Cleaning Up Dioxin

  • West Michigan Park lies along the Tittabawassee River. Large swaths of its soil was removed and re-sodded due to dioxin contamination. The removal was part of a US EPA effort to have Dow clean up several hot spots in the rivershed. (Photo by Shawn Allee)

One thing we hear over and over
from the Obama Administration
is that when it comes to the
environment, science should set
the agenda. Right now, though,
the chemical industry is accusing
the administration of abandoning
that idea. Shawn Allee reports it has to do with the science
behind a potent toxin:

Transcript

One thing we hear over and over
from the Obama Administration
is that when it comes to the
environment, science should set
the agenda. Right now, though,
the chemical industry is accusing
the administration of abandoning
that idea. Shawn Allee reports it has to do with the science
behind a potent toxin:

President George W. Bush took it on the chin when it came to the environment. One accusation is that he ignored science that suggested we should get tougher on green house gas emissions.

President Obama’s Administrator at the US Environmental Protection Agency is Lisa Jackson. She said things would be different.

“On my first day, I sent a memo to every EPA employee stating that our path would be guided by the best science and by the rule of law, and that every action we took would be subject to unparalleled transparency.”

It hasn’t taken long for the chemical industry to say Obama’s Administration is back-tracking.

“There’s been this notion to get things done, and it get it done fast.”

That’s David Fischer, an attorney for the American Chemistry Council. Fischer’s concerned about new standards on dioxins.

Dioxins are by-products from producing chemicals. They also get into the environment from burning trash and wood.

The government says dioxin causes cancer and reproductive and developmental diseases.

It’s known this for decades, but it’s been finishing a report to show exactly how toxic dioxins are. It’s been writing this dioxin reassessment for 18 years, and it was supposed to put out a draft last week.

But it didn’t do that, and it hasn’t said when it will.

That didn’t stop the EPA from proposing a new rule about how much dioxin should be allowed in the soil in peoples’ yards.

Fischer says that rule should wait.

“If they’re going to base goals based on the best available science, and they have, in fact, stated they plan to, it’s hard to imagine how you can do that before the reassessment’s finished because that does after all represent or should represent the best available science.”

The chemical industry’s concerned because dozens of sites across the country are contaminated with dioxins. And the rule would lower the amount of dioxin allowed in residential soil. It would go from 1000 parts per trillion to 72 parts per trillion – that’s a drop of more than 90%.

Fischer says that could cost companies millions of dollars in extra clean-up costs.

“Again, that begs the question, Why?”

One accusation is that the Obama administration wanted to finalize dioxin soil regulations in time to coincide with controversial, on-going dioxin clean-ups, such as one in central Michigan.

The EPA didn’t answer this question directly and wouldn’t provide an interview in time for this report. But it did say it’s got sound science to justify the proposed dioxin soil rule.

You might ask why this matters. Well, just look at central Michigan, where there’s a large, on-going dioxin cleanup.

Linda Dykema works with Michigan’s Department of Community Health. She creates state standards on how much dioxin should be allowed in water, fish, and soil. To protect people in Michigan, she needs help from the EPA.

“We rely a great deal on federal agencies to provide us with some hazard assessment for chemicals. The ability of the state to public health staff to do those kinds of assessments is pretty limited. They can do what needs to be done and what we can’t do here at the state.”

And a ruling on dioxin levels in soil should help Dykema. But this move by the EPA might cause more problems than it solves. For years, the chemical industry’s argued that the science behind dioxin isn’t complete.

This proposed soil rule gives the chemical industry another chance to say, ‘here we go again.’ And the justification it needs to keep fighting a rule the EPA insists protects people’s health.

For The Environment Report, I’m Shawn Allee.

Related Links

Preview: The Trail of Dioxin and Dow

  • A Dow Chemical sign on the Tittabawassee River stating 'Enter At Your Own Risk' (Photo by Vincent Duffy)

If you learned your town was polluted
with toxic waste, you’d just want to
get it cleaned up. That’s not how things
have worked out with dioxin contamination
in central Michigan. Dioxin’s been a problem
for at least 30 years, but the Dow Chemical
Company, the federal government, and
the state of Michigan are just now hashing
out final cleanup plans. We had Shawn
Allee tour the area to see the
extent of the problem and what’s at stake
for the rest of us:

Transcript

If you learned your town was polluted
with toxic waste, you’d just want to
get it cleaned up. That’s not how things
have worked out with dioxin contamination
in central Michigan. Dioxin’s been a problem
for at least 30 years, but the Dow Chemical
Company, the federal government, and
the state of Michigan are just now hashing
out final cleanup plans. We had Shawn
Allee tour the area to see the
extent of the problem and what’s at stake
for the rest of us:

I wanted to begin my tour with interviews at Dow’s chemical plant in Midland. That’s where dioxin and related compounds were created: the dioxins were by-products of chemical manufacturing.

