Yes, there is reason to be concerned. First here are the statements made by Toyota and JAMA:
Toyota Motor Corporation — for the safety and peace of mind of its customers and other concerned parties — has started measuring the radiation levels of its export vehicles, parts for overseas assembly and service parts," said Toyota in a statement. "As a result, it has found that such radiation levels are no different than that of the surrounding air, meaning there is no danger to human health."
The announcement was made in tandem with the Japan Automobile Manufacturers Association (JAMA), which announced it "has initiated its own procedures to test the radiation levels of vehicles produced in Japan." JAMA said it has "enlisted the expertise of an external authority specializing in the field." JAMA said the new tests "are conducted directly on various designated areas of the surface of vehicles." Thus far, the "results fall within the range designated by the Nuclear Safety Commission of Japan as being unthreatening to human health," said JAMA in a statement signed by its chairman, Toshiyuki Shiga, on Monday
First, Toyota never stated what the radiation level was in the surronding air. So you don't really know how bad the surronding air was when the readings were taken. So the radiation in the new vehicles could have in fact been pretty bad.
JAMA is clearly stating in their statement that radiation does exist on these vehicles but it falls within a safe range. But the medical community for years has stated there is no safe level of radiation.
Something that no one has considered are the "hot particles" that are not easily detected with Geiger Counters (the devices used to test these cars). Hot particles are very very dangersous when inhaled or digested.
The only way to check these cars are by testing the air filters and really taking samples from the surface of the interior and exterior of these cars. That isn't being done.
So at the end of the day, there are limitations to radiation detection instruments. You can't just use one instrument and assume you are safeguarding yourself or customers .
At the end of the day, these cars from Japan have radiation. According to Toyota and JAMA there are only low level radiation.
But at the end of the day, I would rather have a car with NO radiation vs. LOW radiation.
Its just an unnecessary risk! I hope NO ONE purchased a car built in Japan since March 11, 2011. It is too risky! Why take that risk?