APAKAH MAKSUD RADON dalam CORSICA?
Radon
Radon adalah unsur kimia dengan simbol Rn dan nombor atom 86. Ia adalah gas mulia radioaktif, tidak berwarna, tidak berbau, tidak enak, yang berlaku secara semulajadi sebagai produk pembusukan tak langsung dari uranium atau thorium. Isotop yang paling stabil, 222Rn, mempunyai separuh hayat 3.8 hari. Radon adalah salah satu bahan yang paling padat yang kekal sebagai gas di bawah keadaan biasa. Ia juga merupakan satu-satunya gas dalam keadaan normal yang hanya mempunyai isotop radioaktif, dan dianggap sebagai bahaya kesihatan kerana radioaktifnya. Radioaktif yang sengit juga telah menghalang kajian kimia radon dan hanya beberapa sebatian yang diketahui. Radon dibentuk sebagai satu langkah perantaraan dalam rantai kerosakan radioaktif biasa, di mana torium dan uranium perlahan-lahan merosakkan ke dalam plumbum. Thorium dan uranium adalah dua elemen radioaktif yang paling biasa di bumi; mereka telah wujud sejak bumi dibentuk. Isotop semulajadi mereka mempunyai separuh hayat yang panjang, mengikut urutan berbilion tahun. Thorium dan uranium, radium produk kerosakan dan radon produk pembusukannya, maka akan terus berlaku selama puluhan juta tahun pada hampir kepekatan yang sama seperti yang mereka lakukan sekarang.
Definisi radon dalam kamus Corsica
Takrif radon dalam kamus adalah unsur radioaktif yang tidak berwarna dari kumpulan gas jarang, isotop yang paling stabil di mana, radon-222, adalah produk pelarut radium. Ia digunakan sebagai sumber zarah alfa dalam radioterapi. Simbol: Rn; atom tidak: 86; separuh hayat 222Rn: 3.82 hari; valensi: 0; ketumpatan: 9.73 kg / m³; lebur pt: -71 ° C; mendidih pt: -61.7 ° C.
CORSICA BUKU YANG BERKAIT DENGAN «RADON»
Ketahui penggunaan
radon dalam pilihan bibliografi berikut. Buku yang berkait dengan
radon dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
Explores the element of Radon and its uses.
Both historical and SI (International System) units are used throughout the book to provide information for the widest range of readers. Thanks go to Tom Hess for the idea for this volume and to Jessica Barron for help in editing.
C.Richard Cothern, James E. Smith,
1987
3
The
Radon Transform and Some of Its Applications
Of value to mathematicians, physicists, and engineers, this excellent introduction covers both theory and applications, including a rich array of examples and literature. Revised and updated by the author. 1993 edition.
Stanley Roderick Deans,
2007
4
Radon Integrals: An Abstract Approach to Integration and ...
In topological measure theory, Radon measures are the most important objects.
Bernd Anger, C. Portenier,
1992
5
The Noble Gases: Helium, Neon, Argon, Krypton, Xenon,
Radon
Introduces the Noble Gases and teaches how these elements are connected, found, used, and structured.
This second edition, significantly expanded and updated, presents new material taking into account some of the progress made in the field since 1980.
7
Radon in the Environment
This book is intended to fill a gap in our knowledge of radon concentration in the outdoor atmosphere as well as to provide results of previously published indoor measurements.
8
WHO Handbook on Indoor
Radon: A Public Health Perspective
This handbook focuses on residential radon exposure from a public health point of view and provides detailed recommendations on reducing health risks from radon and sound policy options for preventing and mitigating radon exposure.
World Health Organization,
2009
9
Radon, Radium, and Uranium in Drinking Water
With new regulations for radionuclides in drinking water, this volume will be valuable for understanding where radionuclides come from, how their prescence is determined, where humans come in contact with them, health effects consequences ...
This new book focuses on sampling and analysis, radon and radium in water supply wells, predictive models, geologic and hydrogeologic controls that influence radon occurrence, monitoring radon and other radioactivity from geologic sources ...
National Water Well Assoc.,
1987
BARANGAN BERITA YANG TERMASUK TERMA «RADON»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
radon digunakan dalam konteks perkara berita berikut.
Increases in Radon Concentration Shown to Track Fracking Activity
Indoor radon levels in Pennsylvania have been slowly rising since 2004, around the time that unconventional natural gas development using hydraulic fracturing ... «Gizmodo, Apr 15»
Study suggests fracking could release radon from ground
Levels of cancer-causing radon gas in Pennsylvania homes have increased as the fracking industry has expanded, a new study shows. The study is a ... «USA TODAY, Apr 15»
Saginaw Health Department offering free radon test kits in January
SAGINAW, MI — Saginaw County Department of Public Health has free radon test kits available during the month of January. These do-it-yourself test kits are ... «MLive.com, Jan 15»
With radon on the rise, DEP urging homeowners to test their homes
CHRISTOPHER DOLAN / THE CITIZENS' VOICE Matt Lyons of Avoca-based Disaster Blaster offers a close-up view of a radon mitigation fan. The company's ... «Scranton Times-Tribune, Jan 15»
It's Time to Get Serious About Harmful Radon Exposure
Radon, a naturally-occurring invisible gas, is the second leading cause of lung cancer after smoking. Twenty-one thousand Americans die from radon-induced ... «Huffington Post, Jan 15»
Macomb County Health Department has free radon test kits available
The Macomb County Health Department is encouraging residents to test their homes for radon and has free test kits available. Radon is colorless, odorless, ... «The Macomb Daily, Jan 15»
January 2015 is National Radon Action Month
January is National Radon Action Month. Approximately 21,000 Americans lives are claimed each year from lung cancer due to radon. One in 15 homes ... «Asbury Park Press, Jan 15»
Vancouver-area homes at high risk of radon, geological gas that …
The research, published in January during Radon Action Month, found a high or moderate risk of radon in 3,159 homes, from Vancouver and Camas to La ... «OregonLive.com, Jan 15»
Radon reduction work grows in Minnesota
More Minnesotans are fixing up their homes to reduce the level of cancer-causing radon gas, partly because of a year-old state law governing real estate sales. «Minneapolis Star Tribune, Dis 14»
Radon gas levels in homes need to be checked, lung cancer experts …
Radon, a colourless and odourless gas emitted through soil, is believed to be responsible for 16 per cent of lung cancer deaths in the country each year, making ... «CBC.ca, Nov 14»