Chernobyl


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Chernobyl: Three Mile Island, Pripyat

Chernobyl

(chĭrnō`byēl), Ukr. Chornobyl, abandoned city, N Ukraine, near the Belarus border, on the Pripyat River. Ten miles (16 km) to the north, in the town of Pripyat, is the Chernobyl nuclear power station, site of the worst nuclear reactor disaster in history. On Apr. 25, 1986, during an unauthorized test of one of the plant's four reactors, engineers initiated an uncontrolled chain reaction in the core of the reactor after disabling emergency backup systems. On Apr. 26, an explosion ripped the top off the containment building, expelling radioactive material into the atmosphere; more was released in the subsequent fire. Only after Swedish instruments detected fallout from the explosion did Soviet authorities admit that an accident had occurred. The reactor core was sealed off by air-dropping a cement mixture, but not before eight tons of radioactive material had escaped. Subsequently, the damaged reactor building was enclosed in a concrete and steel "sacrophagus," a massive structure that was constructed around it.

Twenty firefighters died immediately from overexposure to radioactivity, while hundreds suffered from severe radiation sickness. Pripyat, Chernobyl, and nearby towns were evacuated. People who lived near the plant in Ukraine and Belarus at the time have seen a greatly increased incidence of thyroid cancer, and genetic mutations have been discovered in children later born to exposed parents. Nearly all thyroid cancer cases, however, were successfully treated. Ukraine has estimated that some 4,400 people died as a result of the accident and during its cleanup, but a 2005 report prepared by several UN agencies and regional governments indicated that some 50 deaths were directly attributable to radiation from the disaster and an estimated 4,000 deaths might ultimately result from it, mainly due to higher cancer rates. That prediction was challenged the following year by a Greenpeace report that said more than 90,000 deaths might result, roughly half of which would be due to conditions other than cancer. The agricultural economies of E and N Europe were temporarily devastated, as farm products were contaminated by fallout. One Chernobyl reactor remained in operation until Dec., 2000, when the complex was shut down.

An exclusion zone encompassing the areas of highest radiation and including some 1,000 sq mi (2,600 sq km) was ultimately established, but many population centers outside the area were also abandoned. More than 90,000 people were relocated, though a few illegally returned. Wildlife in the area, however, has reestablished itself, flourishing to some degree in the absence of human activity. In 2016 a new confinement structure was placed over the entombed reactor.

Bibliography

See S. Alexievich, Voices from Chernobyl (2005); S. Plokhy, Chernobyl: The History of a Nuclear Catastrophe (2018).

Chernobyl’

 

a city (since 1841) and administrative center of Chernobyl’ Raion, Kiev Oblast, Ukrainian SSR. Situated on the Pripiat’ River, 18 km from the Ianov railroad station on the Chernigov-Ovruch line. Chernobyl’, a river landing, has an iron foundry, a cheese plant, a ship-repair dock, and a workshop of an artistic production association. The city has a medical school.

Chernobyl

a town in N Ukraine; site of a nuclear power station accident in 1986
References in periodicals archive ?
Bridget Charlton with the group of children from Chernobyl who are showing off their trainers
The lack of interest by the nuclear industry in providing reliable information on the consequences of Chernobyl and Fukushima should not be ignored.
• Rate of thyroid cancer in the contaminated areas surrounding Chernobyl is more than 400 times the world norm.
The researchers fear that the history of lost opportunities to better understand the effects of radiation on life during the Chernobyl catastrophe in 1986 was largely being replayed in Fukushima.
People are being sought who can host Chernobyl children for two or four weeks, help by providing daytime activities, arrange social or play events, donate or collect good-quality secondhand clothing suitable for boys and girls aged eight to 14 years and help with fundraising.
Contamination of more than 40,000 becquerels of cesium was found in soil in Norway, some 1,700 km away from the Chernobyl plant.
Estimates put further investment by 2015 for a new safe confinement for Unit 4 at the Chernobyl plant at some 600 million.
4 reactor at the Chernobyl plant, then in the Soviet Union, exploded and caught fire after a safety test experiment went badly wrong.
May 1, recorded as one of the days that the fallout from Chernobyl over Bulgaria was at its heaviest.
VISAGINAS, Lithuania -- An HBO miniseries featuring Soviet-era nuclear nightmares has sparked global interest in the 1986 Chernobyl disaster and boosted tourism in Lithuania.
tale of the nuclear The disaster at Chernobyl is compelling and terrifying.