Nuclear fallout shelter
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A fallout shelter is an enclosed space specially designated to protect occupants from radioactive debris or
fallout Nuclear fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and the shock wave has passed. It commonly refers to the radioac ...
resulting from a
nuclear explosion A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission or nuclear fusion or a multi-stage cascading combination of the two, ...
. Many such shelters were constructed as
civil defense Civil defense ( en, region=gb, civil defence) or civil protection is an effort to protect the citizens of a state (generally non-combatants) from man-made and natural disasters. It uses the principles of emergency operations: prevention, mit ...
measures during the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
. During a nuclear explosion, matter vaporized in the resulting fireball is exposed to neutrons from the explosion, absorbs them, and becomes
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consi ...
. When this material condenses in the rain, it forms dust and light sandy materials that resemble ground
pumice Pumice (), called pumicite in its powdered or dust form, is a volcanic rock that consists of highly vesicular rough-textured volcanic glass, which may or may not contain crystals. It is typically light-colored. Scoria is another vesicular v ...
. The fallout emits
alpha Alpha (uppercase , lowercase ; grc, ἄλφα, ''álpha'', or ell, άλφα, álfa) is the first letter of the Greek alphabet. In the system of Greek numerals, it has a value of one. Alpha is derived from the Phoenician letter aleph , whi ...
and
beta particle A beta particle, also called beta ray or beta radiation (symbol β), is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay. There are two forms of beta decay, Π...
s, as well as
gamma ray A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically ...
s. Much of this highly radioactive material falls to Earth, subjecting anything within the line of sight to radiation, becoming a significant
hazard A hazard is a potential source of harm. Substances, events, or circumstances can constitute hazards when their nature would allow them, even just theoretically, to cause damage to health, life, property, or any other interest of value. The probab ...
. A fallout shelter is designed to allow its occupants to minimize exposure to harmful fallout until radioactivity has decayed to a safer level.


History


North America

During the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
, many countries built fallout shelters for high-ranking government officials and crucial military facilities, such as Project Greek Island and the
Cheyenne Mountain nuclear bunker The Cheyenne Mountain Complex is a Space Force installation and defensive bunker located in unincorporated El Paso County, Colorado, next to the city of Colorado Springs, at the Cheyenne Mountain Space Force Station, which hosts the activities of ...
in the United States and Canada's
Emergency Government Headquarters Emergency Government Headquarters is the name given for a system of nuclear fallout shelters built by the Government of Canada in the 1950s and 1960s as part of continuity of government planning at the height of the Cold War. Situated at str ...
. Plans were made, however, to use existing buildings with sturdy below-ground-level basements as makeshift fallout shelters. These buildings were
placard A placard is a notice installed in a public place, like a small card, sign, or plaque. It can be attached to or hung from a vehicle or building A building, or edifice, is an enclosed structure with a roof and walls standing more or less perma ...
ed with the orange-yellow and black
trefoil A trefoil () is a graphic form composed of the outline of three overlapping rings, used in architecture and Christian symbolism, among other areas. The term is also applied to other symbols with a threefold shape. A similar shape with four ring ...
sign designed by
United States Army Corps of Engineers , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...
director of administrative logistics support function Robert W. Blakeley in 1961. The
National Emergency Alarm Repeater The National Emergency Alarm Repeater (NEAR) was a civilian emergency warning device in the United States. It was a 2–3" (5–7.5 cm) square box designed to plug into a standard power outlet to receive a special signal sent over the electri ...
(NEAR) program was developed in the United States in 1956 during the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
to supplement the existing siren
warning systems Warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger. Its purpose is to enable the deployer of the warning system to prepare for the danger and act accordingly to mitigat ...
and radio broadcasts in the event of a
nuclear attack Nuclear warfare, also known as atomic warfare, is a theoretical military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear ...
. The NEAR civilian alarm device was engineered and tested but the program was not viable and was terminated in 1967. In the U.S. in September 1961, under the direction of Steuart L. Pittman, the federal government started the Community Fallout Shelter Program. A letter from
President Kennedy John Fitzgerald Kennedy (May 29, 1917 – November 22, 1963), often referred to by his initials JFK and the nickname Jack, was an American politician who served as the 35th president of the United States from 1961 until assassination of Joh ...
advising the use of fallout shelters appeared in the September 1961 issue of ''
Life Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from that which does not, and is defined by the capacity for growth, reaction to stimuli, metabolism, energy ...
'' magazine. Over the period 1961-1963, there was a growth in home fallout shelter sales, but eventually there was a public backlash against the fallout shelter as a consumer product. In November 1961, in ''
Fortune Fortune may refer to: General * Fortuna or Fortune, the Roman goddess of luck * Luck * Wealth * Fortune, a prediction made in fortune-telling * Fortune, in a fortune cookie Arts and entertainment Film and television * ''The Fortune'' (1931 film) ...
'' magazine, an article by Gilbert Burck appeared that outlined the plans of
Nelson Rockefeller Nelson Aldrich Rockefeller (July 8, 1908 – January 26, 1979), sometimes referred to by his nickname Rocky, was an American businessman and politician who served as the 41st vice president of the United States from 1974 to 1977. A member of t ...
,
Edward Teller Edward Teller ( hu, Teller Ede; January 15, 1908 – September 9, 2003) was a Hungarian-American theoretical physicist who is known colloquially as "the father of the hydrogen bomb" (see the Teller–Ulam design), although he did not care for ...
, Herman Kahn, and Chet Holifield for an enormous network of concrete-lined underground fallout shelters throughout the United States sufficient to shelter millions of people to serve as a refuge in case of
nuclear war Nuclear warfare, also known as atomic warfare, is a theoretical military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear wa ...
. The United States ended federal funding for the shelters in the 1970s. In 2017, New York City began removing the yellow signs since members of the public are unlikely to find edible food and usable medicine inside those rooms.


