radon

All that remained was to see whether this energy release more resembled that of gold reacting with mercury or with radon.

Passive systems of mitigation have been shown to be capable of reducing indoor radon levels by up to 50%.

The house contained so much radon that living in it for a year was like being exposed to 260, 000 chest X-rays.

Radon is a chemically inert, naturally occurring radioactive gas. It has no smell, colour or taste.

Radon is a natural radioactive gas that occurs at higher than normal levels in certain parts of the U. S.

Chinese and Russian scientists have reported that in places where stress is building up, the radon levels of the water build up too.

Ventilation has been proved to be a main method to eliminate radon and its daughters in uranium mines.

Natural surface water supplies generally carry little threat of human radiation contamination because radon volatilizes into the atmosphere.

Regular radon activity concentration and effective dose measurements inside the great pyramid with passive nuclear track detectors.

Overall, reducing radon exposure is an important contribution to the goal of good quality indoor air.

But some relativistic calculations suggested it might actually behave like a different element, the inert (and non-metallic) gas, radon.

Radon levels are usually higher in basements, cellars or other structural areas in contact with soil.

On a global level, tens of thousands of lung cancer deaths annually can be attributed to radon.

Domestic radon risks may be dominated by bystander effects-but the risks are unlikely to be greater than we thought.

Third, the children not to use natural stone, such as marble and granite, which is causing the main reason for indoor radon contamination.

Radon escapes easily from the ground into the air, where it disintegrates through short-lived decay products called radon progeny.

Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.

Radon can be transported from deep earth to ground surface and carry information reflecting the underground geological status.

United States scientists have also placed radon monitoring stations in earthquake zones, particularly California.

In addition, reference is made to the novel techniques of the determination of radon and its daughter products in the atmosphere.

Radon is much more likely to cause lung cancer in people who smoke, and is the primary cause of lung cancer among non-smokers.

Water vapor , temperature , and radon and their fluxes in an idealized equilibrium boundary layer over land CO.

Relevant information of geohydrologic environment and radon hot spring was collected and analyzed comprehensively and systematics.

Scientists speculate that the amount of radon increases in the ground when rocks layers shift, exposing new rocks , and thus more radon.

The correlation of radon and mercury is not good, because neither of their variance and mean consistency passed test.

The internal dose from radon exposure can be directly and more accurately evaluated with the measurements by the device.

Passive inhalation ( "secondhand smoke" ) is linked to lung cancer in nonsmokers. Other risk factors include exposure to radon or asbestos.

A mathematic model about the regulation of accumulation of radon in a living house is founded and primarily testified by experiment.

Radon can also be found in drinking water, the concentration depending on the water source, and this can sometimes present a hazard.

Radon safety should be considered when new houses are built, particularly in high radon areas.

Due to dilution in the air, outdoor radon levels are usually very low.

This essay classifies the measured data and analyzes the major factor that influences the indoor radon concentration levels in Chengdu city.

These results are valuable for reasonably determining the radon eduction rate in remedial action on decommissioned uranium mine.

In uranium mine ventilation, wind force , wind pressure and wind direction are the three major factors affecting radon reduction technology.

The usual way to model indoor radon concentrations is to assume lognormal distributions of concentrations on a given territory.

Radon survey and soil-natural thermoluminescence (TL) are two geophysical methods of exploring deep uranium deposits.

It is shown that the radium content is not completely relevant to radon exhalation rate from some building material.

The valuation methods are applied to empirical data for radon-induced lung cancer prevention.

Widespread in the four provinces of Southeast China are U-rich granites , with a high-radon background.

To ensure the optimal temperature of the radon water, make sure to drain the residual cooled radon water in the pipe before use.

The recognition and count of the nuclear track image provides an important basis for radon levels in surroundings.

Thesemeasurements, however, reflect only present exposure, since the degree of radon exposure in the past is un- known.

Radon concentrations can vary between adjacent homes, and can vary within a home from day-to-day and from hour-to-hour.

Radon, derived from naturally occurring uranium in aquifers, also occurs frequently at high levels in groundwater.

Our algorithm uses a hierarchical decomposition of the 3-D radon transform to recursively decompose the backprojection operation.

