Part 4: Hunters Warned After Dioxin Delays

  • Fish advisories dot the banks of the Tittabawassee and Saginaw Rivers. Various forms or pollution, including historical dioxin pollution from Dow Chemical, have led to warnings to avoid certain species of fish and limit consumption for them. Pregnant woment and young children are given more stringent warnings. (Photo by Shawn Allee)

It’s deer season in Michigan, and
hunters are trekking through the woods,
trying to bag dinner or something
special for the holidays. Hunting’s
gotten a little complicated in some
areas recently. Just because you catch
something doesn’t mean you should eat
it. That’s because a stretch of river
in Michigan was polluted with dioxin –
decades ago. In the fourth part of a
series on Dow Chemical and dioxin, Shawn
Allee found the state thinks
old dioxin pollution from a Dow chemical
plant poses a health risk today:

Transcript

It’s deer season in Michigan, and
hunters are trekking through the woods,
trying to bag dinner or something
special for the holidays. Hunting’s
gotten a little complicated in some
areas recently. Just because you catch
something doesn’t mean you should eat
it. That’s because a stretch of river
in Michigan was polluted with dioxin –
decades ago. In the fourth part of a
series on Dow Chemical and dioxin, Shawn
Allee found the state thinks
old dioxin pollution from a Dow chemical
plant poses a health risk today:

It was hard for me to understand why wild game like deer or turkey might be contaminated from river pollution, so I hit up Daniel O’Brien for some answers. O’Brien’s a toxicologist with Michigan’s Department of Natural Resources. He says the problem starts with dioxin in the river.

“It’s in the sediments in these contaminated parts of the Tittabawassee River, and after flood events in the spring when, say, mud in the river gets deposited onto bushes or whatever and deer browse those, then they pick up soil that way.”

Part of O’Brien’s job is to spread the news about the contamination. He says when you buy a hunting license in Michigan you get this brochure.

“It’s a booklet that has all the regulations for hunting and trapping in it.”

These wildlife consumption advisories are voluntary but they kinda read like owners manuals. They lay out where the dioxin-contaminated animals are. They tell you what animals you can eat, and what parts. For example, no one’s supposed to eat deer liver from the areas – that’s got the most dioxin in it. And, of cuts you can eat, the advisory says how much, and how often. Plus, they tell who should eat less or maybe none at all.

“Kids might be more sensitive. They might have a more stringent advisory than somebody like me who’s kinda your middle-aged man and we might not be as susceptible to toxic effects.”


The idea’s to protect people from dioxin, and the risk it poses for cancer and diseases of the immune, reproductive, and developmental systems. It’s an important job, given how big hunting is in Michigan.

“We have three quarters of a million hunters every year that go afield and harvest half a million white-tailed deer.”

Michigan scientists take the issue seriously, but I’m kinda curious whether hunters do. So, I visit the Saginaw Field and Stream Club. Inside, there’s this paneled wall with faded pictures of club presidents. It stretches from the club’s founding in 1916 – all the way to this guy, current President Tom Heritier.

“We’re still here today.”

Heritier says his club’s smack-dab in the contaminated area and everyone knows about the advisories, but, well …

“With the game advisories, I have not heard one person who has any problem with the deer or the birds around the watershed.”

This goes for him, too.

“Nobody is sick from it. I don’t know of anybody that has died of exposure. That’s never been proven. It’s nothing to take lightly, but then again, it might be a little bit on the overblown side, too.”

The State of Michigan tried to survey hunters like Heritier. Officials wanted to know if hunters were feeding tainted game to young children. That survey never made the budget.

Before I leave the hunting club, Heritier wants to clear something up. He’s actually mad about dioxin. It’s in the environment – he wants it gone.

Heritier: “There’s absolutely no reason for industry to be polluting our natural resources, whether it be air, soil, or water.”

Allee: “Even if it’s not a slam-dunk, for sure, killing people off sort of thing?”

Heritier: “Number one, God didn’t put it there, it don’t belong there. That’s the way it is.”

Well, Heritier wants the environment protected from dioxin, but not necessarily himself.

State scientists say, if Heritier changes his mind and wants to reduce his health risk – they’ll keep printing those game advisories for him.

For The Environment Report, I’m Shawn Allee.

