Tag: damage

Nanotech Nervousness

  • Researchers are studying whether nano-sized material could purge bacteria from the digestive tracts of poultry. The bacteria doesn't harm chickens and turkeys, but it can make people sick. The hope is that using nanoparticles could reduce the use of antibiotics in poultry. (Photo courtesy of USDA)

Nanotechnology is the science of the very, very small. Scientists are
finding ways to shrink materials down to the scale of atoms. These
tiny particles show a lot of promise for better medicines, faster
computers and safer food. But Rebecca Williams reports some people are
worried about harmful effects nano-size particles might have on
people’s health and the environment:

Transcript

Nanotechnology is the science of the very, very small. Scientists are
finding ways to shrink materials down to the scale of atoms. These
tiny particles show a lot of promise for better medicines, faster
computers and safer food. But Rebecca Williams reports some people are
worried about harmful effects nano-size particles might have on
people’s health and the environment:


Life on the nano scale is so tiny it’s hard to imagine. It’s as small
as 1/100,000 of a human hair. It’s as tiny as the width of a strand of
DNA. A nanoparticle can be so small it can actually enter cells.


Nanoparticles are loved by scientists and entrepreneurs for the novel
things they can do at those tiny sizes. They act differently. They
can go where larger particles can’t.


Many companies already sell new products with nano properties. The
Project on Emerging Nanotechnologies says there are almost 500 products
on the market that use nanotechnology.


Some of those products are starting to show up in the grocery store.


Jennifer Kuzma is with the Center for Science, Technology and Public
Policy at the University of Minnesota. She tracks nanotech
developments in food and agriculture. She says there are some edible
nano products on store shelves right now:


“One is a chocolate shake that is a nano emulsion of cocoa molecules so
you can deliver more flavor for less of the cocoa product.”


Kuzma says that’s just the beginning. She says hundreds more nano
products, including a lot of food products, are on their way to market.
In many cases, scientists are looking for solutions to food safety
problems.


For example, bacteria in the intestines of chickens and turkeys can
make people sick when poultry is undercooked. Right now farmers treat
their birds with antibiotics. But as bacteria are becoming resistant
to antibiotics, scientists are looking for other methods to fight the
bacteria.


Jeremy Tzeng is a research scientist at Clemson University. He’s part
of a team developing what he calls intelligent chicken feed.
Basically, chickens would be fed a nanomaterial that attaches to
molecules on the surface of the harmful bacteria. Then the bacteria
could be purged from the chicken along with fecal matter:


“If we use this physical purging, physical removal, we are not using
antibiotics so the chance of the microorganism becoming resistant to it
is really small.”


Tzeng says his research is still in its early stages. He says there
are a lot of safety tests he needs to run. They need to find out if
the nanomaterial is safe for chickens, and people who eat the chickens.
And they need to find out what happens if the nanomaterial is released
into wastewater.


“As a scientist I love to see my technology being used broadly and very
quickly being adopted. But I’m also concerned we must be cautious. I
don’t want to create a miracle drug and then later it becomes a problem
for the long term.”


There are big, open questions about just how safe nanoparticles are.


Researcher Jennifer Kuzma says there have been only a handful of known
toxicology studies done so far. She says nanoparticles might be more
reactive in the human body than larger particles:


“There’s several groups looking at the ability of nanoparticles to
damage, let’s say your lung tissue. Some of the manufactured or manmade nanoparticles are thought to have greater abilities to get into the
lungs, penetrate deeper and perhaps damage the cells in the lungs, in
the lung tissue.”


In some cases, it’s hard for the government to get information about new
nano products. Kuzma says companies tend to keep their own safety data
under lock and key:


“Some companies might send you the safety studies if you ask for them. Others may not
because they of course have interests in patenting the technology and
confidential business information.”


So the government doesn’t always know all that much about what’s
heading to market. Agencies are trying to figure out how – and even
whether – to regulate products of nanotechnology. Right now, there are
no special labeling requirements for nano products.


