There is panic across Japan, and in much of Asia, about the unfolding nuclear crisis in the island nation which was rocked last week by a disastrous quake and tsunami. People are worried about the radiation threat emanating from the damaged nuclear reactors in the Fukushima power plant. There are conflicting views about how murderous will be a possible reactor meltdown. Some have likened the crisis to the Chernobyl disaster while other see the threat less serious.

However, the everyday reality of mild-to-serious doses of harmful radiation that people everywhere in the world are exposed to pops into limelight only when a possible Armageddon shakes everyone up! Following is a sneak peek into some of the ways in which human beings are exposed to radiation in their everyday lives:

Here's what Health Physics Society says: Everything we encounter in our daily lives contains some radioactive material, some naturally occurring and some man-made: the air we breathe, the water we drink, the food we eat, the ground we walk upon, and the consumer products we purchase and use.

Sounds scary? Here's more:

SOURCES: Library Index; Health Physics Society;