1. Radon is the daughter of radium.

2. Equally high domestic lifetime radon exposures are rarely found.

3. Why is radon in homes the problem?

4. Would firms move into areas with high radon concentrations?

5. But who do we blame for radon?

6. Can data on radon exposure and cancer risks in uranium miners be applied to the general population?

7. Radon, a naturally-occurring radioactive gas, is formed in the earth from the decay of minute amounts of uranium.

8. Radon is a colourless, odourless and tasteless gas found in group O of the Periodic Table.

9. If the soil is permeable enough radon can diffuse out before it decays.

10. In recent years, radon has been recognised as the main source of human exposure to ionising radiation.

11. One area of recent debate concerns radon gas and its links to lung cancer.

12. As for radon,[Sentence dictionary] Rudy said looking for radon in drinking water would be extremely expensive and might not help public health.

13. Suspended floors to allow air flow and prevent radon build-up.

14. Several small contracts to provide radon potential maps have been completed.

15. Radon gas can be detected using an easily obtainable device.

16. Environmentalists keep quiet because concern over radon in houses would divert attention from the campaign against nuclear power.

17. Radon has been used to detect uranium mineralisation and also to locate faults which may control mineral deposition.

18. Radon exposure is the hottest issue among radiation scientists today - but it remains almost entirely unknown to the public.

19. Radon comes from the uranium that occurs naturally in the ground.

20. But in two dimensions, Radon transform is not local.

21. A radon progeny continuous monitor was developed.

22. Radon is a kind of inert gas.

23. There is an acknowledged risk of lung cancer from radon.

24. In recent years, concern has been raised over exposure to ionizing radiation from radon gas.

25. The South West has some of the highest levels of household radon in the country.

26. They are the noble gases: neon, argon, krypton, xenon, and radon.

27. Recent research seems to indicate a positive correlation between the incidence of acute myeloid leukaemia and indoor radon concentrations.

28. The applicability of such data derived from uranium miners to the general population is central to the radon issue.

29. Public awareness of the hazard caused by the accumulation of elevated levels of radon in buildings continues to grow.

30. This is the so-called Action Level beyond which the occupier is advised to reduce the radon level.

31. The radon level in the basement was impermissibly high.

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

33. Based on above analysis, a acceleration estimation method based on Radon Wigner Transform(RWT) is proposed.

34. A radon proof hydrous paint could well avoid the perniciousness of radon. The results of experiment and ...

35. Experts noted that the current urban living environment is the main source of radioactive hazards of indoor radon and radioelement content standard building materials.

36. To describe the inhomogeneity of temporal - spatial distribution of station, showing Radon anomaly, CV value is employed.

37. Scintillation flask method for measuring radon concentration in the air.

38. Objective To investigate the contaminated condition of formaldehyde, benzene series, radon in doors air of newly decorated residences.

39. This paper presents discussions of the radon - affecting factors and radon prevention measures.

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

41. On the basis of distribution of radioactive elements and geological background , the theory equation of radon exhalation rate is derived from the decay rule of radioactive elements and gas diffusion.

42. Sections 301 - 311, added in 1988,[] relate to indoor radon abatement.

43. This article analyses the reasons of the indoors air pollution production and brings up the pollution mainly consists of formaldehyde, benzene series, ammonia and radon.

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

45. The invention adopts the silicon detector and sets a high-pressure collecting electrode so as to improve the collecting efficiency of the radon and the detection sensitivity and accuracy of apparatus.

46. Radon gas in the environment, particles of the fire-resistant material asbestos and air pollution also increase the risk.

47. The radon migration in uranium prospecting surveyed is discussed with a newly-developed method. The action of "relay transmission" presented is the main way of radon migration.

48. Analysis and modeling of statistical distributions of indoor radon concentration from data valorization to mapping and simulations are critical issues for real decision-making processes.

49. The main factors of radiation hazards in uranium mines are radioactive dust, radon and its daughters.

50. An estimate of the global distribution of radon emissions from the ocean.

51. This paper describes the results of Dec. 1986 and Jul. 1988 radon intercomparison exercises for the balloon method.

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

53. Generally, indoor radon is the main source of construction materials, such as granite, tile and plaster, particularly the stones containing radioelement Yi release radon.

54. Radon can cause lung cancer, leukemia, albinism and other pathological changes in respiratory tract.

55. This method can be used for measuring not only the thoron in exhaled air, but also the radon and thoron in environmental air.

56. We have showed that the Radon transform of the cross Wigner distribution function is a separable multiplication of fractional Fourier transform of these functions.

57. INTERNAL CAUSES OF RADON AND ITS DAUGHTERS UPWARD MIGRATION AND CLUSTER PHENOMENON.

58. The environment Radon logger FD 216 is an instantaneous surveying instrument in situ.

59. Noble gas( or inert gas ):Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.

60. There radon concentrations will severalfold to hundred times increasing when using spring water in the hotel rooms.

61. In order to deal with the sideward influences, "X" interferences and other linear interferences, the Radon transform can be used to process the ground penetrating radar (GPR) profile.

62. The anomalies are analyzed with sliding mean and secondary function method. The results show that the medium term anomalies of radon are corresponding well with the two events.

63. A scintillation cell is a detector which is often used in measuring radon.

64. When radon gas emitted as springs, very quickly, a phenomenon opal.

65. It was successfully used to automatically determine the concentrations of radon and thoron daughters in air.

66. A radioactive, inert, gaseous isotope of radon a half - life of 3.92 seconds.

67. Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.

68. Radon concentration in groundwater was measured at 18 points including two continuous recording stations.

69. The radon exhalation rate is used as the basic factor of radon geological potential.

70. The authors also studied the continuous self-recording technique by using the ionization method to measure the Radon gas.

71. The average outdoor radon level varies between 5 and 15 Bq/m3 [Radon radioactivity is measured in Becquerel (Bq).

72. The charcoal coil monitor for radon 222 Rn in air is calculated and analysed.

73. Radon concentration in air is measured by the number of transformations per second in a cubic metre of air (Bq/m3)].

74. Objective Study on radon pollution in tunnel and protection from the radiation.

75. Indoor environment for thousands of varieties of hazardous substances, the most important are : radon, radioelement , formaldehyde, benzene, ammonia, PVC,(http:///radon.html) nitrogen oxides and carbon oxides.

76. Most countries have adopted an indoor air radon concentration of 200–400 Bq/m3 as a reference level above which mitigation measures should be taken.

77. To improve the detectable limit of radioactive aerosol monitors, it is very important to eliminate the interference of the natural background, i. e. radon and thoron daughter aerosol.

78. Radon is known to be harmful to humans in large quantities.

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