Hi Adam,
I am about to take delivery of a brand new Nissan X-trail. It was built in April. It may not have been on the boat in the news, but my partner is concerned that it may be contaminated. She is actually less concerned than I am to be frank.
I believe one of the Nissan plants was close to the f*kushima site was the Iwate plant. This site was important as far as some V6 engines were concerned. I do not know whether X-Trail bits were made there or where a complete X-trail would be sourced from so i am in the same boat as you are.
I have found several radiation detectors on the market of which one is supplied to schools.
My background has made me inquisitive about nuclear physics and as such I was going to buy a detector before the whole Japan crisis, but the one I was going to buy was not available due to high demand due to the f*kushima situation.
I then tried to buy one in Australia, but was quoted over $3000 which was way above the $1000 and even $500 I saw overseas..
The next step was to look for something more reasonable and I found a $600 unit.
Will try to source it in the morning and will also be calling ARPANSA to see what they say as my vehicle snuk in before the testing.
I may be able to lend it to you if you like, I need to test mine before Thu.
I have been to Japan and feel very sorry for the Japanese and looking at their predicament it seems we are overreacting, but let's be clear that limits have been set as far as radiation levels are concerned and we should not compromise just because levels elsewhre are unavoidable.
Hope I can help.
I don't know why the f*kushuma has the * in it when i preview it, but I cannot remove it, it is meant to read as you wrote it.
J