元素的研究现状及其对环境保护的意义

Migration of hazardous elements in acid coal mine drainage

煤矿酸性矿井水中有害元素的迁移特性

Analysis of Hazardous Elements in Foods of Animal Livers

几种肝脏食品中部分有害物质含量分析

Cleaning potential of hazardous elements during coal washing

煤中有害元素的洗选洁净潜势

Two Major Requirements for Eco-Type of Cable Materials & Determination and Analysis of Toxicity and Hazardous Elements

电缆材料绿色化的两大指标&毒性和有害元素的检测和分析

Forward-looking of the Restriction of hazardous elements and Non-destructive testing methods in Jewelry products

饰品中有害元素的限定及无损检测方法的前瞻

Supervision on the Hazardous Elements of Occupational Diseases in Chaoyang District of Beijing from 1998 to 2002

北京市朝阳区1998～2002年职业病危害因素监测与健康监护结果分析

The Occurence of Trace Hazardous Elements in High-sulfur Coals

微量有害元素在高硫煤中的存在状态

Determination of As , Cd , Hg , Pb Hazardous Elements in Gadolinium Oxide by ICP-MS

ICP-MS法测定氧化钆中铅、镉、汞、砷等有害元素

Experimental Study on Erosion of Hazardous Elements ( K , Na , Zn , Pb ) to Refractory Brick for Blast Furnace

有害元素（K，Na，Zn，Pb）对高炉用耐火砖的侵蚀实验

The migration of hazardous elements are mainly controlled by pH , contents of Fe-Al-Mn , and minerals compositions of particles in water .

酸性矿井水中有害元素的迁移主要受pH，Fe-Al-Mn含量和水体颗粒物矿物组成的控制；

The results indicated that , except S , U , Se , Br and Mo , the contents of other hazardous elements in the coalbed are low with a lower environmental risk .

研究表明：除S，U，Se，Br和Mo明显富集之外，其他有害元素的含量较低，对环境的危害性较小；

Statistic analysis was made on the hazardous elements of occupational diseases and health protection status from 1998 to 2002 . The average eligible rate of the hazardous elements in the productive environment was 90.8 % ;

方法对1998～2002年该区职业病危害因素监测与健康监护情况进行统计分析。结果生产环境有害因素监测平均合格率90.8%。

Effectiveness of Coal Preparation in Removing Hazardous Trace Elements in Air

洗选处理对大气有害微量元素的脱除效果研究

Discussion on hazardous trace elements precipitation process in coal gangue

煤矸石中潜在有害微量元素析出过程探讨

GE food contains hazardous genetic elements from disease viruses .

GE食品则含有病毒的遗传因素从危险。

Modes of Occurrence on Hazardous Trace Elements in Coal

煤中有害微量元素的赋存状态

Washability Characteristics of Hazardous Trace Elements in Coals from Western Region of China

西部煤中有害痕量元素的洗选脱除特性

Leaching is one of the important ways for hazardous trace elements in coal spoils to cause environmental pollution .

淋溶是有害微量元素从煤矸石中析出后污染环境的重要途径。

Relationship Between Volatilization of Hazardous Trace Elements and Their Occurrences and Combustion Temperatures During Coal Combustion

燃煤过程有害微量元素挥发与其赋存状态及燃烧温度的关系

Occurrence of potentially hazardous trace elements in coal from Qianxi fault depression area , Guizhou province , China

黔西断陷区煤中潜在毒害微量元素赋存状态分析觹

But , whether hazardous trace elements in waste will pollute the peripheral environment is still worth pondering .

但是，固废中的有害微量元素是否会污染周边环境值得思考。

The type , efficiency and condition choice of leaching experiment as well as the factors controlling the leaching behavior of hazardous trace elements are discussed .

对燃煤产物淋滤实验的类型、淋滤试验的有效性及条件选择、影响有害元素可溶性（淋滤行为）的因素进行了讨论；

During coal combustion , some hazardous trace elements volatilize from combustion furnaces into the atmosphere and pollute the environments .

煤在燃烧过程中，部分微量元素从燃烧炉中挥发，进入大气，污染环境。

Hazardous trace elements analysis and test indicate that the pigment is safe , harmless , nutritious and all the indicators are accord with national standard .

对该色素粗成分、微量元素及其他指标等检测表明，此色素安全无毒且富含营养，各项指标基本符合国家标准，定性鉴别实验结果完全符合国标要求。

Based on a static leaching experiment of gangues , leaching characters of seven hazardous trace elements were studied , and factors affecting the leaching-out of trace elements were analysed .

在煤矸石的静态淋溶试验的基础上，研究了7种有害微量元素的淋溶特性，分析了微量元素析出的影响因素。

This paper gives the definition of hazardous trace elements in coal , namely , the hazardous trace elements coal contain toxic cancer - inducing , corrosive , radioactive elements , of which concentrations are less than 1.0 % .

本文给出了煤中有害微量元素的定义，即煤中含量小于1.0%的有毒元素、致癌元素、腐蚀性元素、放射性元素以及其它对环境有害的元素等。