Atomitat

The
Atomitat Atomitat (1962) was an underground bunker-home in Plainview, Texas, designed by architect Jay Swayze. The name of the home came from the combination of the words "atomic" and "habitat". It was the first home in the U.S. to meet civil defense spec ...
was an underground house in
Plainview, Texas Plainview is a city in and the county seat of Hale County, Texas, United States. As of the 2010 census, the population was 22,194. Geography Plainview is located at (34.191204, –101.718806) and is located on the Llano Estacado. According ...
: it was designed by
Jay Swayze Julian Harvey "Jay" Swayze (27 October 1923 – 12 June 1981) was an architect from Plainview, Texas best known for his creation of Underground World Home at the 1964 New York World's Fair. During his career he was a promoter of underground liv ...
and completed in 1962. The house was designed in response to the fear of nuclear war during the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
. The house was designed to be an "atomic-habitat" which met the United States Civil Defense specifications. It was the first bunker-house to meet their specifications as a nuclear shelter. Swayze also build an underground house for the
1964 New York World's Fair The 1964–1965 New York World's Fair was a world's fair that held over 140 pavilions and 110 restaurants, representing 80 nations (hosted by 37), 24 US states, and over 45 corporations with the goal and the final result of building exhibits or ...
: it was called the
Underground World Home Underground World Home was a home designed for the 1964 New York World's Fair by architect Jay Swayze. The home-exhibit was in Flushing Meadow Park in Queens and appeared to be a luxury bomb shelter which was marketed as secure and safe. Histo ...
.


Europe

Similar projects have been undertaken in
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bot ...
, which requires all buildings with area over 600 m² to have an NBC (nuclear-biological-chemical) shelter, and
Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of ...
, which requires all buildings with an area over 1000 m² to have a shelter. The former
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
and other Eastern Bloc countries often designed their underground mass-transit and subway tunnels to serve as bomb and fallout shelters in the event of an attack. Currently, the deepest subway line in the world is situated in
St Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
in
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
, with an average depth of 60 meters, while the deepest subway station is Arsenalna in
Kyiv Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe. Ky ...
, at 105.5 meters. Germany has protected shelters for 3% of its population, Austria for 30%, Finland for 70%, Sweden for 81%, and Switzerland for 114%.


