Could Radioactive Fukushima Debris Land at California?

Scientists who specialize in oceanic debris say yes, but admit we can't know for sure

fukujune28p.jpg

The fourth floor of Tokyo Electric Power Company's Fukushima Daiichi nuclear power plant's unit 4 reactor / Reuters

California scientists are warning that still-radioactive wreckage from the destroyed nuclear plant at Fukushima, Japan, could wash up on their state's shores. There are four things to understand here.

First, the physical debris from the nuclear disaster at Fukushima was radiated with iodine 131, which has a half-life of eight days and will be gone within about three months; and with cesium 137, which has a half-life of 30 years and is thought to increase rates of cancer.

Second, much of the radiated debris from Fukushima washed into the Pacific Ocean.

Third, there is an entire field of scientific research that focuses entirely on how debris moves, over months and years and centuries, within ocean currents. It's an esoteric field, but also a complicated one, taking into account all sorts of meteorological and geological systems we still don't quite understand.

And, fourth, ocean currents have slowly gathered decades of small and large trash from across the Pacific rim -- which includes many of the world's most populous nations -- into something called the "Great Pacific Garbage Patch," which also collects many of the thousands of shipping containers that fall into the ocean every year. Despite years of research, we still have an imperfect understanding of how the garbage patch works, how things get there, and what makes them leave.

So it's not guaranteed that radioactive Fukushima waste will show up at, say, Port Angeles. But when Seattle-based oceanographer Curt Ebbesmeyer told the northern California Times-Standard that debris was likely to hit the coast within two the three years -- when it will still be radioactive -- he wasn't just guessing. After half a century of studying the paths of Pacific flotsam, and the Great Pacific Garbage Patch, he knows what he's talking about. But, he added, weather is unpredictable, and "We know very little about the ocean."

The chance that Oregon beachcombers could one day stumble upon a radioactive girder or piece of concrete, however remote, underscores the risks inherent in nuclear energy. At this point, however, there's not much to do except buy stronger sunscreen.

Presented by

Max Fisher is a former writer and editor at The Atlantic.

Why Is Google Making Human Skin?

Hidden away on Google’s campus, doctors at a world-class life sciences lab are trying to change the way people think about their health.

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register with Disqus.

Please note that The Atlantic's account system is separate from our commenting system. To log in or register with The Atlantic, use the Sign In button at the top of every page.

blog comments powered by Disqus

Videos

Why Is Google Making Skin?

Hidden away on Google’s campus, doctors are changing the way people think about health.

Video

How to Build a Tornado

A Canadian inventor believes his tornado machine could solve the world's energy crisis.

Video

A New York City Minute, Frozen in Time

This short film takes you on a whirling tour of the Big Apple

Video

What Happened to the Milky Way?

Light pollution has taken away our ability to see the stars. Can we save the night sky?

Video

The Pentagon's $1.5 Trillion Mistake

The F-35 fighter jet was supposed to do everything. Instead, it can barely do anything.

More in Global

Just In