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Radon is responsible for the majority of public exposure to ionizing radiation. It is often the single largest contributor to an individual's background radiation dose, and is the most variable from location to location. Radon gas from natural sources can accumulate in buildings, especially in confined areas such as attics and basements.
Radon removal from water supplies may be at a treatment plant, point of entry, or point of use. Public water supplies in the United States were required to treat for radionuclides beginning in 2003 but private wells are not regulated by the federal government as of 2014. The radon can be captured by granular activated charcoal (GAR) or released ...
It has since become one of the leading sources of user-generated reviews and ratings for businesses. Yelp grew in usage and raised several rounds of funding in the following years. By 2010, it had $30 million in revenue, and the website had published about 4.5 million crowd-sourced reviews. From 2009 to 2012, Yelp expanded throughout Europe and ...
Radon concentration can differ widely from place to place. In the open air, it ranges from 1 to 100 Bq/m 3, even less (0.1 Bq/m 3) above the ocean. In caves or ventilated mines, or poorly ventilated houses, its concentration climbs to 20–2,000 Bq/m 3. [79] Radon concentration can be much higher in mining contexts.
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Historic American Engineering Record (HAER) No. NJ-121, "United States Radium Corporation, 422-432 Alden Street, Orange, Essex County, NJ", 3 photos, 98 data pages, 2 photo caption pages HAER No. NJ-121-A, " United States Radium Corporation, Paint Application Building ", 8 photos, 16 data pages, 3 photo caption pages
Radon-222 (222 Rn, Rn-222, historically radium emanation or radon) is the most stable isotope of radon, with a half-life of approximately 3.8 days. It is transient in the decay chain of primordial uranium-238 and is the immediate decay product of radium-226 .
Craig Carpenito (born 1973), former United States Attorney for the District of New Jersey [173] Nick Dini (born 1993), catcher for the Kansas City Royals [174] Peter P. Garibaldi (1931–2023), politician who served as mayor of Monroe Township, in the New Jersey General Assembly from 1968 to 1974 and in the New Jersey Senate from 1984 to 1988 [175]