How about Plutonium and Uranium Isotopes that are More Dangerous than the Gamma You are Measuring?

Can you please explain what you are doing about Plutonium and Uranium Isotopes from Fukushima that emit alpha radiation? I know that these isotopes are about 10 times more Dangerous than the Gamma radiation your device is able to measure. Thanks.

There has been no evidence

There has been no evidence of Pu or U from Fukushima here. They can be more dangerous because when ingested alphas are very damaging.