In the meantime, nanotechnology is turning into big business. Several
analysts predict that just three years from now, the nanotech food
market will be a 20 billion dollar industry.


For the Environment Report, I’m Rebecca Williams.

Related Links

Ban for Off-Road Vehicles?

Some groups are looking for ways to reduce the damage to natural areas done by off-road vehicles. An organization representing off-road riders agrees that there should be rules for off-roading… but not complete bans on the recreational vehicles. The Great Lakes Radio Consortium’s Lester Graham
reports:

Transcript

Some groups are looking for ways to reduce the damage to natural areas
done by off-road vehicles. An organization representing off-road riders
agrees that there should be rules for off-roading… but not complete bans
on the recreational vehicles. The Great Lakes Radio Consortium’s Lester
Graham reports:


Off-road riding is a lot of fun for a lot of people, but some environmental
groups want off-road vehicles banned in many state and national parks.
For example, one study is looking at banning off-road vehicles from
some sand dunes on Lake Michigan because they damage rare plants.


Russ Ehnes is with the riders’ group the National Off-Highway Vehicle
Conservation Council.


“We all need to be sensitive when it comes to threatened and endangered
species and habitat, but we need to also find ways to provide
opportunities instead of just eliminating opportunities.”


Ehnes concedes as the number of off-road riders has increased, damage
to natural areas has worsened. He says it’s up to the park managers,
though, to find a way for everyone, including riders, to enjoy the parks
and preserve the important habitat.


For the GLRC, this is Lester Graham.

Related Links

Ten Threats: Demand for Drinking Water Increasing

  • Water diversion is an increasing threat to the Great Lakes. As communities grow so does the demand. (Photo by Brandon Bankston)

We’re continuing the series, Ten Threats to the Great Lakes. Our field guide through the series is Lester Graham. He says our next report looks at where the demand for water will be greatest:

Transcript

We’re continuing the series Ten Threats to the Great Lakes. Our field
guide through the series is Lester Graham. He says our next report looks
at where the demand for water will be greatest.


Right around the Great Lakes is where there’s going to be more demand
for drinking water. Water officials say as cities and suburbs grow, so
does the need for water. Some towns very near the Great Lakes say they
need lake water right now, but in some cases they might not get it. The
Great Lakes Radio Consortium’s Christina Shockley reports:


People who live around the Great Lakes have long used the lakes’ water
for transportation, industry, and drinking water. Most of the water we
use, gets cleaned up and goes back in the lakes.


That’s because the Great Lakes basin is like a bowl. All the water used
by communities inside that bowl returns to the lakes in the form of
groundwater, storm water runoff, and treated wastewater, but recently, thirsty
communities just outside the basin—outside that bowl—have shown an
interest in Great Lakes water.


Dave Dempsey is a Great Lakes advisor to the environmental group
“Clean Water Action.”


“We are going to be seeing all along the fringe areas of the Great Lakes
basin all the way from New York state to Minnesota, communities that
are growing and have difficulty obtaining adequate water from nearby
streams or ground water.”


Treated water from those communities won’t naturally go back to the
basin. Treated wastewater and run-off from communities outside the
Great Lakes basin goes into the Mississippi River system, or rivers in the
east and finally the Atlantic Ocean.


The Great Lakes are not renewable. Anything that’s taken away has to be
returned. For example, when nature takes water through evaporation, it
returns it in the form of rain or melted snow. When cities take it away, it
has to be returned in the form of cleaned-up wastewater to maintain that
careful balance.


Dave Dempsey says the lakes are like a big giant savings account, and
we withdraw and replace only one percent each year.


“So, if we should ever begin to take more than one percent of that
volume on an annual basis for human use or other uses, we’ll begin to
draw them down permanently, we’ll be depleting the bank account.”


