Techa
The Techa is a river on the eastern flank of the southern Ural Mountains noted for its nuclear contamination. It is 243 kilometres (151 mi) long, and its basin covers 7,600 square kilometres (2,900 sq mi).[1] It begins at the formerly secret nuclear-processing town of Ozyorsk about 80 kilometres (50 mi) northwest of Chelyabinsk and flows northeast to Dalmatovo on the Iset, a tributary of the Tobol. Its basin is enclosed on the southeast by that of the Miass, another river that flows northeast into the Iset.
Techa | |
---|---|
Location | |
Country | Russia |
Physical characteristics | |
Mouth | Iset |
• coordinates | 55.7686°N 60.7339°E |
Length | 243 km (151 mi) |
Basin size | 7,600 km2 (2,900 sq mi) |
Basin features | |
Progression | Iset→ Tobol→ Irtysh→ Ob→ Kara Sea |
Water pollution
From 1949 to 1956 the Mayak complex[2] dumped an estimated 76 million cubic metres (2.7×109 cu ft) of radioactive waste water into the Techa River,[3] a cumulative dispersal of 2.75 MCi (102 PBq) of radioactivity.[4]
As many as forty villages, with a combined population of about 28,000 residents, lined the river at the time.[5] For 24 of them, the Techa was a major source of water; 23 of them were eventually evacuated.[6] In the past 45 years, about half a million people in the region have been irradiated in one or more of the incidents,[5][7] exposing them to as much as 20 times the radiation suffered by the Chernobyl disaster victims.[3]
See also
References
- Река Теча in the State Water Register of Russia (Russian)
- Techa River Archived 11 September 2007 at the Wayback Machine
- CHELYABINSK "The Most Contaminated Spot on the Planet" - a documentary film by Slawomir Grunberg - Log In Productions - distributed by LogTV LTD
- Pike, John. "Chelyabinsk-65 / Ozersk Combine 817 / Production Association Mayak". GlobalSecurity.org. Retrieved 29 September 2010.
- Radioactive Contamination of the Techa River and its Effects
- Clay, Rebecca (April 2001). "Cold War, Hot Nukes: Legacy of an Era". Environmental Health Perspectives. National Institute of Environmental Health Sciences. 109 (4): a162–a169. doi:10.1289/ehp.109-a162. PMC 1240291. PMID 11335195. Archived from the original on 2 June 2010. Retrieved 29 September 2010.
- Zaitchik, Alexander (8 October 2007). "Inside the Zone". The Exile. Retrieved 29 September 2010.