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Risk the Shot or Risk the Flu

  • A study by the Harvard School of Public Health finds that only 51% of parents nationwide plan to get their kids vaccinated against the new swine flu. (Photo courtesy of the Centers for Disease Control and Prevention)

Public health officials want people
to get vaccinated for swine flu.
But only half of parents nationwide
say they plan to get their kids vaccinated.
Many say they’re worried about vaccine
side-effects. Julie Grant reports some
government policies may have inadvertently
made people concerned about vaccine safety:

Transcript

Public health officials want people
to get vaccinated for swine flu.
But only half of parents nationwide
say they plan to get their kids vaccinated.
Many say they’re worried about vaccine
side-effects. Julie Grant reports some
government policies may have inadvertently
made people concerned about vaccine safety:

Some of the schools near where I live in Ohio have absentee
rates of 20%. Kids are reporting flu-like symptoms. Some
schools are even closing down to keep more people from
getting sick.

At the same time, a study by the Harvard School of Public
Health finds that only 51% of parents nationwide plan to get
their kids vaccinated against the new swine flu.

The vaccine has a serious public relations problem.

One reason people are worried: thimerosal.

Thimerosal is a preservative used in vaccines. It prevents
bacteria and fungus from contaminating vaccine bottles.
Thimerosal is almost half mercury, by weight. And that
makes a lot of people nervous.

As a precaution, it was taken out of most American vaccines
about twenty years ago. But it’s still used a lot in flu shots.

Lynn Gregor has two little children. She’s been leaning
toward getting them vaccinated for swine flu.
But she just heard about thimerosal, and she’s concerned.

“Because even if it’s a teeny, tiny bit of mercury, which is
what that product is connected with. Because a teeny tiny
bit of mercury can have a big impact.”

The Centers for Disease Control says the type of mercury in
thimerosal is different than the kind that’s in thermometers.
Lots of people think thimerosal is linked with increased
autism rates. But public health officials say science does not
bear that out.

“There has been no credible evidence of a harm that’s linked
to thimerosal.”

That’s Donn Moyer. He’s spokesman for the Washington
state Department of Health. It’s one of six states that have
passed laws making it illegal to give young children and
pregnant women flu shots that contain thimerosal.

Moyer says the health department didn’t ask for the law. It
says thimerosal is safe. But, politicians wanted to appease
people concerned about thimerosal.

The state of Washington’s concern is not about the actual
safety of thimerosal, it’s about the public’s perception of
thimerosal.

“The goal was to maintain public confidence in vaccine
programs and to encourage parents to have their kids
vaccinated.”

But now that the new swine flu is here, Washington is
suspending its law. The swine flu seems to be hitting young
children especially hard, and Moyer says infants and
pregnant women should get immunized – even if the only
shots available contain thimerosal.

“We don’t see any credible risk of health effect from the
thimerosal and it could protect against a very, very serious
influenza infection.”

That seems like a mixed message to parents. And it’s part
of the confusion between the science and politics of this
issue.

(Fox news music intro)

Anchor: “We are tracking H1N1 and health officials here in
the US…”

On this Fox news report Dr. Kent Holtorf is labeled an
“infectious disease expert”, and he warns people against the
vaccine.

Holtorf: “And it’s been shown to cause autism in children
with mitochondrial dysfunction. It’s controversial, though
highly implicated.”

Anchor: “Would you give it to your kids?”

Holtorf: “I definitely would not.”

Some Right-leaning commentators are sharing their
suspicions about the vaccine from the government. And, on
the Left, one natural health newsletter put out a special
edition warning against vaccination.

This all leaves federal health officials with a big job to do:
use the preponderance of science to convince people that
swine flu is potentially more dangerous than the vaccine and
thimerosal.

The mother we talked to – Lynn Gregor – wants to protect
her kids from swine flu, and she’s thinking about getting
them vaccinated.

“If they don’t get it, I’m going to be really worried all winter.
I’m going to be really concerned.”

But when Gregor hears so many people are opting out of the
vaccine – and that some states actually ban thimerosal most
of the time – she’s not sure what to do.

For The Environment Report, I’m Julie Grant.

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Population Control for Cormorants

  • Biologists Jim Farquhar and Mike Smith inspect the cormorant nests in the treetops. (Photo by Karen Kelly)

The pesticide DDT almost wiped
out the double-crested cormorant.
Now, the bird is thriving, and it’s
blamed for devouring fish in lakes,
rivers, and fish farms in many parts
of the country. Karen Kelly reports
on the struggle to share resources
with this unpopular bird:

Transcript

The pesticide DDT almost wiped
out the double-crested cormorant.
Now, the bird is thriving, and it’s
blamed for devouring fish in lakes,
rivers, and fish farms in many parts
of the country. Karen Kelly reports
on the struggle to share resources
with this unpopular bird:

(sound of clanking and birds)

Mike Smith eases a boat into the shallow water just off Little Murphy Island. It’s a tiny patch of sand and trees in the middle of the St. Lawrence River. It straddles the New York border with Canada.

