Strong alkaline detected from river where 11,000 young sweetfish found dead

On 4/3/2013, Fukushima Diary reported “Mass death of fish found in Shizuoka and Akita, reason not verified yet [URL]”

According to River and national road office of Ministry of Land, Infrastructure, Transport and Tourism in Hamamatsu, 11.0 pH was detected from the river water. The safety limit is 6.5 ~ 8.5 pH.

The highest reading was 11.0 pH on 4/1/2013, the lowest reading was 8.0 pH on 4/2/2013.

They detected COD (chemical oxygen demand) to be higher than the safety limit (8mg/L) at 5 of 8 measurements, but residual chlorine, total cyanide, 6-Cr were not detected.

It is not verified what caused the river water to become strongly alkaline.

 

↓ The location and the state of where young sweetfish were found dead.

Strong alkaline detected from river where 11,000 young sweetfish found dead

2 Strong alkaline detected from river where 11,000 young sweetfish found dead

 

3 Strong alkaline detected from river where 11,000 young sweetfish found dead

 

http://www.cbr.mlit.go.jp/hamamatsu/kisya/2013/20130403.html

http://www.cbr.mlit.go.jp/hamamatsu/kisya/2013/image/20130403.pdf

http://www.cbr.mlit.go.jp/hamamatsu/kisya/2013/image/20130402.pdf

 

 

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Français :

Des alcalins puissants dans le fleuve aux 10 000 ayus morts

 

Le 3 avril 2013, le Fukushima Diary rapportait “Mort de poissons en masse dans Shizuoka et Akita, la raison n’en est pas encore connue

Selon le bureau des Fleuves et des Voies Nationales du Ministère du Territoire, des Infrastructures, du Transport et du Tourisme d’Hamamatsu , un pH de 11.0 a été relevé dans l’eau du fleuve. Les limites de sécurité sont entre 6,5 et 8,5.

Le record de pH a été de 11 le 1er avril 2013, le plus bas était à 8 le lendemain.

Ils ont relevé une DBO (Demande Biologique en Oxygène) au-dessus de la limite de sécurité (8 mg/L) en 5 des 8 lieux de mesures mais ils n’ont pas relevé de chlore résiduel, ni de cyanures, ni de chrome 6.

On ne sait pas encore pourquoi la rivière est devenue aussi alcaline.

↓ Le lieu et l’état dans lequel les alevins d’ayus ont été trouvés morts.
Strong alkaline detected from river where 11,000 young sweetfish found dead

2 Strong alkaline detected from river where 11,000 young sweetfish found dead
3 Strong alkaline detected from river where 11,000 young sweetfish found dead

http://www.cbr.mlit.go.jp/hamamatsu/kisya/2013/20130403.html
http://www.cbr.mlit.go.jp/hamamatsu/kisya/2013/image/20130403.pdf
http://www.cbr.mlit.go.jp/hamamatsu/kisya/2013/image/20130402.pdf

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About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.

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