Some of the citiesthat want Great Lakes water are only a few miles from
the shoreline. One of the most unique water diversion requests might come
from the City of Waukesha, in southeastern Wisconsin. The city is just 20 miles
from Lake Michigan. Waukesha is close enough to smell the lake, but it
sits outside the Great Lakes basin. Waukesha needs to find another
water source because it’s current source – wells—are contaminated with
radium.


Dan Duchniak is Waukesha’s water manager. He says due to the city’s
unique geology, it’s already using Great Lakes water. He says it taps an
underground aquifer that eventually recharges Lake Michigan.


“Water that would be going to Lake Michigan is now coming from Lake
Michigan…. our aquifer is not contributing to the Great Lakes any more,
it’s pulling away from the Great Lakes.”


Officials from the eight Great Lakes states and Ontario and Quebec
recently approved a set of rules that will ultimately decide who can use
Great Lakes water. The new rules will allow Waukesha—and some
other communities just outside the basin—to request Great Lakes water,
and drafters say Waukesha will get “extra credit” if it can prove it’s
using Lake Michigan water now.


Environmentalists are still concerned that water taken from the Lakes be
returned directly to the Lakes, but some say even that could be harmful.


Art Brooks is a Professor of Biological Sciences at the University of
Wisconsin- Milwaukee. He says the water we put back still carries some
bi-products of human waste.


“No treatment plant gets 100 percent of the nutrients out of the water,
and domestic sewage has high concentrations of ammonia and
phosphates. Returning that directly to the lake could enhance the growth
of algae in the lake.”


That pollution could contribute to a growing problem of dead zones in
some areas of the Great Lakes. Brooks and environmentalists concede
that just one or two diversions would not harm the Great Lakes, but they
say one diversion could open the floodgates to several other requests, and
letting a lot of cities tap Great Lakes water could be damaging.


Derek Sheer of the environmental group “Clean Wisconsin” says some
out-of-basin communities have already been allowed to tap Great Lakes
water under the old rules.


“The area just outside of Cleveland–Akron, Ohio– has a diversion
outside of the Great Lakes basin, so they’re utilizing Great Lakes water
but they’re putting it back.”


There are several communities that take Great Lakes water, but they, too,
pump it back. The new water rules still need to be ok-ed by the legislature of
each Great Lakes state, and Congress. Since the rules are considered a
baseline, environmental interests throughout the region say they’ll lobby
for even stricter rules on diversions.


For the GLRC, I’m Christina Shockley..

Related Links

Ash Borer Threatens Native American Traditions

  • The emerald ash borer is rapidly destroying ash trees around the Midwest, impacting not only forests but humans as well. (Photo courtesy of invasivespecies.gov)

The emerald ash borer is an invasive beetle that has killed millions of trees in the Great Lakes region. As if that weren’t bad enough, the borer is now starting to threaten Native American customs. For them, the ash trees are more than just landscaping. They’re also used for making traditional ash baskets, canoe paddles, and medicine. The Great Lakes Radio Consortium’s Melissa Ingells has the story:

Transcript

The emerald ash borer is an invasive beetle that’s killed millions of trees in the Great Lakes region. As if that weren’t bad enough, the borer is now starting to threaten Native American customs. For them, the ash trees are more than just landscaping. They’re also used for making traditional ash baskets, canoe paddles, and medicine. The Great Lakes Radio Consortium’s Melissa Ingells has the story:


When I first saw Walpole Island, it was green and misty, out in the middle of the St. Clair River.


I had to take a ferry to get there. Walpole Island sits between the U.S. and Canada, but it doesn’t really belong to either one. It’s owned by the tribes. And they’ve lived there for close to six-thousand years. The island’s full of beautiful old trees, and has a lot of native plants and animals. Quite a few of which are rare.


After the ferry ride, it’s not too far to the Walpole Island Heritage Center. Inside, Kennon Johnson shows off the collection of baskets at the center. He’s the supervisor of the island’s Resource Protection Program.


