Wanted: Home for 17,000 tons of mercury

Join Our Community of Science Lovers!

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American



On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


The U.S. is sitting on a slippery stockpile of toxic material that has nothing to do with the nuclear power industry: thousands of tons of mercury. The question remains now of where to store it.

The heavy metal, found in everything from old thermometers to power plant emissions, has been linked to neurological damage, birth defects and other health concerns.

Although dedicated mercury mining stopped in the U.S. in 1990, the storage reserves have continued to grow as demand for manufacturing and other uses have dropped off. By 1994, sales from the U.S. mercury stockpile were suspended. A 2003 report [pdf] by state and federal environmental agencies found that “there is not a national plan or a consensus on who should be storing excess elemental mercury.”

Some of the mercury excesses have been shipped overseas to countries that have more lax disposal laws, according to the Associated Press. But the 2008 Mercury Export Ban Act charged the Department of Energy (DoE) with finding a domestic destination for long-term storage of the mined metal. After the DoE announced a shortlist of possible storage sites, opposition has been quickly rising.

Colorado, one of the seven states under consideration, has seen protest from locals and politicians alike, including Gov. Bill Ritter, who said: “The risks to ground and surface water are too great. The risks to our air quality are too great.”

The other states on the list are Idaho, Missouri, Nevada, South Carolina, Texas and Washington. Kansas City has already passed a resolution to oppose mercury storage at a local energy plant, according to the Kansas City Star.

Despite the challenges of the search for a storage location, the DoE is looking at the silver lining. “We see this as an opportunity to help reduce the export and transportation of mercury,” Frank Marcinowski of the DoE’s environmental management office told the AP. 

The DoE is expected to issue an environmental impact statement for public comment in the coming months.

Image courtesy of bionerd via Wikimedia Commons

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe