Quantcast
Environmental News for a Healthier Planet and Life

Help Support EcoWatch

Fukushima Radioactive Plume to Hit the U.S. by 2014

Energy

CleanTechnica

By Nathan August

The first radioactive ocean plume released by the Fukushima nuclear power plant disaster will finally be reaching the shores of the U.S. sometime in 2014, according to a new study from the University of New South Wales—a full three or so years after the date of the disaster.

Surface (0–200m) of Cesium-137 concentrations (Bq/m3) by (a)April 2012, (b) April 2014 (c) April 2016 and (d) April 2021. Image Credit: University of New South Wales

Many researchers, and also officials from the World Health Organization (WHO), have argued that the radioactive particles that do make their way to the U.S. will have a very limited effect on human health—as the concentration of radioactive material in U.S. waters will be well below WHO safety levels. But needless to say, there is some debate on this matter…

For the new work, the researchers utilized a number of different ocean simulations to track the path of the radiation from the Fukushima incident—the models used have identified the most likely path that the plume will take over the next ten years.

“Observers on the west coast of the U.S. will be able to see a measurable increase in radioactive material three years after the event,” stated study author Dr. Erik van Sebille. “However, people on those coastlines should not be concerned as the concentration of radioactive material quickly drops below World Health Organization safety levels as soon as it leaves Japanese waters.”

The University of New South Wales has more:

Two energetic currents off the Japanese coast—the Kuroshio Current and the Kurushio Extension—are primarily responsible for accelerating the dilution of the radioactive material, taking it well below WHO safety levels within four months.

Eddies and giant whirlpools—some tens of kilometers wide—and other currents in the open ocean continue this dilution process and direct the radioactive particles to different areas along the U.S. west coast.

Interestingly, the great majority of the radioactive material will stay in the North Pacific, with very little crossing south of the Equator in the first decade. Eventually over a number of decades, a measurable but otherwise harmless signature of the radiation will spread into other ocean basins, particularly the Indian and South Pacific oceans.

“Although some uncertainties remain around the total amount released and the likely concentrations that would be observed, we have shown unambiguously that the contact with the north-west American coasts will not be identical everywhere,” stated Dr. Vincent Rossi.

“Shelf waters north of 45°N will experience higher concentrations during a shorter period, when compared to the Californian coast. This late but prolonged exposure is due to the three-dimensional pathways of the plume. The plume will be forced down deeper into the ocean toward the subtropics before rising up again along the southern Californian shelf.”

“Australia and other countries in the Southern Hemisphere will see little if any radioactive material in their coastal waters and certainly not at levels to cause concern,” Dr. van Sebille continued.

Those interested in doing so can track the path of the radiation on a website created by the researchers.

The new research was just published new in the journal Deep-Sea Research 1.

Visit EcoWatch’s NUCLEAR page for more related news on this topic.

——–

EcoWatch Daily Newsletter

The Anderson Community Group. Left to right, Caroline Laur, Anita Foust, the Rev. Bryon Shoffner, and Bill Compton, came together to fight for environmental justice in their community. Anderson Community Group

By Isabella Garcia

On Thanksgiving Day 2019, right after Caroline Laur had finished giving thanks for her home, a neighbor at church told her that a company had submitted permit requests to build an asphalt plant in their community. The plans indicated the plant would be 250 feet from Laur's backdoor.

Read More Show Less
Berber woman cooks traditional flatbread using an earthen oven in her mud-walled village home located near the historic village of Ait Benhaddou in Morocco, Africa on Jan. 4, 2016. Creative Touch Imaging Ltd. /NurPhoto / Getty Images

By Danielle Nierenberg and Jason Flatt

The world's Indigenous Peoples face severe and disproportionate rates of food insecurity. While Indigenous Peoples comprise 5 percent of the world's population, they account for 15 percent of the world's poor, according to the World Health Organization.

Read More Show Less
Danny Choo / CC BY-SA 2.0

By Olivia Sullivan

One of the many unfortunate outcomes of the coronavirus pandemic has been the quick and obvious increase in single-use plastic products. After COVID-19 arrived in the United States, many grocery stores prohibited customers from using reusable bags, coffee shops banned reusable mugs, and takeout food with plastic forks and knives became the new normal.

Read More Show Less
A mostly empty 110 freeway toward downtown Los Angeles, California on April 28, 2020. Robert Gauthier / Los Angeles Times via Getty Images

The shelter in place orders that brought clean skies to some of the world's most polluted cities and saw greenhouse gas emissions plummet were just a temporary relief that provided an illusory benefit to the long-term consequences of the climate crisis. According to new research, the COVID-19 lockdowns will have a "neglible" impact on global warming, as Newshub in New Zealand reported.

Read More Show Less
Centrosaurus apertus was a plant-eating, single-horned dinosaur that lived 76 to 77 million years ago. Sergey Krasovskiy / Stocktrek Images / Getty Images

Scientists have discovered and diagnosed the first instance of malignant cancer in a dinosaur, and they did so by using modern medical techniques. They published their results earlier this week in The Lancet Oncology.

Read More Show Less
Parks keep people happy in times of global crisis, economic shutdown and public anger. NPS

By Joe Roman and Taylor Ricketts

The COVID-19 pandemic in the United States is the deepest and longest period of malaise in a dozen years. Our colleagues at the University of Vermont have concluded this by analyzing posts on Twitter. The Vermont Complex Systems Center studies 50 million tweets a day, scoring the "happiness" of people's words to monitor the national mood. That mood today is at its lowest point since 2008 when they started this project.

Read More Show Less

Trending

The ubiquity of guns and bullets poses environmental risks. Contaminants in bullets include lead, copper, zinc, antimony and mercury. gorancakmazovic / iStock / Getty Images Plus

New York State Attorney General Letitia James announced Thursday that she will attempt to dismantle the National Rifle Association (NRA), arguing that years of corruption and mismanagement warrant the dissolution of the activist organization, as CNN reported.

Read More Show Less