“These would’ve been working baskets, this would’ve been used for collecting berries, mushrooms, all sort of things, and then some would’ve been for storage, and that’s typically your smaller ones.”


These baskets aren’t just museum pieces. People still make them and sell them. The stronger ones carry food and laundry, and the brightly colored ones are for gifts.


Reta Sands still makes the baskets. She’s a tribal elder. She learned basket making from her grandmother. The wood to make the baskets came from ash trees.


“My grandmother, when she needed money, that’s the time she decided she would go into the bush and chip, the ash trees that were there. She took a chunk out of the tree and looked at it and some way, somehow, she figured out which ones were good, which ones were the best ones to make whatever kind of baskets she was going to make.”


But now the basket-making tradition might be in trouble. The black ash trees in the Great Lakes region are being attacked by the emerald ash borer. The ash borer is an invasive pest that has shown up within the past decade. And it’s spreading like wildfire.


The insect hasn’t invaded Walpole Island yet, but the island is near some infested spots in Michigan and Canada. Kennon Johnson is already thinking about the possible effects of the bugs, when they arrive on the island.


“So we’re talking about some pretty scary issues here if we do get emerald ash borer, if it does what they say it does, if it’s going to wipe out all the ash trees five, ten years down the road, we’re looking at some more scary issues in that we’re going to be culturally impacted.”


Kennon says the tribes don’t know if they’ll have to end their tradition of making the baskets, or if they’ll be able to find a way to fight off the pest. Controlling the ash borer is a work in progress. There hasn’t been enough research on the pest and no one really knows how to get rid of it.


The native people want the freedom to try some of their own solutions on their land—not just at Walpole Island, but other places the tribes manage the forest. Nick Reo is trying to help the tribes be part of the decision making. He’s the American Indian Liason for Michigan State University’s Extension program.


“Basically tribes have been left out of the process, and we’re used to that, I mean that’s the way things happen. People tend to work around us not with us, and I don’t think I’m overstating that. So, I’m trying to get us to the table. Somebody has to push the issue. That’s not just me, but I could be one of the people that’s pushing the issue.
Where the progress is really happening is within the tribal communities. Those are the people who are really going to make a difference.”


Reo says the native communities have centuries of experience with the trees. He says they know the ashes better than anyone else, and he feels someone ought to take advantage of that expertise.


“We have sophisticated natural resource and environmental departments in our tribal communities, we have cultural departments and historic preservation departments, we have basket makers and traditional folks who are going to be the champions, hopefully, in helping to factor in to figuring out solutions for this problem.”


For now, the tribes are waiting, and watching to see the extent of the damage as the emerald ash borer moves through the region. They’re brainstorming some of the ways they might fight the pest as the invasion gets worse.


For the GLRC, I’m Melissa Ingells.

Related Links

New Coalition to Push Great Lakes Restoration Plan

  • Around this time last year, President Bush signed an order to establish the Great Lakes Interagency Task Force and now, a newly-formed coalition wants to help. (Photo courtesy of whitehouse.gov)

Last year, President Bush called on the U.S. Environmental Protection Agency to help coordinate clean-up of the Great Lakes. Now a new coalition of conservation and environmental groups says it wants to help with this latest government effort. The Great Lakes Radio Consortium’s Michael Leland has
more:

Transcript

Last year, President Bush called on the U.S. Environmental Protection Agency to help coordinate cleanup of the Great Lakes. Now a new coalition of conservation and environmental groups says it wants to help with this latest government effort. The Great Lakes Radio Consortium’s Michael Leland has more:


The new group calls itself The Healing Our Waters – Great Lakes Coalition. It’s headed up by the National Wildlife Federation and the National Parks Conservation Assocation.


Members say they’ll be closely involved in the government’s process of drafting a plan to preserve the Great Lakes. Andy Buchsbaum is a co-chair of the Great Lakes Coalition.