The invention relates to a kind of radon-proof and radiation-proof masonry cement, which belongs to water-hardness cement technique field.

The pollution of radon indoor is an outstanding environmental problem.

As a product from the uranium disintegration, radon is a natural radioactive idle gas.

Sims uses radioactive clocks to decipher volcanic processes, measuring and comparing two isotopes of radon.

Radon, as aninvisible killer, the second factor which causes lung cancer, is a great public hazard to the human room environment.

As radon progeny decay, they emit radioactive alpha particles and attach to aerosols, dust and other particles in the air.

This significantly elevated risk is strongly associated with cumulated radon exposure.

Radon is a natural radioactive gas that emanates from the ground into the air.

Building codes should be implemented to reduce radon levels in homes under construction.

Finally, some research subjects concerning the application of radon gas in metal ore prospecting are proposed.

If granite, brick sand, cement and gypsum type, especially with radioelement natural stones, Yi release radon.

Examination of the influence of Water-heated central heating systems on the levels of radon and radon progeny in the workplace.

This paper deals with the basic principle of the radon measuring method for detecting goaf.

Radon is a gaseous substance of radioactive. It exists widely in groundwater and atmosphere: or in pores of soil and rock.

Increased radon detection sensitivity: extraction from 200ml of water and liquid scintillation counting.

The cesium-radon period also includes the lanthanides, and the period beginning with francium includes the actinides.

Radon gas released by radioactive rocks beneath buildings can cause lung cancer if inhaled in large quantities.

Radon is a chemically inert, naturally occurring radioactive gas without odour, colour or taste.

A radioactive, inert, gaseous isotope of radon, with a half-life of 3. 92 seconds.

When the radon levels of the water subside and drop back to normal readings, an earthquake may occur.

The sizing grid experiment of soil radon concentration measurement is carried out in Majiatan~Xinshanghaimiao area, Ordos Basin.

To the source to the indoor radon, have put forward and reduced the density measure of indoor radon effectively.

For the average citizen, by far the greatest exposure to radon comes in the home.

and the lack of a radon gas abnormal mode for typical metal deposits.

Store harm to the human body by radioelement radium 226 mainly from the decay of radioactive radon (radon and their sons body).

At the same time, some similarity characteristics of the Radon data over different geological abnormalities have been shown.

Meanwhile, a diurnal fluctuation in indoor radon concentration was observed.

These sources of water normally have much higher concentrations of radon than surface water from rivers, lakes and streams.

The environment Radon logger FD216 is an instantaneous surveying instrument in situ.

The content of radon gas and methane bacteria indicates obvious abnormity above the gas pool.

Objective: Tabacco smoke and residential radon are the first and second leading cause of lung cancer in the world.

Significant health effects have been seen in uranium miners who are exposed to high levels of radon.

Recent studies indicate that radon hazard is a widespread geological hazard.

It is the second leading cause of lung cancer in the U. S. About 12% of lung cancer deaths are linked to radon exposure.

Radon and asbestos. Two other air pollutants require some mention: radon and asbestos.

A campaign to encourage the public to test for and repair radon problems has begun.

[8]Even in the case of radon, only guidelines for action are available.

The method of measuring radioactive radon in the soil is simple, economic and effective.

After analysis, we obtain the balance parameter of single and total radium-radon.

Among those who smoke and are exposed to the same radon concentration, the risk of lung cancer is about 25 times greater.

Radon comes from traces of uranium and radium that exist in practically all rocks and soil.

Other causes include over exposure to radon, asbestos and air pollution.

The effects of atmospheric pressure on the calibration factor of SSNTD for radon w.

Its radon pollution is low, near to the environment background value.

When radon ventilation fans are added radon levels can even be reduced further.

The radioactive dust will contribute to higher levels of uranium and radon.

Seminar on the harm, prevention and treatment of indoor radon sponsored by Nanhua University is held in the People's Great Hall, Beijing .

Accurateestimation of the internal dose from radon exposure is essential to assess the healtheffects.

Most of the radon-induced lung cancer cases occur among smokers.

As Mr. Shan quality testing radon serious way things spread like wildfire, making many people living in the buildings have consternation.

As for updating the periodic table, element 118 would slot in just below radon in the column that contains inert gases.