Switzerland

Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
built an extensive network of fallout shelters, not only through extra hardening of government buildings such as schools, but also through a building regulation requiring nuclear shelters in residential buildings since the 1960s (the first legal basis in this sense dates from 4 October 1963). Catherine Frammery
"Dans les entrailles du Sonnenberg, monstrueux témoin de la Guerre froide"
''
Le temps ''Le Temps'' ( literally "The Time") is a Swiss French-language daily newspaper published in Berliner format in Geneva by Le Temps SA. It is the sole nationwide French-language non-specialised daily newspaper of Switzerland. Since 2021, it has ...
'', Monday 15 August 2016 (page visited on 15 August 2015).
Later, the law ensured that all residential buildings built after 1978 contained a nuclear shelter able to withstand a blast from a 12-megaton explosion at a distance of 700 metres. The ''Federal Law on the Protection of the Population and Civil Protection'' still requires that every inhabitant should have a place in a shelter close to where they live. Daniele Mariani
"À chacun son bunker"
Swissinfo SWI swissinfo.ch is a multilingual Multilingualism is the use of more than one language, either by an individual speaker or by a group of speakers. It is believed that multilingual speakers outnumber monolingual speakers in the wor ...
, 23 October 2009 (page visited on 5 August 2015).
The Swiss authorities maintained large communal shelters (such as the Sonnenberg Tunnel until 2006) stocked with over four months of food and fuel. The reference '' Nuclear War Survival Skills'' declared that, as of 1986, "Switzerland has the best civil defense system, one that already includes blast shelters for over 85% of all its citizens." As of 2006, there were about 300,000 shelters built in private residences, institutions and hospitals, as well as 5,100 public shelters for a total of 8.6 million places, a level of coverage equal to 114% of the population. In Switzerland, most residential shelters are no longer stocked with the food and water required for prolonged habitation and a large number have been converted by the owners to other uses (e.g.,
wine cellar A wine cellar is a storage room for wine in bottles or barrels, or more rarely in carboys, amphorae, or plastic containers. In an ''active'' wine cellar, important factors such as temperature and humidity are maintained by a climate control system ...
s, ski rooms, gyms). But the owner still has the obligation to ensure the maintenance of the shelter.


Details of shelter construction


Shielding

A basic fallout shelter consists of shields that reduce gamma ray exposure by a factor of 1000. The required shielding can be accomplished with 10 times the thickness of any quantity of material capable of cutting gamma ray exposure in half. Shields that reduce gamma ray intensity by 50% (1/2) include of lead, of concrete, of packed earth or of air. When multiple thicknesses are built, the shielding multiplies. Thus, a practical fallout shield is ten halving-thicknesses of packed earth, reducing gamma rays by approximately 1024 times (210). Usually, an expedient purpose-built fallout shelter is a trench; with a strong roof buried by 1 m (3 ft) of earth. The two ends of the trench have ramps or entrances at right angles to the trench, so that gamma rays cannot enter (they can travel only in straight lines). To make the overburden waterproof (in case of rain), a plastic sheet may be buried a few inches below the surface and held down with rocks or bricks. Blast doors are designed to absorb the shock wave of a nuclear blast, bending and then returning to their original shape.


Climate control

Dry earth is a reasonably good thermal insulator, and over several weeks of habitation, a shelter will become dangerously hot. The simplest form of effective fan to cool a shelter is a wide, heavy frame with flaps that swing in the shelter's doorway and can be swung from hinges on the ceiling. The flaps open in one direction and close in the other, pumping air. (This is a Kearny air pump, or KAP, named after the inventor,
Cresson Kearny Cresson Henry Kearny (; – ) wrote several survival-related books based primarily on research performed at Oak Ridge National Laboratory. Career Kearny attended Texas Military Institute in the 1930s, where he became the commanding officer of th ...
) Unfiltered air is safe, since the most dangerous fallout has the consistency of sand or finely ground pumice. Such large particles are not easily ingested into the soft tissues of the body, so extensive filters are not required. Any exposure to fine dust is far less hazardous than exposure to the fallout outside the shelter. Dust fine enough to pass the entrance will probably pass through the shelter. Some shelters, however, incorporate
NBC The National Broadcasting Company (NBC) is an American English-language commercial broadcast television and radio network. The flagship property of the NBC Entertainment division of NBCUniversal, a division of Comcast, its headquarters are l ...
-filters for additional protection.