Smith is a wildlife technician with New York’s department of environmental conservation. He specializes in cormorant management. That means he knocks down nests, breaks eggs, and – very occasionally – shoots them.

Before he even jumps off the boat, he starts counting the birds that are poking out of nests in the treetops.

“I see a few. I’m looking at their nests. We tried to have a zero percent successful reproduction rate.”

Smith counts maybe ten nests. They started with 150 or so in the spring.

There are tens of thousands of these birds. They spend their summers in the north. And in the winter, they go south where they raid fish farms.

Biologists estimate each bird eats a pound of fish a day. That can make a dent in the local fish population. The birds also strip trees of their leaves to create nests. And their guano ends up killing the trees’ root systems. That ends up driving out other animals that need vegetation.

Some people feel the birds should be eradicated. One group of anglers was even arrested for killing hundreds of them on Lake Ontario.

There are others, like the group Cormorant Defenders International. They feel they should be protected.

It’s up to biologists like Jim Farquhar of New York’s Department of Environmental Conservation to find the balance between human needs and cormorants.

Farquhar: “We have needs too, as people.”

Karen: “And we’re competing with them.”

Farquhar: “And we’re competing with them in some cases. Hopefully, if we can inject good science, we make good decisions as a result.”

The biologists’ biggest effort has been on Lake Ontario. They’ve been destroying nests there — and killing some adults – for ten years. Farquhar says they’re finally seeing results.

They’ve reduced the cormorant population on the lake by about two-thirds, and the fishing’s improved.

Now, the biologists are trying to have the same success on the St. Lawrence River. But they’ve only seen a 13% decrease in the number of cormorant nests and they’ve been doing it for four years.

Part of the challenge is that most of the birds live on Canadian soil where management is left to the landowner.

Local anglers like Steve Sharland of Ogdensburg, New York, are frustrated with the slow progress.

“They should eliminate them. They’re not a Northern New York bird and what they’re doing to our fisheries is a sin.”

That’s a common misconception. Actually, the cormorant is native to the region but few people have seen them in such large numbers.

Sharland says some people are so frustrated, they’ve been shooting the birds illegally. But Jim Farquhar believes those are isolated incidents.

“Mike just mentioned that we’ve got some black-crowned night herons nesting out here. It’s another species we’re concerned about, and one we’ve been trying to actively protect from the cormorants. So that’s a good sign.”

A good sign. But it’s another species trying to live on this small patch of land. And the biologists’ balancing act has become even more delicate.

For The Environment Report, I’m Karen Kelly

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Salmonella Vaccine Coming Soon?

  • While a salmonella vaccine is in the works, researchers don't think it's suited for countries like the United States (Photo courtesy of the Centers for Disease Control)

Researchers are working on a new vaccine to prevent salmonella poisoning. But, Julie Grant reports, the researchers say it probably won’t help us when we’re faced with salmonella tainted tomatoes or alfalfa sprouts:

Transcript

Researchers are working on a new vaccine to prevent salmonella poisoning. But, Julie Grant reports, the researchers say it probably won’t help us when we’re faced with salmonella tainted tomatoes or alfalfa sprouts:

Salmonella poisoning affects about 20-million people worldwide each year and causes 200,000 deaths. A vaccine might sound like a good idea.

Arthur Thompson has been working on one at the Institute of Food Research in England. His group has found that salmonella relies on glucose for its survival. So they’re designing a vaccine to use that against the bacteria.

But Thompson thinks a salmonella vaccine should not be used to solve a problem that industrialized nations can already prevent.

“I don’t think it would be appropriate really, for something like this. I mean, I think in this case, it’s more a case of preventing the contamination in the first place, really.”

Thompson says the vaccine is better suited for people in developing nations where salmonella causes still causes typhoid fever.

For The Environment Report, I’m Julie Grant.

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The Great Vaccination Debate

  • There are parts of the country where up to 20% of families are saying ‘no’ to vaccines. (Photo by Bill Branson, courtesy of the National Cancer Institute)

Babies and young children get a lot more vaccines today than they did ten years ago. To most parents, it’s a chance to protect their children from more diseases. But there are pockets of places where lots of people are opting out of vaccines. Julie Grant reports that it has the Centers for Disease Control concerned:

Transcript

Babies and young children get a lot more vaccines today than they did ten years ago. To most parents, it’s a chance to protect their children from more diseases. But there are pockets of places where lots of people are opting out of vaccines. Julie Grant reports that it has the Centers for Disease Control concerned:

Heather Waltz has a five month old daughter. Most Americans her age have already started a series of vaccinations – to prevent everything from Hepatitis B, to Diphtheria, to Polio.

