Fukushima Pollution Found Seeping into Ocean in Unexpected Way

Radioactive cesium from the Fukushima Daiichi nuclear power plant has been flowing into the ocean since an earthquake and tsunami caused a meltdown of its three reactors in 2011. Scientists at the Woods Hole Oceanographic Institution and Kanazawa University have discovered a new way cesium is traveling from the power plant site into the ocean and to groundwater miles away.

The discovery, published in the Proceedings of the National Academy of Sciences on Oct. 2, applies not only to Fukushima, but also has implications for the approximately 440 coastal nuclear power plants around the world.

When cesium entered the ocean from the coastal Fukushima plant in 2011, currents spread it far and wide along the coast. What scientists didn’t realize until now is that the sand could act as a sponge, soaking up and storing the cesium. Sand on the beaches, and even the sand below the surface which is in contact with groundwater, has thus been contaminated with cesium.

Furthermore, new waves and tides have brought salty seawater in contact with this contaminated sand. The salt water acts as a solvent, releasing the cesium from the sand and washing it back into the ocean.

A file photo of Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima Prefecture, Japan. (Kyodo News via AP)
A file photo of beaches contaminated from the Fukushima Dai-ichi Nuclear Power Plant disaster in 2011. (Souichiro Teriyaki/Kanazawa University)
A file photo of beaches contaminated from the Fukushima Dai-ichi Nuclear Power Plant disaster in 2011. (Souichiro Teriyaki/Kanazawa University)

This newly discovered path of pollution adds as much cesium to the ocean as the two other known sources— continued releases and runoff from the plant site, and outflow from contaminated rivers.

Cesium has a 30-year half life, so it will likely take decades for the cesium from Fukushima to diffuse and decay, explained one of the study authors, Ken Buesseler, via email. “All that can be done now is to wait,” he said.

“The cesium is already there. Not much can be done or really needs to be done other than make a better survey of several more beaches in a systematic way,” Buesseler said.

The scientists reported that this is not a public health concern, since no one is drinking or exposed to the contaminated water. But, Buesseler said, other coastal plants need to consider this finding in their monitoring of normal operations, and in preparations for any future accidents: “Certainly nuclear fuel reprocessing plants, such as Sellafield [in the UK] and Cap de la Hague [in France] release cesium during normal operations. I’d expect ‘downstream’ beaches to have accumulated cesium in a similar way.”

Coastal power plants in the United States have already raised concerns, as rising sea levels threaten to submerge them. The Fukushima disaster has shown the world what can happen when coastal plants encounter trouble. At least four nuclear plants in the United States are vulnerable to storm surges by 2050, according to a 2015 analysis by the Union of Concerned Scientists that assumes that global warming is occurring, raising sea levels.

Although the ocean contamination from Fukushima has dispersed enough that some scientists have said it will not have major environmental or health impacts, some worry that a little radiation here, combined with a little radiation there, could eventually add up to a problem.

(Natalie Renier, Woods Hole Oceanographic Institution)

From The Epoch Times

 
 
 
 
 

Stock Market Added $5.2 Trillion in Value Since Trump’s Election

Stock Market Added $5.2 Trillion in Value Since Trump’s Election
Positive economic indicators coupled with the pro-growth policies of President Donald Trump have fueled business sentiment and investor ...
READ MORE >
 
US

Trump Slams NFL for Not Making Players Stand for Anthem

Trump Slams NFL for Not Making Players Stand for Anthem
U.S. President Donald Trump criticized the National Football League on Wednesday for not forcing players to stand for ...
READ MORE >
 

Russia Increasing Pressure on North Korea

Russia Increasing Pressure on North Korea
North Korea is finding itself increasingly isolated as Russia and China have joined the United States in imposing ...
READ MORE >
 

With Loss of Raqqa, the ISIS ‘Caliphate’ is Ending

With Loss of Raqqa, the ISIS ‘Caliphate’ is Ending
The ISIS terrorist group is losing one of the last strongholds of its proclaimed "caliphate," as coalition forces ...
READ MORE >
 

7 home remedies for hair loss

7 home remedies for hair loss
Hair experts say that losing 50 to 100 strands of hair each day is normal, but anything more ...
READ MORE >