How everything went so wrong at Fukushima

The makings of a two-and-a-half-year nuclear disaster

Topics: Nuclear Power, Fukushima, Japan, Japan Earthquake, Japanese tsunami, ,

How everything went so wrong at FukushimaFukushima Dai-ichi nuclear power plant is flooded as a tsunami strikes (Credit: AP/Anonymous)

This week, alarming news has been pouring out of Japan’s Fukushima Daiichi nuclear power plant, two and a half years after it was first damaged in a natural disaster. As we’re now learning, more problems have been building beneath Fukushima’s surface, to a far greater extent than officials have been willing to acknowledge until now, when the severity of the situation has become impossible to ignore.

On March 11, 2011, a magnitude 9 earthquake struck offshore Japan. More than 19,000 people died as the tsunami it caused engulfed Japan’s largest island, a little more than 100 miles north of Tokyo.

Amid concern for the massive death and destruction, reports emerged of a second unfolding catastrophe in the tsunami’s wake. Electricity had been knocked out at the Fukushima Daiichi Nuclear Power Plant, and the backup diesel generators meant to cool the plant’s nuclear reactors had flooded. Over the first three days following the tsunami, all three nuclear cores melted. On days 4 to 6, they began to release unknown amounts of radiation. The main task became containing it, and evacuating more than 160,000 residents from the vicinity. Many have yet to return home.

The nuclear disaster — the largest since Chernobyl in 1986 — was classified as a “major accident,” the highest score possible on The International Nuclear and Radiological Event Scale (INES). At first its effects paled in comparison to the immediate death toll and damage caused by the earthquake and tsunami. Within two weeks, the three reactors were stable. By July, they were being cooled with recycled water from a new treatment plant. In mid-December, they officially reached “cold shutdown,” meaning active cooling was no longer necessary to keep the reactors safe. A World Health Organization report released earlier this year concluded that the predicted health risks for the general population were low.



Beneath the surface, however, the situation was far from contained. The plant’s operator, Tokyo Electric Power Company, or Tepco, had “rigged a makeshift system of pipes and hoses” to continue cooling the reactors. From the beginning, that contaminated water has been leaking. As much as possible was contained in the plant’s storage tanks, but some made its way into the sea. For the past two and a half years, a “massive underground reservoir” of contaminated water has been building up underneath the plant. Tepco is widely alleged to have not done enough to contain it.

The slow, seeping buildup of a second catastrophe came to a head this summer. On July 10, Japan’s nuclear watchdog announced it “highly suspected” that the plant was leaking contaminated water into the ocean. Tepco didn’t acknowledge what was happening until July 22; a full month after initial suspicions were raised. A month later, the watchdog again announced that the contaminated groundwater had breached a barrier meant to contain it. The Japanese government officially stepped in to help.

Since then, a new, acute disaster has complicated the situation further. Earlier this week, a new leak erupted from one of the plant’s storage tanks, releasing 300 tons of contaminated water into the soil and potentially, through storm drains, into the Pacific. For the first time since 2011, Fukushima again scored on the INES scale, although this time it was only Level 1, an anomaly. The Nuclear Regulation Authority is considering an upgrade to Level 3, a serious incident. (Seven is the highest score possible.) As an advisory panel revealed yesterday, Tepco was warned this was coming back in June.

The underground reservoir has been climbing above barriers set to contain it, and experts now fear that it’s about to reach the Pacific Ocean. Amid frustration that Tepco could have done more to prevent this from happening are fears that it’s unprepared to handle the coming fallout.

The company has created chemical blockades and has finally begun construction on an offshore steel wall to contain the water. Its more ambitious plans include surrounding the plant with a mile-long, 90-foot deep wall of ice. Even if that last option works, it won’t be ready until 2015. There’s also a chance that other steel tanks  – built in a rush and containing nearly 300,000 tons of partially treated contaminated water — could also spring leaks. Tepco says it plans to build newer ones with tighter seals. In the meantime, they may be running out of space for the estimated 400 tons of water pumped daily, and contaminated groundwater seeps toward the sea at a rate of 4 meters per month; the plant is only 150 meters from the ocean.

