An average value is around 30 mrem a year, though this can be much less along the coasts, around half as much. And it can be twice as much in states such as Colorado.If you live in Atlantic City you get about 15 mrem a year, year after year. (That's if you don't hang on the beach.)If you live in certain parts of the world, like certain villages in India and Brazil that have high levels of thorium in local sands, the dose rate can be much higher. Kerala, India and Minas Garais, Brazil has rates of around 1,000 mrem a year.
-- http://www.blackcatsystems.com/GM/safe_radiation.html
But if you live in the coastal south-west India area of Kerala you get 67 times that day after day. In other words you get TWO MONTHS of RADIATION IN ONE DAY!
THE SKY IS FALLING! THE SKY IS FALLING!
Again...I see questions and speculation, not panic or terror. If you think this thread is full of misinformation, hit the abuse button.