“This is our chance of a decade, and if we don’t get the planning process right this time. It could be another decade before the Great Lakes have a chance to recover from some of the damage that they’ve sustained.”


Last May, President Bush created the Great Lakes Interagency Task Force. It’s composed of federal agencies, as well as state and local authorities. The task force will develop a plan this year to address problems like invasive species, pollution, and coastline damage.


Buchsbaum says for the plan to be a success, Great Lakes preservation needs to become a national cause, not just a regional one.


For the GLRC, I’m Michael Leland.

Related Links

STUDY FINDS PDBEs IN HOUSEHOLD DUST

  • Babies and children are frequently in contact with dust. Some scientists worry that potentially-harmful chemicals found in household dust will result in negative health effects. (Photo by Jason Sellers)

Chemicals that are suspected of being hazardous to human health are being found in household dust. The chemicals are flame retardants used in everything from carpet padding to TV sets. The Great Lakes Radio Consortium’s Mark Brush has more:

Transcript

Chemicals that are suspected of being hazardous to human health
are being found in household dust. The chemicals are flame retardants
used in everything from carpet padding to TV sets. The Great Lakes Radio
Consortium’s Mark Brush has more:


The chemicals are known as poly-brominated-diphenyl-ethers, or PBDEs.
Scientists already knew that these flame retardant chemicals where found in
food. Now researchers are finding the chemicals, in household dust.


Heather Stapleton is a research chemist at the National Institute of
Standards and Technology. She authored a study recently published by the
American Chemical Society.


“I went out and collected some house dust samples from areas within the
Washington D.C. metropolitan area, and brought these samples back to the lab
and just did a preliminary measurement looking at PBDE’s in the house dust
samples and found surprisingly high levels in the house dust.”


Researchers are most concerned about how the chemicals affect developing
babies. Babies have more contact with household dust than the rest of us.
The chemicals have been found to cause developmental and nervous system
damage in rats and mice.


For the GLRC, I’m Mark Brush.

Related Links

Harvesting the Wind (Part 1)

  • Wind turbines can be both a blessing for farmers, as a source of extra income... and annoying to the neighbors. (Photo by Lester Graham)

Wind farms of huge turbines are springing up along coastlines,
windy ridges and blustery farmland. Most of us see them from a distance.
The Great Lakes Radio Consortium’s Chris Lehman recently visited some
of them up close… and has the first of two reports on wind energy:

Transcript

Wind farms of huge turbines are springing up along coast lines, windy ridges and
blustery
farmland. Most of us see them from a distance. The Great Lakes Radio Consortium’s
Chris
Lehman recently visited some of them up close… and has the first of two reports on
wind energy…


If you can imagine the sight… there are 63 wind turbines scattered across the
prairie farmland,
their huge blades sweeping around, capturing energy from the wind. Each turbine is
213 feet
high. You can see them from miles around. But it isn’t until you stand directly
underneath the
80-foot long blades as they rotate in the wind that you begin to appreciate their size…


(sound of wind from underneath turbine)


“This is probably a typical day. They’re probably producing at about 30 percent of
what they are
rated at, and probably on average, for a year, this is what you’d expect.”


Christopher Moore is Director of Development for Navitas Energy. The Minnesota- based
company opened the Mendota Hills Wind Farm in northern Illinois just over a year ago.


Q: “What are some of the highest levels that you’ve reached?”


“Each turbine is capable of producing 800 kw, and there are times when we’ve had the
windfarm
working at about maximum.”


Moore says the Mendota Hills Wind Farm produces enough electricity to power about 15-
thousand homes per year. It’s the first wind farm in the state of Illinois.


Brian Lammers is a Project Manager for Navitas Energy. He says the location is
ideal since it’s
windy here nearly all year long…


“The wind here is more robust in the fall, winter and spring. So we have more
production during
those months than we do during June, July, August.”