We don’t really know if the contaminated water has reached the ocean yet, or what the health and environmental implications might be once it does. And the water issue aside, the plant still needs to be decommissioned. The next step, the removal of 400 tons of spent fuel by hand from a damaged reactor building, provides a fresh opportunity for things to go wrong. In the worst case scenario, the accidental release of radioactive material would mean a bigger crisis than in 2011. The entire decommissioning process is anticipated to take 40 more years — and from the way it’s been handled so far, the world may be holding its breath for the duration.

Lindsay Abrams

Lindsay Abrams is a staff writer at Salon, reporting on all things sustainable. Follow her on Twitter @readingirl, email labrams@salon.com.

More Related Stories

Featured Slide Shows

  • Share on Twitter
  • Share on Facebook
  • 1 of 17
  • Close
  • Fullscreen
  • Thumbnails
    John Stanmeyer

    Overdevelopment, Overpopulation, Overshoot

    Container City: Shipping containers, indispensable tool of the globalized consumer economy, reflect the skyline in Singapore, one of the world’s busiest ports.

    Lu Guang

    Overdevelopment, Overpopulation, Overshoot

    Man Covering His Mouth: A shepherd by the Yellow River cannot stand the smell, Inner Mongolia, China

    Carolyn Cole/LATimes

    Overdevelopment, Overpopulation, Overshoot

    Angry Crowd: People jostle for food relief distribution following the 2010 earthquake in Haiti

    Darin Oswald/Idaho Statesman

    Overdevelopment, Overpopulation, Overshoot

    “Black Friday” Shoppers: Aggressive bargain hunters push through the front doors of the Boise Towne Square mall as they are opened at 1 a.m. Friday, Nov. 24, 2007, Boise, Idaho, USA

    Google Earth/NOAA, U.S. Navy, NGA, GEBCO

    Overdevelopment, Overpopulation, Overshoot

    Suburban Sprawl: aerial view of landscape outside Miami, Florida, shows 13 golf courses amongst track homes on the edge of the Everglades.

    Garth Lentz

    Overdevelopment, Overpopulation, Overshoot

    Toxic Landscape: Aerial view of the tar sands region, where mining operations and tailings ponds are so vast they can be seen from outer space; Alberta, Canada

    Cotton Coulson/Keenpress

    Overdevelopment, Overpopulation, Overshoot

    Ice Waterfall: In both the Arctic and Antarctic regions, ice is retreating. Melting water on icecap, North East Land, Svalbard, Norway

    Yann Arthus-Bertrand

    Overdevelopment, Overpopulation, Overshoot

    Satellite Dishes: The rooftops of Aleppo, Syria, one of the world’s oldest cities, are covered with satellite dishes, linking residents to a globalized consumer culture.

    Stephanie Sinclair

    Overdevelopment, Overpopulation, Overshoot

    Child Brides: Tahani, 8, is seen with her husband Majed, 27, and her former classmate Ghada, 8, and her husband in Hajjah, Yemen, July 26, 2010.

    Mike Hedge

    Overdevelopment, Overpopulation, Overshoot

    Megalopolis: Shanghai, China, a sprawling megacity of 24 Million

    Google Earth/ 2014 Digital Globe

    Overdevelopment, Overpopulation, Overshoot

    Big Hole: The Mir Mine in Russia is the world’s largest diamond mine.

    Daniel Dancer

    Overdevelopment, Overpopulation, Overshoot

    Clear-cut: Industrial forestry degrading public lands, Willamette National Forest, Oregon

    Peter Essick

    Overdevelopment, Overpopulation, Overshoot

    Computer Dump: Massive quantities of waste from obsolete computers and other electronics are typically shipped to the developing world for sorting and/or disposal. Photo from Accra, Ghana.

    Daniel Beltra

    Overdevelopment, Overpopulation, Overshoot

    Oil Spill Fire: Aerial view of an oil fire following the 2010 Deepwater Horizon oil disaster, Gulf of Mexico

    Ian Wylie

    Overdevelopment, Overpopulation, Overshoot

    Slide 13

    Airplane Contrails: Globalized transportation networks, especially commercial aviation, are a major contributor of air pollution and greenhouse gas emissions. Photo of contrails in the west London sky over the River Thames, London, England.

    R.J. Sangosti/Denver Post

    Overdevelopment, Overpopulation, Overshoot

    Fire: More frequent and more intense wildfires (such as this one in Colorado, USA) are another consequence of a warming planet.

  • Recent Slide Shows

Comments

Loading Comments...