Locations

Effective public shelters can be the middle floors of some tall buildings or parking structures, or below ground level in most buildings with more than 10 floors. The thickness of the upper floors must form an effective shield, and the windows of the sheltered area must not view fallout-covered ground that is closer than 1.5 km (1 mi). One of Switzerland's solutions is to use road tunnels passing through the mountains, with some of these shelters being able to protect tens of thousands. Fallout shelters are not always underground. Above ground buildings with walls and roofs dense enough to afford a meaningful protection factor can be used as a fallout shelter.


Contents

A battery-powered radio may be helpful to get reports of fallout patterns and clearance. However, radio and other electronic equipment may be disabled by
electromagnetic pulse An electromagnetic pulse (EMP), also a transient electromagnetic disturbance (TED), is a brief burst of electromagnetic energy. Depending upon the source, the origin of an EMP can be natural or artificial, and can occur as an electromagnetic f ...
. For example, even at the height of the Cold War, EMP protection had been completed for only 125 of the approximately 2,771 radio stations in the United States Emergency Broadcast System. Also, only 110 of 3,000 existing Emergency Operating Centers had been protected against EMP effects. The Emergency Broadcast System has since been supplanted in the United States by the
Emergency Alert System The Emergency Alert System (EAS) is a national warning system in the United States designed to allow authorized officials to broadcast emergency alerts and warning messages to the public via cable, satellite, or broadcast television, and bot ...
. The reference '' Nuclear War Survival Skills'' includes the following supplies in a list of "Minimum Pre-Crisis Preparations": one or more shovels, a pick, a bow-saw with an extra blade, a hammer, and polyethylene film (also any necessary nails, wire, etc.); a homemade shelter-ventilating pump (a KAP); large containers for water; a plastic bottle of sodium hypochlorite bleach; one or two KFMs (Kearny fallout meters) and the knowledge to operate them; at least a 2-week supply of compact, nonperishable food; an efficient portable stove; wooden matches in a waterproof container; essential containers and utensils for storing, transporting, and cooking food; a hose-vented can, with heavy plastic bags for liners, for use as a toilet; tampons; insect screen and fly bait; any special medications needed by family members; pure
potassium iodide Potassium iodide is a chemical compound, medication, and dietary supplement. It is a medication used for treating hyperthyroidism, in radiation emergencies, and for protecting the thyroid gland when certain types of radiopharmaceuticals are u ...
, a bottle, and a medicine dropper; a first-aid kit and a tube of antibiotic ointment; long-burning candles (with small wicks) sufficient for at least 14 nights; an oil lamp; a flashlight and extra batteries; and a transistor radio with extra batteries and a metal box to protect it from electromagnetic pulse. Inhabitants should have water on hand, per person per day. Water stored in bulk containers requires less space than water stored in smaller bottles.


Kearny fallout meter

Commercially made
Geiger counter A Geiger counter (also known as a Geiger–Müller counter) is an electronic instrument used for detecting and measuring ionizing radiation. It is widely used in applications such as radiation dosimetry, radiological protection, experimental p ...
s are expensive and require frequent calibration. It is possible to construct an
electrometer An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical handmade mechanical instruments to high-precision electronic devices. Modern ...
-type radiation meter called the
Kearny fallout meter The Kearny fallout meter, or KFM, is an expedient radiation meter. It is designed such that someone with a normal mechanical ability would be able to construct it before or during a nuclear attack, using common household items. The Kearny fallo ...
, which does not require batteries or professional calibration, from properly-scaled plans with just a coffee can or pail, gypsum board, monofilament fishing line, and aluminum foil. Plans are freely available in the public domain in the reference '' Nuclear War Survival Skills'' by
Cresson Kearny Cresson Henry Kearny (; – ) wrote several survival-related books based primarily on research performed at Oak Ridge National Laboratory. Career Kearny attended Texas Military Institute in the 1930s, where he became the commanding officer of th ...
.


