Wednesday, April 13, 2011

Nihonmatsu city and Kawamata city Caesium-137

 
3-29-11    After the 1986 Chernobyl accident, the most highly contaminated areas were defined as those with over 1490 kilobecquerels (kBq) of caesium per square metre. Produce from soil with 550 kBq/m2 was destroyed.

People living within 30 kilometres of the plant have evacuated or been advised to stay indoors. Since 18 March, MEXT has repeatedly found caesium levels above 550 kBq/m2 in an area some 45 kilometres wide lying 30 to 50 kilometres north-west of the (Fukushima) plant. The highest was 6400 kBq/m2, about 35 kilometres away, while caesium reached 1816 kBq/m2 in Nihonmatsu City and 1752 kBq/m2 in the town of Kawamata.      http://www.webcitation.org/5xZGE47q4 end quote. 
Nihonmatsu city and Kawamata city as of 3-29-11 had radiation at or above the highly contaminated areas around Chernobyl which was then at  1490 kilobecquerels (kBq) of caesium per square metre.
        1490 kBq/m2 Chernobyl in 1986

        1752 kBq/m2 in the town of Kawamata.
and
       1816 kBq/m2 in Nihonmatsu City and the highest reading then likely at the power plant itself of:
         The highest was 6400 kBq/m2   
             which is 4.29+ times the radioactive Cesium in 1986 around Chernobyl. Since radioactive Cesium has a long half life it will be present there a very long time. Caesium-137 It has a half-life of about 30.17 years.
What this means in real terms is that it will be full strength for 30.17 years, then 1/2 strength for 30.17 years then 1/4 strength for 30.17 years, and then 1/8 strength for 30.17 years etc.
Though it will keep doing that we have cesium in some dangerous form for at the very least
120.68 years in these locations in Japan. So likely no one will be able to "safely" live there for at least that long. So those with property might eventually have their great great grandchildren want to live there if they want to live very dangerously.
begin quote from wikipedia:

Nihonmatsu, Fukushima

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Nihonmatsu
二本松市
—  City  —
Location of Nihonmatsu in Fukushima

Nihonmatsu is located in Japan
Nihonmatsu
 
Coordinates: 37°35′N 140°26′E / 37.583°N 140.433°E / 37.583; 140.433Coordinates: 37°35′N 140°26′E / 37.583°N 140.433°E / 37.583; 140.433
Country Japan
Region Tōhoku
Prefecture Fukushima
Government
 - Mayor Keiichi Miho
Area
 - Total 344.65 km2 (133.1 sq mi)
Population (October 1, 2008)
 - Total 61,137
 - Density 177/km2 (458.4/sq mi)
Time zone Japan Standard Time (UTC+9)
City symbols
- Tree Sakura
- Flower Chrysanthemum
- Bird Japanese Bush-warbler
Phone number 0243-23-1111
Address 403-1 Kanairo, Nihonmatsu-shi, Fukushima-ken
964-8601
Website Nihonmatsu City

A view over a pond
Nihonmatsu (二本松市 Nihonmatsu-shi?) is a city located in Fukushima, Japan.
As of October 2008, the city has an estimated population of 61,137 with a density of 177 persons per km². The total area is 344.65 km².
The city was founded on October 1, 1958.

Contents

[hide]

[edit] Geography

Nihonmatsu's Western border consists of the Adatara mountain range. The Abukuma River runs through the eastern part (formerly Towa Town), flowing from south to north.

[edit] History

  • 1955/01/01 - The town of Nihonmatsu merges with the villages of Shiozawa, Dakeshita, Sugita, Ishii and Ohdaira to form the new Town of Nihonmatsu.
  • 1958/10/01 - Nihonmatsu is upgraded from Town to City status.
  • 2005/12/01 - Nihonmatsu and the surrounding towns of Adachi, Iwashiro and Tōwa, all from Adach District, are amalgamated to form the current City of Nihonmatsu.

[edit] Tourism

Begin quote from Wikipedia:


Location of Kawamata in Fukushima prefecture

Bronze statue of Ōtomo no Koteko at Kawamata
Kawamata (川俣町 Kawamata-machi?) is a town located in Date District, Fukushima, Japan.
As of 2003, the town has an estimated population of 17,248 and a density of 135.11 persons per km². The total area is 127.66 km².
The town is known for its production of silk and silk products. In the late 6th century, Ōtomo no Koteko, also known as Otehime, came to this area. According to tradition, she is honored for having encouraged silk farming in the area.[1]
The town is also known for shamo (a special breed of game bird, very similar to chicken), and the Cosquín en Japón festival, featuring traditional Argentinian music.

[edit] References

  1. ^ Kawamata municipal website: Silk products Retrieved 25 October 2010. (Japanese)

[edit] External links

Coordinates: 37°39′54″N 140°35′54″E / 37.665°N 140.59833°E / 37.665; 140.59833


          

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