But Waltz’s little girl isn’t going to get those shots. Her mom worries they could cause things like autism, juvenile diabetes and even cancer.

“I think the jury’s still out, as far as what the research says. But there is enough anecdotal sort of stuff to make me aware and decide that, really, right at this point, vaccinating wasn’t what I wanted to do.”

Waltz is among a small, but growing number of parents who are becoming skeptical of vaccines.

Lance Rodewald is director of immunization services at the Centers for Disease Control.

He says more than 90% of American children are vaccinated. But there are parts of the country where up to 20% of families are saying ‘no’ to vaccines.

“And that’s getting to a rate of lack of protection of children that really can be a fertile ground for the spreading of diseases like measles. And we actually saw that last year.”

In one case last year, Rodewald says a child who wasn’t vaccinated caught the measles in Switzerland and brought it back to Arizona.

“The parents didn’t realize that the child had measles – brought him to the pediatricians office where there were babies that were too young to be vaccinated that got measles. And then that particular outbreak went through four generations of spread, from child to child to child to child before it was able to be contained.”

Measles can cause more than just a nasty rash. In rare cases, it can lead to death. Measles still causes 200,000 deaths around the world. But it’s been almost eradicated in the U.S. because of vaccines.

Rodewald says many parents are concerned about vaccines today because of a ten-year old scientific article that linked the vaccine for measles, mumps and rubella to autism. Rodewald says the science in that article proved to be wrong.

“The authors withdrew their names from the article. But this particular study set off a whole series of concerns about vaccines and autism that, to this day, is still talked about.”

Rodewald says many studies have been done and found no association, no cause and effect, between vaccines and autism.

It’s tough for parents to wade through all the information that’s out there these days. And there are so many vaccines to try to understand. Back in the mid-1990s, children were given 6 vaccines. Today, they’re supposed to get more than twice that many.

Mother Heather Waltz tries to keep up with it all and says she still plans to avoid vaccines.

Waltz: “For every bit of research and every article I find sort of helping me support my point, there’s a million other bits of research and articles saying that I’m a bad parent, or saying that I’m somehow damaging the health of the entire United States by not vaccinating my child. Just this idea that she could be a measles monster and just running around and infecting her classmates with measles or something like that, and that would be a terrible thing.”

Grant: “What do you think when you see that?”

Waltz: “It doesn’t make logical sense to me. Because to me, if you have 30 kids in a classroom, and my one isn’t vaccinated, wouldn’t my child be the one at risk? Not the public’s.”

But even if Waltz’s daughter doesn’t get vaccinated, she’ll probably be safe from these diseases. With so many other kids getting inoculations, most of the U.S. is not fertile ground for them to regain traction.

For The Environment Report, I’m Julie Grant.

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A New Threat to Grizzly Bears

  • The grizzly bear has a new threat - the Mountain Pine Beetle that's wiping out its food source (Photo courtesy of the US Fish and Wildlife Service)

We’ve heard about a warmer climate affecting polar bears. Now, warmer weather seems to be threatening another kind of bear. Mark Brush reports on some tough times for Yellowstone’s Grizzly bears:

Transcript

We’ve heard about a warmer climate affecting polar bears. Now, warmer weather seems to be threatening another kind of bear. Mark Brush reports on some tough times for Yellowstone’s Grizzly bears:

Researchers say warmer temperatures in the last ten to fifteen years have been messing with the ecology in Yellowstone National Park.

In the fall, the grizzly bears eat pine cone nuts from white bark pine trees. It gives them a lot of nutrition before they curl up for the winter. But those trees are dying.

Mountain pine beetles are killing them. The beetle populations usually get knocked back by cold weather. But it hasn’t been getting as cold. So, there are more beetles killing more trees.

Doug Peacock lives near Yellowstone and has written several books on grizzlies.

“The white bark pine trees, this is the most important grizzly food of all in Yellowstone, they are gone. And we will not see them come back in our lifetime.”

And when the trees are gone, the bears get hungry – they go looking for food – and they run into people.

48 grizzlies out of the 600 in the region were killed last year.

Some environmental groups are suing the government to get the bear back on the endangered species list.

For The Environment Report, I’m Mark Brush.