Use

Inhabitants should plan to remain sheltered for at least two weeks (with an hour out at the end of the first week â€“ see Swiss Civil Defense guidelines), then work outside for gradually increasing amounts of time, to four hours a day at three weeks. The normal work is to sweep or wash fallout into shallow trenches to decontaminate the area. They should sleep in a shelter for several months. Evacuation at three weeks is recommended by official authorities. If available, inhabitants may take
potassium iodide Potassium iodide is a chemical compound, medication, and dietary supplement. It is a medication used for treating hyperthyroidism, in radiation emergencies, and for protecting the thyroid gland when certain types of radiopharmaceuticals are u ...
at the rate of 130 mg/day per adult (65 mg/day per child) as an additional measure to protect the thyroid gland from the uptake of dangerous radioactive iodine, a component of most fallout and reactor waste.


Different types of radiation emitted by fallout


Alpha (α)

In the vast majority of accidents, and in all
atomic bomb A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bomb ...
blasts, the threat due to beta and gamma emitters is greater than that posed by the alpha emitters in the fallout. Alpha particles are identical to a helium-4 nucleus (two protons and two neutrons), and travel at speeds in excess of 5% of the speed of light.
Alpha particle Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay, but may also be prod ...
s have little penetrating power; most cannot penetrate through human skin. Avoiding direct exposure with fallout particles will prevent injury from alpha radiation.


Beta (β)

Beta radiation A beta particle, also called beta ray or beta radiation (symbol β), is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay. There are two forms of beta decay, β∠...
consists of particles (high-speed electrons) given off by some fallout. Most beta particles cannot penetrate more than about of air or about of water, wood, or human body tissue; or a sheet of aluminum foil. Avoiding direct exposure with fallout particles will prevent most injuries from beta radiation. The primary dangers associated with beta radiation are internal exposure from ingested fallout particles and beta burns from fallout particles no more than a few days old.
Beta burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The mos ...
s can result from contact with highly radioactive particles on bare skin; ordinary clothing separating fresh fallout particles from the skin can provide significant shielding.


Gamma (γ)

Gamma radiation A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically s ...
penetrates further through matter than alpha or beta radiation. Most of the design of a typical fallout shelter is intended to protect against gamma rays. Gamma rays are better absorbed by materials with high atomic numbers and high density, although neither effect is important compared to the total mass per area in the path of the gamma ray. Thus, lead is only modestly better as a gamma shield than an equal mass of another shielding material such as aluminum, concrete, water or soil. Some gamma radiation from fallout will penetrate into even the best shelters. However, the radiation dose received while inside a shelter can be significantly reduced with proper shielding. Ten halving thicknesses of a given material can reduce gamma exposure to less than of unshielded exposure.


Weapons versus nuclear accident fallout

The bulk of the radioactivity in nuclear accident fallout is more long-lived than that in weapons fallout. A good table of the
nuclide A nuclide (or nucleide, from atomic nucleus, nucleus, also known as nuclear species) is a class of atoms characterized by their number of protons, ''Z'', their number of neutrons, ''N'', and their nuclear energy state. The word ''nuclide'' was co ...
s, such as that provided by the
Korean Atomic Energy Research Institute The University of Science and Technology (UST) is a group of public universities and research institutions in Seoul, Suwon, Changwon, Ansan, Seongnam and Daejeon, in South Korea. The UST was established in 2003 by the Ministry of Science, ICT an ...
, includes the fission yields of the different nuclides. From this data it is possible to calculate the isotopic mixture in the fallout (due to
fission products Nuclear fission products are the atomic fragments left after a large atomic nucleus undergoes nuclear fission. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons, the release ...
in bomb fallout).


Other matters and simple improvements

While a person's home may not be a purpose-made shelter, it could be thought of as one if measures are taken to improve the degree of
fallout protection ''Fallout Protection: What To Know And Do About Nuclear Attack'' was an official United States federal government booklet released in December 1961 by the United States Department of Defense and the Office of Civil Defense. The first page of the b ...
.