After a month of calls and emails to Dow, a spokeswoman said the company was interested in talking about the future – not the past. But the past is the reason there’s a problem now.

So, I start my tour a bit downstream.

Michelle Hurd Riddick picks me up near the plant. She’s with The Lone Tree Council, a Michigan environmental group. We follow the Tittabawassee River and the path dioxins took over time.

“This is Freeland Festival Park. Freeland is kind of like a bedroom community of Midland.“

Hurd Riddick says fishing is a huge past time in Michigan – but dioxin’s made it complicated.

Allee: “There’s a fish-advisory sign right there.“

Riddick: “Right. So, they’re telling you to not eat the fish.“

Actually, the signs tell you which fish to avoid, and how much to eat, or not. The US Environmental Protection agency worries dioxin causes cancer and diseases that affect immune, reproductive, and developmental systems.

“Pregnant women shouldn’t eat any, children under a certain age should only eat it once a month.“

Fish advisories cropped up in 1978. That’s after Dow warned Michigan and the federal government about dioxin in the Tittabawassee River. While the plant’s dioxin pollution is well below federal limits, the old dioxins are still around, and they’re not just in the river.

Allee: “Where we coming up here?“

Riddick: “This is Imerman Park, it’s on the Tittabawassee, too, and it’s very frequently flooded.“

Flood waters leave behind contaminated silt. Dioxin’s been found in the soil of yards and in parks like this. One worry is that kids would get exposed by getting dirt in their mouths.

Riddick: “Those are the hand washing sinks. They put the sinks there to use the hand-washing sink to wash their hands as a way to mitigate their exposure.“

Allee: “There’s the sign – contamination advisory: avoid contact with soil and river sediment. Please use soap and water to wash off soil and sediment.“

Other parks and some yards had soil scraped and removed. Dow cleaned up several dioxin hot-spots in recent years. Michigan and the US EPA want more of a top-to-bottom effort. That might include a sweep of fifty miles of river and part of the Great Lakes.

Riddick: “This is the Saginaw Bay of Lake Huron. As a child, I came up here a lot. I’m sure someplace I have a picture of me near these trees.“

Riddick’s middle-aged now. The dioxin was in rivers and Lake Huron before she was born. No one knew that far back. But residents did learn about the problem thirty years ago. Today Dow, the US EPA and Michigan are still debating a final solution.

“We’ve had many, many starts. If I had a nickel for every time I heard someone say this is how we’re going to achieve this cleanup, I’d be a wealthy woman.“

Hurd Riddick says the whole country should care about how this plays out.

Riddick: “People need to care about how this process because could play out in your community.“

Allee: “Maybe not dioxin but something else?“

Riddick: “You want to know that that the people your tax dollars are paying to protect you are the ones calling the shots.“

A final dioxin-clean up could take more than ten years. Michelle Hurd Riddick says she can wait that long – if it’s done right.

But she says it wouldn’t hurt if the clean-up got started now.

For The Environment Report, I’m Shawn Allee.

Related Links

New Company Leaves Old Messes Behind

  • More than half of the mercury switches still on the road are in GM’s cars. But, since filing for bankruptcy, GM stopped paying into the program. (Photo courtesy of the National Renewable Energy Laboratory)

The new General Motors, which recently emerged from bankruptcy, wants to create a clean, green image with its Chevy Volt electric car. But GM might have a bit of an environmental PR problem on its hands. Tamara Keith explains:

Transcript

The new General Motors, which recently emerged from bankruptcy, wants to create a clean, green image with its Chevy Volt electric car. But GM might have a bit of an environmental PR problem on its hands. Tamara Keith explains:

Automakers used to use mercury switches for lights and anti-lock brakes. But when old cars are scrapped and melted down, those parts turn into toxic air pollution.

So automakers and environmental groups created a program to recycle the mercury.

More than half of the mercury switches still on the road are in GM’s cars. But, since filing for bankruptcy, GM stopped paying into the program.

Rich Bell is president of the program, and he also works at Ford.

“None of our members are interested in paying for GM’s environmental legacy issues, and so we’re looking for a path forward, and we’re kind of in the midst of that now.”

In a statement, the new GM said those cars with mercury switches were made by the old GM.

The new GM that emerged from bankruptcy is not responsible for those old switches.

For The Environment Report, I’m Tamara Keith.

Related Links