Thousand small fish found dead in Kasumi river Tokyo


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On 7/17/2012, around one thousand of small fish such as Japanese dace were found dead for 500m of Kasumi river Aoume city Tokyo.
A citizen reported it to the city office at 17:15 of 7/17/2012.
According to their water-quality test, oxygen concentration is normal, chlorine or cyanogen were not detected.
Tokyo metropolitan government is going to check if a factory dumped waste water or agricultural chemical in the upper stream.

Last November, about 5000 of small fish such as Japanese dace were found dead at the same location too, but they could not identify the cause either.






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