Measures to lower the beta dose

The main threat of
beta radiation A beta particle, also called beta ray or beta radiation (symbol β), is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay. There are two forms of beta decay, β∠...
exposure comes from '' hot particles'' in contact with or close to the skin of a person. Also, swallowed or inhaled hot particles could cause
beta burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The mos ...
s. As it is important to avoid bringing hot particles into the shelter, one option is to remove one's outer clothing, or follow other decontamination procedures, on entry. Fallout particles will cease to be radioactive enough to cause beta burns within a few days following a nuclear explosion. The danger of gamma radiation will persist for far longer than the threat of beta burns in areas with heavy fallout exposure.


Measures to lower the gamma dose rate

The gamma dose rate due to the contamination brought into the shelter on the clothing of a person is likely to be small (by wartime standards) compared to
gamma radiation A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically s ...
that penetrates through the walls of the shelter. The following measures can be taken to reduce the amount of gamma radiation entering the shelter: * Roofs and gutters can be cleaned to lower the dose rate in the house. * The top inch of soil in the area near the house can be either removed or dug up and mixed with the
subsoil Subsoil is the layer of soil under the topsoil on the surface of the ground. Like topsoil, it is composed of a variable mixture of small particles such as sand, silt and clay, but with a much lower percentage of organic matter and humus, and ...
. This reduces the dose rate as the gamma rays have to pass through the topsoil before they can irradiate anything above. * Nearby roads can be rinsed and washed down to remove dust and debris; the
fallout Nuclear fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and the shock wave has passed. It commonly refers to the radioac ...
would collect in the sewers and gutters for easier disposal. In
Kyiv Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe. Ky ...
after the
Chernobyl accident The Chernobyl disaster was a nuclear accident that occurred on 26 April 1986 at the No. 4 reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR in the Soviet Union. It is one of only two nucl ...
a program of road washing was used to control the spread of radioactivity. * Windows can be bricked up, or the sill raised to reduce the hole in the shielding formed by the wall. * Gaps in the shielding can be blocked using containers of water. While water has a much lower density than that of lead, it is still able to shield some gamma rays. * Earth (or other dense material) can be heaped up against the exposed walls of the building; this forces the gamma rays to pass through a thicker layer of shielding before entering the house. * Nearby trees can be removed to reduce the dose due to fallout which is on the branches and leaves. It has been suggested by the US government that a fallout shelter should not be dug close to trees for this reason.


