The vice principal of the elementary school said, "As an activity to promote love for the school, 5th and 6th graders participated in the cleaning." The school didn't think of the radiation contamination then. The city's Board of Education instructed the principals of the city's schools on May 25 to pay attention to the health of pupils when cleaning the swimming pools, but by that time 4 schools including this elementary school had already had pupils clean the pools.
It was disclosed that 17,020 becquerels per kilogram of radioactive cesium was detected from the dirt that were scooped out from the swimming pool when the teachers and pupils of one public elementary schools in Joso City did the cleaning of the pool in May. The amount is more than twice the safety limit set by the Ministry of the Environment for the radioactive debris that could be buried. The school moved the dirt in a separate area. Upon this news, the city's Board of Education surveyed the situation of the pool dirt in city's elementary schools and junior high schools on July 4, and found out there were 4 other elementary schools who had kept the dirt on the school premises.
How could the school not think of radiation contamination, when the radioactive plume from Fukushima I Nuke Plant was constantly blowing over Ibaraki Prefecture and the air radiation level remains elevated? (I guess the vice principal didn't have access to the Internet to take a look at those foreign meteorological agencies' simulations...)
No matter. Cleaning is over now anyway, and the rest of the schools didn't even keep the dirt. But the pool water is clean, I'm sure.
But since when the dirt that contains that much radioactive cesium can be disposed as "industrial waste", instead of nuclear waste?
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