Edit: I know this is harsh, but the OP should realize their post is somewhere on the anti-vaxxer-Facebook-post-scale. It's somewhere around a millipost, but it registers on the scale.
What should the news flash say? "Run from the nearest banana, person, airplane, or mountain."
I'm really disappointed at your disappointment despite an absolute lack of critical thought on your part. What fraction of a banana would you have to eat in order to have the same effect? How many nights would you need to sleep next to someone instead of alone to get the same dose? How many minutes at 30,000 feet does that correspond to?
Back-of-the envelope calculations: the half life is about 8 days, remembering your infinite series from high school, 1/2 + 1/4 + 1/8 ... = 1. So, the total dose over an infinite time frame is the same as 2 half lives at the initial level, so 16 days = 1,382,400 at 1.5e-6 Bq/m^3 works out to about 2 decays per cubic meter over an infinite time frame.
Even assuming you absorbed any decay from 10 cubic meters of air around you, I'm too lazy to look up the difference in number of Joules between Iodine and Potassium decay and work out what fraction of a banana you'd have to eat to get the same dose, or how many days of sleeping next to someone that works out to, but even assuming at steady state you absorb every radioactive decay from 10 m^3 of air (gigantic over-estimate), this is an absolutely tiny dose.
The danger of someone panicking and accidentally overdosing on iodine, or suffering a heart attack/stroke from the increased stress following such a news announcement is almost certainly higher than the risk of someone getting cancer from this.
I live in Hong Kong, where a fair number of people in finance moved from Tokyo following the Fukushima disaster out of radiation concerns. The natural background radiation levels in Hong Kong are higher in Hong Kong by more than the additional radiation in Tokyo due to Fukushima.
You've done literally over a hundred things in the past 24 hours that pose much more danger to you than 1.5 uBq / m^3 of iodine decay.