Fallout shelters in popular culture

Fallout shelters feature prominently in the Robert A. Heinlein novel ''
Farnham's Freehold ''Farnham's Freehold'' is a science fiction novel by American writer Robert A. Heinlein. A serialised version, edited by Frederik Pohl, appeared in ''Worlds of If'' magazine (July, August, October 1964). The complete version was published in nove ...
'' (Heinlein built a fairly extensive shelter near his home in
Colorado Springs Colorado Springs is a home rule municipality in, and the county seat of, El Paso County, Colorado, United States. It is the largest city in El Paso County, with a population of 478,961 at the 2020 United States Census, a 15.02% increase since ...
in 1963), ''Pulling Through'' by
Dean Ing Dean Charles Ing (June 17, 1931 – July 21, 2020) was an American author, who usually wrote in the science fiction and techno-thriller genres. His novel ''The Ransom of Black Stealth One'' (1989) was a ''New York Times'' bestseller. He wrote ...
, ''
A Canticle for Leibowitz ''A Canticle for Leibowitz'' is a post-apocalyptic social science fiction novel by American writer Walter M. Miller Jr., first published in 1959. Set in a Catholic monastery in the desert of the southwestern United States after a devastating ...
'' by Walter M. Miller and ''
Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's sur ...
'' by David Brin. The 1961 '' Twilight Zone'' episode " The Shelter", from a
Rod Serling Rodman Edward Serling (December 25, 1924 – June 28, 1975) was an American screenwriter, playwright, television producer, and narrator/on-screen host, best known for his live television dramas of the 1950s and his anthology television series ...
script, deals with the consequences of actually using a shelter. Another episode of the series called "
One More Pallbearer " One More Pallbearer" is episode 82 of the American television anthology series '' The Twilight Zone'', and was the 17th episode of the third season. The episode originally aired on January 12, 1962, was written by series creator/showrunner Rod ...
" featured a fallout shelter owned by a millionaire. The 1985 adaption of the series had the episode " Shelter Skelter" that featured a fallout shelter. In the ''
Only Fools and Horses ''Only Fools and Horses....'' is a British television sitcom created and written by John Sullivan (writer), John Sullivan. Seven series were originally broadcast on BBC One in the United Kingdom from 1981 to 1991, with sixteen sporadic Christmas ...
'' episode " The Russians are Coming", aired in 1981, Derek Trotter buys a lead fallout shelter, then decides to construct it in fear of an impending nuclear war caused by the Soviet Union. In 1999, the film '' Blast from the Past'' was released. It is a
romantic comedy Romantic comedy (also known as romcom or rom-com) is a subgenre of comedy and slice of life fiction, focusing on lighthearted, humorous plot lines centered on romantic ideas, such as how true love is able to surmount most obstacles. In a typic ...
film about a
nuclear physicist Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies the ...
, his wife, and son that enter a well-equipped, spacious fallout shelter during the 1962
Cuban Missile Crisis The Cuban Missile Crisis, also known as the October Crisis (of 1962) ( es, Crisis de Octubre) in Cuba, the Caribbean Crisis () in Russia, or the Missile Scare, was a 35-day (16 October – 20 November 1962) confrontation between the United S ...
. They do not emerge until 35 years later, in 1997. The film shows their reaction to contemporary society. The ''Fallout'' series of computer games depicts the remains of human civilization after an immensely destructive global nuclear war; the United States of America had built underground vaults that were advertised to protect the population against a nuclear attack, but almost all of them were in fact meant to lure subjects for long-term human experimentation. ''
Paranoia Paranoia is an instinct or thought process that is believed to be heavily influenced by anxiety or fear, often to the point of delusion and irrationality. Paranoid thinking typically includes persecutory beliefs, or beliefs of conspiracy c ...
'', a role-playing game, takes place in a city-sized fallout shelter, which has become ruled by an insane computer. An episode of the sitcom ''
Malcolm in the Middle ''Malcolm in the Middle'' is an American family television sitcom created by Linwood Boomer for Fox. The series premiered on January 9, 2000, and ended on May 14, 2006, after seven seasons and 151 episodes. The series follows a dysfunction ...
'' features a subplot revolving around Reese and Dewey discovering a previously unknown fallout shelter in their backyard and trapping their father Hal in it, who soon becomes smitten with the shelter's 1960's decor. The ''
Metro 2033 Metro 2033 may refer to: * ''Metro 2033'' (novel), a 2002 novel by Russian author Dmitry Glukhovsky * ''Metro 2033'' (video game), a 2010 first-person shooter video game based on the novel See also * ''Metro'' (franchise), originating from t ...
'' book series by Russian author Dmitry Glukhovsky depicts survivors' life in the subway systems below Moscow and Saint-Petersburg after a nuclear exchange between the Russian Federation and the United States of America. Fallout shelters are often featured on the reality television show ''
Doomsday Preppers ''Doomsday Preppers'' was an American reality television series that aired on the National Geographic Channel from 2011 to 2014. The program profiles various survivalists, or "preppers", who are preparing to survive the various circumstances th ...
''. The Silo series of novellas by Hugh Howey feature extensive fallout-style shelters that protect the inhabitants from an initially unknown disaster. The 2019 US film ''
The Tomorrow Man ''The Tomorrow Man'' is a 2019 American drama film written and directed by Noble Jones, in his directorial debut. It stars John Lithgow, Blythe Danner, Derek Cecil, Katie Aselton, Sophie Thatcher, and Eve Harlow. It had its world premiere at the ...
'' centers around a reclusive man whose main preoccupation is tending to his in-home fallout shelter and the conspiracy theories that could put it to use.