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Some States Planning Wolf Hunts

  • In some states, there are plans for a wolf hunting season (Photo courtesy of the US Fish and Wildlife Service)

Some states plan to let people hunt wolves. Rebecca Williams reports that’s happening because the US government is taking gray wolves off the federal endangered species list in two places:

Transcript

Some states plan to let people hunt wolves. Rebecca Williams reports that’s happening because the US government is taking gray wolves off the federal endangered species list in two places:

This decision means states in the western Great Lakes and several Rocky Mountain states will have control over wolves.

Some states are calling wolves a protected nongame species.

For example in Michigan, a wolf can only be killed if it’s attacking people, pets or livestock. But in other states – like Idaho and Montana – there are plans for a hunting season for wolves.

Jonathan Lovvorn is chief counsel for the Humane Society of the United States. His group and several others are planning to sue.

“Essentially what we’re worried about is that this is basically going to be a declaration of open season on animals that have been protected for decades.”

The federal decision to take wolves off the endangered species list could be overturned in court. That happened last fall.

If the decision sticks, then the Fish and Wildlife Service will be keeping an eye on wolf populations for at least the next five years.

For The Environment Report, I’m Rebecca Williams.

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Lead Bullets and Hunters’ Meat

  • Condors are harmed by eating meat contaminated with lead from hunters' bullets (Photo courtesy of the US Fish and Wildlife Service)

Hunters have been using lead
bullets for decades to kill game with
little, if any, side effects. But new
research finds that hunters may need
to use more caution when choosing their
bullets. Reporter Sadie Babits has this
story on a hidden danger that’s just
coming to light:

Transcript

Hunters have been using lead
bullets for decades to kill game with
little, if any, side effects. But new
research finds that hunters may need
to use more caution when choosing their
bullets. Reporter Sadie Babits has this
story on a hidden danger that’s just
coming to light:

Tony Hanson has been hunting wild game all of his life. And over the years, he’s
grown pretty attached to what he considers the most cost effective, most efficient
bullet around – a lead bullet.

“It matters a lot to a hunter. You are counting on the range of that bullet. You know
what the bullet can do and you know what the gun will do. You’re out there to take
an animals life, and that’s not something we take lightly.”

The typical bullet used by most hunters is made up of about 65% lead. The bullet is
capped off with a copper jacket. These bullets are designed to handle high speeds and
to kill an animal quickly without breaking apart and sending tiny lead fragments
throughout the meat. Hanson works with the country’s largest conservation group –
Michigan United Conservation Clubs. He says he’s not concerned about possible
lead poisoning.

“Generally speaking, if you make the shot you are supposed to make you’re not
getting any edible meat. It’s not something that really weighs into my thought too
much. ”

Like Hansen, most hunters don’t give lead bullets a second thought. So why worry?

Well, early last spring, food pantries across North Dakota and Minnesota were
advised not to give out donated ground venison. That’s after lab tests revealed tiny
lead fragments in some of the meat.

It generated enough interest that North Dakota launched a study involving some 700
people. The Centers for Disease Control and Prevention worked with North
Dakota’s Health Department. They found that people who ate a lot of wild game
tended to have higher lead levels in their blood than those who ate very little or no
wild game.

The results validated similar research involving California Condors. The Condors
almost went extinct in large part because of lead poisoning. You see, the birds would
feed on gut piles and carcasses left by hunters, and, if those hunters used lead bullets,
the condors would get sick.

That old problem still exists. Lead poisoning remains the number one obstacle
standing in the way of restoring the California Condors.

(sound of birds outdoors)

Rick Watson is the vice president of the Peregrine Fund in Boise, Idaho. He says
they’ve tracked the birds through satellites to see what they feed on. They’ve also
shot deer in the same way a hunter would, using typical lead bullets. The animals
were then x-rayed.

“And we were astounded by the results. Typically out of the 30 or so deer all of them
had fragmented lead bullets in them. And we were also amazed about the actual
extent the lead fragments are sprayed throughout the meat.”

Watson says about 5% of a bullet does break apart and some of it gets into the meat.
He’s now working on another study to see the impact of lead bullets on people.
That’s involved shooting more deer, sending the meat to random processors, and
then running that meat through an x-ray machine. The findings, he says support
what North Dakota discovered late last fall.

“And again what we found that 30% of the packages of meat that came back had at
least one fragment of lead in them.”

Not enough to make a person sick, but enough to raise a red flag. Watson says the
solution is simple. Hunters need to use non-toxic lead bullets. But most hunters
aren’t convinced. So-called green bullets are about twice the cost of lead bullets and
hunters don’t believe they are as efficient.

Hunters say they want independent research done before anybody starts making the
switch to non toxic bullets.

For The Environment Report, I’m Sadie Babits.

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