Home radiometry results

 after testing house for radiation October 16

Our house and garden seems to be around 0.11-0.14 microsieverts/hr, according to my friend's dosimeter. It's lower as you go up closer to the roof and eaves, not higher as with some houses. Inside is not much different than outside. We tested the sandbox in the park and at the daycare next door, and it was about the same.

He has found 0.2, 0.3, and 0.4 in Chiba. In one case a house in Matsudo had those numbers for the first, second floor, and eaves, respectively. There is a spot along the river in Noda-shi where he measures 0.4. The hot spot in Andersen Park was 0.5 microsieverts/hr. Reality is about 3 times the silly numbers the gov't reports as seen at http://www.japantimes.co.jp/radiation-levels.html

I don't really need to strip all organic material and topsoil from the garden, because it is not any more or less radioactive than the surrounding area, and it would eventually become the same anyway. And if i did collect radioactivity in my rain catchment system, it was probably radioactive iodine, which would have decayed by now. Hot spots which exist in Chiba are about 6 miles or 10k north of here.