See also

* Abo Elementary School * Ark Two Shelter *
Blast shelter A blast shelter is a place where people can go to protect themselves from blasts and explosions, like those from bombs, or in hazardous worksites, such as on oil and gas refineries or petrochemical facilities. It differs from a fallout shelter, ...
*
Bomb shelter A bomb shelter is a structure designed to provide protection against the effects of a bomb. Types of shelter Different kinds of bomb shelters are configured to protect against different kinds of attack and strengths of hostile explosives. Air ...
*
Bunker A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs, artillery, or other attacks. Bunkers are almost always underground, in contrast to blockhouses which are mostly above ground. T ...
* Bruce D. Clayton, author of ''Fallout Survival'' and ''Life After Doomsday'' * Collective protection *
Command center A command center (often called a war room) is any place that is used to provide centralized command for some purpose. While frequently considered to be a military facility, these can be used in many other cases by governments or businesses ...
*
CONELRAD CONELRAD (''Control of Electromagnetic Radiation'') was a method of emergency broadcasting to the public of the United States in the event of enemy attack during the Cold War. It was intended to allow continuous broadcast of civil defense inform ...
*
Continuity of government Continuity of government (COG) is the principle of establishing defined procedures that allow a government to continue its essential operations in case of a catastrophic event such as nuclear war. COG was developed by the British government befo ...
* Project Greek Island *
Vivos (underground shelter) Vivos (also known as The Vivos Group) is a California-based company founded by Robert Vicino, building hardened underground shelters designed to withstand future disasters and life-extinction catastrophes. Shelters have been completed in Indiana, ...
Nation specific: *
Central Government War Headquarters The Central Government War Headquarters (CGWHQ) is a complex built underground as the United Kingdom's emergency government war headquarters – the hub of the country's alternative seat of power outside London during a nuclear war or conflict ...
, The UKs Gov. War Headquarters at Corsham, Wiltshire. *
Diefenbunker The Diefenbunker, formerly known by its military designation, Canadian Forces Station Carp (CFS Carp), is a large underground four-storey reinforced concrete bunker and nuclear fallout shelter located in the rural area of Carp, Ontario approxim ...
*
HANDEL George Frideric (or Frederick) Handel (; baptised , ; 23 February 1685 – 14 April 1759) was a German-British Baroque composer well known for his operas, oratorios, anthems, concerti grossi, and organ concertos. Handel received his training i ...
, UK's former national attack warning system General: *
Fission product Nuclear fission products are the atomic fragments left after a large atomic nucleus undergoes nuclear fission. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons, the release ...
*
Retreat (survivalism) In the survivalist subculture or movement, a retreat is a place of refuge. Sometimes their retreats are called a bug-out location (BOL), a bunker, or a bolt hole. Survivalist retreats are intended to be self-sufficient and easily defended. Gen ...
* Sonnenberg Tunnel *
Survivalism Survivalism is a social movement of individuals or groups (called survivalists or preppers) who proactively prepare for emergencies, such as natural disasters, as well as other disasters causing disruption to social order (that is, civil disor ...
Publications: * ''
Fallout Protection ''Fallout Protection: What To Know And Do About Nuclear Attack'' was an official United States federal government booklet released in December 1961 by the United States Department of Defense and the Office of Civil Defense. The first page of the b ...
'' * ''
Survival Under Atomic Attack ''Survival Under Atomic Attack'' was the title of an official United States government booklet released by the Executive Office of the President, the National Security Resources Board (document 130), and the Civil Defense Office. Released at t ...
'' * '' Nuclear War Survival Skills''


Notes and references


Further reading

* Rose, Kenneth D., ''One Nation Underground: The Fallout Shelter in American Culture'',
New York University Press New York University Press (or NYU Press) is a university press that is part of New York University. History NYU Press was founded in 1916 by the then chancellor of NYU, Elmer Ellsworth Brown. Directors * Arthur Huntington Nason, 1916–1 ...
(2004),


External links


Nuclear War Survival Skills
{{DEFAULTSORT:Fallout Shelter Air raid shelters Cold War sites Nuclear warfare Radioactivity Radiobiology Subterranea (geography) Survivalism Radiation protection Nuclear fallout