Radon is estimated to cause between 3% and 14% of all lung cancers, depending on the average radon level in a country.

Radon has been associated with seismic events, and earthquakes can cause the release of radon and other ground gases.

when rocks layers shift , exposing new rock, and thus more radon .

The daughter nuclides of radon and thoron tend to become attached.

Radon is a gas that comes from the radioactive decay of radium in rocks.

Exposure to second-hand smoke and radon gas are thought to play important roles in causing the disease in never-smokers.

Contrastively measuring radon levels of a room by 1027 and RAD7 continuous radon monitor.

Radon is radioactive and hazardous.

The normal dynamic characteristic of gas radon in Liaogu First Well is analyzed.

Radon: Chemical element, chemical symbol Rn, atomic number 86.

Radon is produced from the natural radioactive decay of uranium, which is found in rocks and soil.

Some chemical and radiological substances such as asbestos and radon also increase the risk of the cancer.

the radon levels of the water build up too .

Scientists in China, Russia, and the United States measure radon in ground water.

When inhaled, the radiation exposure from radon may lead to lung cancer.

Indoors, radon levels are higher, with highest levels found in places such as mines, caves and water treatment facilities.

There are also 100 Radon dragon to help them guard.

Where does the indoor radon come from ?

The proportion of lung cancers attributable to radon is estimated to range from 3 to 14%.

the radon level in the basement was impermissibly high.

Small-scale radon chamber is one comprehensive calibrating instrument, which is fit to various kinds of radon detectors at present.

Indoor air pollutants are formaldehyde, radon, ammonia, total volatile organic compounds (TVOC), such as benzene.

When we breathe in radon, the alpha particles emitted in the decay process will cause damage to our lung tissue.

Combining GPS technique with radon-measuring technique can make exploration on fire area of coalfield.

It can he used to survey radon content both in air and soil.

radon radon - 222 is a major source of natural radiation . it is the decay product of.

Soil natural thermoluminescence surveying is an accumulation method of measuring radon and it can measure radon in a long time.

In many countries, radon is the second most important cause of lung cancer after smoking.

Avoid environmental hazards such as radon, asbestos and air pollution.

Radon and Decay Products-is There a Risk Outside the Lung?

Check your home for radon.

Radon is the second most important cause of lung cancer in many countries.

Altitude plays a big role, but the largest source of background radiation comes from radon gas in our homes (about 2 mSv per year).

Mines are notorious fordust and toxic gases such as carbon monoxide and radon, which can enterthe body via the lungs.

That's a huge dose when you consider that each year we receive an average of 2. 4 millisieverts from natural sources such as radon.

What is radon?

Objective To study toxic effect of inhaled radon and its progeny on blood and bone marrow cells of mice.

The Influence of Relative Humidity on the Check Result of the Electrostatic Collecting Type of Continuum Radon Measurement Apparatus

The Analysis of Radon Concentration of the Typical Case of Underground Project and Its Protective Methods

Discussion on formation of the surface radon enrichment caused by subsided column

Study of Measuring Radon Exhalation Rate from Materials Surface by Instrumentality of Activated Charcoal Absorption

Radon Concentration of Domestic Water and Its Controlling Method for Main Northwestern Cities, China

Study on influencing factors in radon measurement of building materials and its application in research of radon prevention materials

Application of RaA radon and VLF methods in the deformation and fracture mass boundary test of a hydroelectric station

Discussion on the Monitoring of the Building Material Radioactivity and the Radon Concentration in Indoor Air

Test for Prediction of Time of Earthquakes Occurrence by Using Slide Variation Rate Method to Radon in Groundwater

Survey of Radon and Thoron Concentration in the Inhabitants'Living Rooms of A Village in the South Area of Yunnan

Indoor Radon Concentration and Estimation of Exposure Dosage of a University in Nanjing

Concrete capillary phenomenon easy mold. Cement ground disseminates harmful gases (radon and formaldehyde), conveying the noise

Test Method for Determination of Radon Decay Product Concentration and Working Level in Indoor Atmospheres by Active Sampling on a Filter

Digitalized radon observation and monitoring efficiency evaluation of earthquake precursor in the Beijing-Tianjin-Hebei region

