Had lunch yet? How about a nice big juicy radioactive tuna fish sandwich!
Eating the fish is not harmful to humans, researchers have told the Christian Science Monitor, but it may be a good idea to bring a Geiger Counter to your neighborhood sandwich shop just in case. Lack of curiosity can kill the cat, even though for humans ignorance is often bliss.
“Small amounts” of cesium-137 and cesium-134 released from Japan’s Fukushima nuclear plant turned up in tunas snagged off the California coast near San Diego last August. That’s four months after the chemicals were released into the Pacific.
The Japanese used water to cool the nuclear reactors and millions of gallons of runoff went right into the ocean.
Cesium-134 breaks down fairly quickly and ceseium-137 breaks down after a few thousand years, so everything should be back to normal by about 5012.
ABC News, covering the tuna story last year, reported: “Japan’s nuclear crisis is an ocean away — unless you’re a tuna, the kind that ends up in cans of tuna fish across the United States.
“Every spring the torpedo-shaped tuna leaves the waters off Japan, swimming at speeds of 50 miles and hour to the waters off Oregon and Washington, arriving in late summer. By the time it gets there, it may have spent time in some of the most radioactive water on Earth.”
Daniel Madigan of Stanford University told The Monitor: “I wouldn’t tell anyone what’s safe to eat or what’s not safe to eat. It’s become clear that some people feel that any amount of radioactivity, in their minds, is bad and they’d like to avoid it. But compared to what’s there naturally … and what’s established as safety limits, it’s not a large amount at all.”
The bluefin tuna already has low levels of natural radioactivity — potassium 40. Levels of this chemical have increased about 3 percent, according to Madigan. No big deal, maybe.
But what happens if you eat a tuna fish sandwich right before going through a screening booth at the airport? Will your body light up on screen like a Christmas tree?
You’ll know when you’re walking passed the security people and one of them asks you: “Hey! How was the tuna sandwich?”
Photo: Tuna salad sandwich via Flickr.com