Unfortunately, the summer months are the months that most often experience peak
demand for
electricity. Because of that, and because it takes so many windmills to generate
lower amounts of
power, it’s unlikely that current wind energy will completely replace fossil fuel
generated power.


(sound of turbines)


On the flat prairies of Illinois, the giant turbines are the tallest structures for
miles around. You
begin to wonder about things like lightning strikes…


“We might have experienced one or two last year. The turbines are protected from
lightning. The
entire wind farm is grounded, so if there is a strike typically it will just be
grounded down to the
ground grid. There’s typically no long-term damage associated with a lightning
strike. But as you
can imagine, they’re the tallest structures around so there are periodic lightning
strikes.”


Q “What about a tornado? This is tornado country…what would happen if one came
through
here?”


“I don’t know. These turbines are built to withstand everything but a direct strike
from a tornado,
so I think the same thing would happen to a wind turbine that would happen to any
large
structure if they were struck by a tornado. You’d probably have some significant
damage.”


(fade up sound inside turbine)


Inside the turbine, there’s a distinct hum as the blades whirl away at the top of
the hollow shaft.
It’s about ten feet across at the base, and a metal ladder allows anyone brave
enough to climb all
the way to the top.


Despite the hum of the turbine’s blades up close, the sound fades away just a few
dozen feet from
the tower. But noise isn’t much of a concern for this wind farm. It’s in the
middle of a soybean
field and there are no neighbors nearby.


Noise is just one of the aesthetic concerns for neighbors of wind farms. Appearance
is another.
The Mendota Hills turbines are coated with a special paint that appears white in
bright sunshine.
But when the sun’s not out, the turbines appear grey, and seem to blend in with the
cloud-covered
sky.


Dennis Cradduck has 19 of the turbines on his corn and soybean farm. He says the
wind farm
hasn’t been a problem. Of course, he’s getting paid by Navitas for allowing the
turbines on his
land. But he says the wind farm has led to an unexpected benefit: getting to meet
people from
across the country who pull off the highway for a closer look…


“We get people almost on a daily basis that drive by on the interstate and see them,
and stop and
want to look at them, and they’re amazed at them, and most—about 99 percent of them
have been
positive comments. In fact, one fellow from North Carolina stopped the other day
and said ‘I wish
we’d build more of these around the country because we need renewable energy.'”


The prospect of more renewable energy is appealing to most environmentalists. But
some worry
that wind farms can be deadly to birds. A study by the National Wind Coordinating
Committee
found that wind turbines kill an average of two birds per year.


Another concern is that windmills disrupt the scenery. But the only view around
here is farmland
as far as the eye can see. And on this brisk day, it isn’t just corn and soybeans
being harvested: it’s
the power of wind.


For the Great Lakes Radio Consortium, I’m Chris Lehman.

Related Links

Fire Retardant Chemicals Ring Alarm Bells

  • Meredith Buhalis and her daughter Zoe. Meredith's breast milk was tested for PBDEs as part of a study by the Environmental Working Group. (Photo by Meredith Buhalis)

Flame retardant chemicals help make our lives safer.
The chemicals are designed to keep plastics and foam from
catching on fire, but the flame retardants are worrying some
scientists because these chemicals are turning up in people’s
bodies, sometimes at alarmingly high rates. The Great Lakes
Radio Consortium’s Mark Brush has more:

Transcript

Flame retardant chemicals help make our lives safer. The chemicals are designed
to keep plastics and foam from catching on fire. But the flame retardants are
beginning to worry some scientists because these chemicals are turning up in
peoples’ bodies. Sometimes at alarmingly high rates. The Great Lakes Radio
Consortium’s Mark Brush has more:


If you take a look around your house, you can find a lot of things that have
flame retardant chemicals in them. They’re in your television set, the cushions
in your couch, and the padding underneath your carpet. They’re known as poly-bromiated-diphenyl
ethers, or PBDEs. And they’re either mixed in or sprayed on plastics and foam to keep a fire
from spreading.