A new theory of migration of radon and its daughters in the ideal condition and their migration equation

Investigation of Radon Pollution of Waste-rock Yard and Tailing Sand Reservoir of A Uranium Mine

Precursory Anomaly Characteristics of Radon in Groundwater before Moderate- strong Earthquakes in Yunnan Province

Standard guide for radon control options for the design and construction of new low rise residential buildings

Measuring Radon Exhalation Rate from Uranium Tailings by the Instrumentality of Active Carbon Absorption

Development of a portable instantaneous soil radon measurement instrument

Air Pressure Effect of a Scintillation Chamber or an Ionization Chamber as Measuring Radon

Application of Radon Detection Technique with Isotope for Location Determination of Spontaneous Ignition Source

Study of analyzing activated charcoal indoor air radon samples by HPGe detector

Discussion on Concentration Control Limit of Radon and Its Progeny in Underground Uranium Mine

Development of a radon in soil detecting area network system with environmental parameters monitor

Changes and harmfulness of Radon concentration within water-vapor transform process in hot spring at granite area of Guangdong Province

The problems in this respect include the lack of study on radon gas source, transportation and abnormality formation mechanism;

Measuring radon consistence with continuous radon measurement instrument

The design of data acquisition system for radon chamber and its USB communication interface

Effects of Radon and Its Daughters on SOD and MDA in Peripheral Blood of Occupational Population and Rats

Mining of ground heat-water affecting radon in groundwater and its countermeasures

The Abnormity Compare of Radon and its Daughters Survey on Sandstone-type Uranium Deposits

Radon Control Options for the Design and Construction of New Low Rise Residential Buildings

Further Research on the Properties of Boolean Radon Transform and Its Application

Study on architectural coating with compound function of radon-prevention and antibacteria

High Buildings, Construction Material and Its Radon Pollution

Theoretical calculation of vertical migration velocity for helium-radon cluster ions under ideal condition

Development of a Method for Simultaneous Monitoring of Respirable Dust and Radon Daughters in Mine

Deduction arithmetic of continuous measurement the radon daughters potential energy

Standard Practice for Installing Radon Mitigation Systems in Existing Low-Rise Residential Buildings

Preliminary Research on Finite Difference Method to Solve Radon Field Distribution over Sandstone-type Uranium Ore Body

A continuous measuring apparatus base on deduction arithmetic for environmental radon and radon progeny

Monte-Carlo Computation of the Calibration Factor of Solid State Nuclear Track Detector for Radon and the Effect by Atmospheric Pressure

Standard for controlling radon and its daughters in underground space

Curative effect of radon spring bathing on rheumatoid arthritis and its mechanism

Construction and Identification of Subtracted cDNA Library in Peripheral Blood Cells of Radon-exposed Mice

Three-dimensional transient simulation of effects of air pressure, temperature and wind on radon transport

The Space Characteristics and the Results of Numerical Computing of the Radon Field Around a Collapse Column

The directional measurement and calculation of radon migration coefficient

A study of reducing radon level by ventilation in underground space

Practice for Installing Radon Mitigation Systems in Existing Low Rise Residential Buildings

An Investigation of Radon Level in Hot Spring Water and Hot Spring Hotels in Guangdong Province

The comparison study between artificial and digital observation of Radon in Lujiang station of Anhui province

The Influence Factors on the Variation of Indoor Radon Levels in the Water - Vapor Transitional Process of Hot Springs in Guangdong Province

Coupling Relation between the Radon Content in Soil and the Faults in Ninghe County, Tianjin

Determination of radon concentration in main-body engineering tunnel of hydropower station

the lack of radon gas abnormity decomposition and reconstruction techniques;

Radon Concentration in drinking water and water for living use and their study status

Singularities of Piecewise Smooth Functions Radon Transform Along Circles

Radon Emanation and Its Control during Underground Mining

Design and Realization of Calibration Apparatus for Measuring Concentration of Radon

Analysis on Monitoring Data in 10 Years and Concentration Distribution of Radon and Its Daughters in Uranium Mine

The Thermos- diffusion Model Explains the Changes of Radon Concentration with Temperature

Application of radon measuring method to seam spontaneous combustion treatment

The application of the Radon measurement in the selection of the architecture location

The application of linear Radon transform in coherent noise elimination and weak signal extraction

The correlation of adverse effects of radon and its progeny on target tissues in rats

Research on Radon Radiation in Environment and its Prevention and Cure

continuous and automatic radon measurement instrument

Concentrations of indoor radon and thoron in cave-dwellings with discussions on risk estimation of lung cancer

Study on the Properties of the Radon Transform of the Cross Wigner Distribution Function

Research of the Relationship between Indoor Radon and Incidence of Lung Cancer in Gejiu Area

Study on the Accuracy, Stability and Repeatability of Radon Standard Source and Influence Factors

Measuring the HPRT Gene Mutation in Rat after Exposure to Radon and Its Daughters

Application of soil radon survey to searching for sandstone-type uranium deposit at western margin of Ordos basin

Application of virtual instrument in radon chamber temperature monitor system

Intelligent control system design of temperature humidity in mini-type and medium-sized radon chamber

The Radioactive Levels from Environmental Radon and Protection Measures

Estimation standards of personal cumulative exposure to radon decay products for miners

Samples of Indoor Radon Radioactive Contamination in Taiyuan City and Dosage Estimation

Experimental Research on Radon Measurement Using Activated Charcoal in Field

Indoor radon consistency and influence factors in Zhejiang Normal University

Study on the test method for the concentration of radon in soil using electronic test device for radon

Test Technologies of Radioactivity of Building Materials and Indoor Radon Density

The Radiation Effect of Radon and Its Daughters and the Health Influence to Inhabitants

The Graduation of a Track Radon Detector and the Quality Control

standards for controlling radon concentration in dwellings

Notice Avoiding Radon Pollution in Constructing Hydropower Plant

The geochemical characteristics of radon and mercury in the soil gas of buried faults in the Hohhot district

Monitoring Appearing Rate of Radon in Land: Method and Application

Study on the Measurement Methods in Geological Mapping Project for Radon in Gejiu, Yunnan Province

Preliminary Application of Soil Radon Measurement Method in Active Fault Survey in Haikou City

Numerical simulation for radon migration in the homogeneous overburden

Decreasing the Sources of Radon as the Key of Controlling the Indoor Radon Hazards

Discussion of influencing factors on the radon exhalation rate and theoretical model

Measurement methods of radon in water and their application

Investigation on the Concentration Level of Radon in the Tunnel Workplace in A Hydropower Station

Variational Regularity and Stability Judgement of the Data of Water Radon in Fujian Province

Application of Radon Transform in Ground Penetrating Rader Data Processing

The Quality Control and Assurance for Standard Equipment of Radon Concentration

The Test of Radon Measure and Induced Polarization Method in Probe of Underground Multi-storey Fire Area

Discussion on Influence Factors of Radon Concentration's Accuracy of Small Radon Chamber

Spread and Numerical Simulation of Radon and Particle Pollution in Air Conditioning Room

Using the Isotope-measuring-radon Technology for Locating the Fire Source of Coal Spontaneous Combustion

Survey of Environmental Radon Concentrations in Some Large-Scale Construction Projects in Guangdong Province

Analysis of Some Tumor Known Genes and Related Genes- associated Genes in Lung Cancer Tissues of High Radon Exposure Residents

Radon Pollution in Touristy Karst Cave and Its Prevention

The Application of Radon Survey to the Exploration of the Niangchunchi Hot Springs in Mianzhu, Sichuan

Study on Recognition Mark and Prediction Method of Medium-and Short-Term Anomaly of Radon in Groundwater of Shanxi

Producing Mechanism and Ventilation Control of Radon in Underground Space

Harm of radon in underground-buildings of city and its protection

Influence Factor Analysis on Observation of Radon in Groundwater in Qingshuihe

The summarization of radon-measurement instruments

Study on Composite Wall Surface Putty with Anti-Radon and Anti-Radioactivity Properties

Prestack seismic data reconstruction using weighted parabolic Radon transform

The Detecting and Controlling Measures of Radon Gas in the Powerhouse Project in Shuiniujia Hydroelectricity Station

Monitoring and Analysis of Radon Concentration Level in the Residences in Guangzhou