Five years ago a Swedish study found these chemicals were accumulating in women’s breast
milk. Studies in the U.S. followed, and researchers also found PBDEs in Americans, but at
even higher levels. In fact, Americans have some of the highest levels ever measured. And
over time, the levels have been going up.


(sound of baby)


Meredith Buhalis was one of those people measured in a study by an envrionmental organization
called the Environmental Working Group. Buhalis and 20 other first time moms sent in samples
of their breast milk. When the samples were tested, all of them had some level of PBDEs in
them. Buhalis says when she read the results she didn’t know what to think.


“I guess I kind of read the results and the study was like, ‘Oh, well that sort of sucks.’
I wish I knew more about what that meant. ‘Cause I don’t. You know, they don’t know what
that means.”


Scientists don’t know how or if the chemicals affect human health. And some scientists
think the government and the chemical companies aren’t doing enough to look into PBDEs.


(sound of typing)


In his office at the University of Texas in Dallas, Dr. Arnold Schecter is working on an
article about the flame retardants. He’s been studying toxic chemicals for more than thirty
years. He and some of his colleagues think PBDEs are a lot like another type of chemical…


“It reminds us of PCBs. PCBs structurally are similar to the PBDEs. So there is the worry,
or the concern, that they may have many, if not all, the toxic effect that PCBs have on humans.”


So far the data on PCBs strongly suggest that the chemicals can cause cancer in humans as
well as other human health effects such as damage to the nervous and immune systems. The
companies that manufacture the flame retardants say it’s not fair to compare PBDEs with
PCBs. They say the chemicals are vastly different.


But no one really knows whether the chemicals are similar in the way they affect human
health. That’s because no one’s studied the human health effects of PBDEs.


“Unfortunately, there are no published human health studies and I don’t believe any have
been funded by the federal government to date. Nor by industry, nor by any foundations,
which is a bit different than the situation with PCBs and dioxins years ago when many
studies were being funded.”


Some animal studies suggest that the chemicals can permanently disrupt the hormone and
nervous systems, cause reproductive and developmental damage, and cause cancer. All that
makes scientists such as Dr. Schecter especially concerned about the most vulnerable
population – developing babies.


Because of the concerns, the biggest manufacturer of these chemicals in the U.S. has agreed
to stop making two of the PBDE formulations that were found to accumulate in people. Great
Lakes Chemical says production will stop by the end of this year. The chemicals will be
replaced with another type of brominated flame retardant.


The Bromine Science and Environmental Forum is a trade group that represents companies
that make the flame retardants. Peter O’Toole is the group’s U.S. Director. He says so
far the amount of chemicals found in people doesn’t concern the companies, but the upward
trend does.


“And again, it wasn’t of alarming numbers, but the manufacturer was concerned that these
numbers were going up nonetheless. And they thought it was prudent, and they talked to the
EPA and EPA thought it was prudent if there was some sort of mutual phase out of those materials.”


Dr. Schecter says he commends the company for taking this step. But he says even though these
two formulations will be phased out, the flame retardants are already in our environment now.
He says his research has found high levels of PBDEs by wiping the plastic casing on television
sets, and in the dust found in homes. He says what’s in our homes now isn’t going to vanish,
so we need to figure out how the chemicals get into us, so we can avoid potential health problems.


For its part, the U.S. Envrionmental Protection Agency says large-scale human health studies
take a long time to develop. An agency spokesperson says the EPA first needs to learn how a
person becomes highly exposed. After that, they say researchers will be able to ask the question,
“for the highly exposed people, are there any health effects?”


(sound of baby)


That leaves people such as Meredith Buhalis, with a lot more questions than answers.


“We are thinking of having another baby, and I think I would really like to know more about
PBDEs. I think about it when I think about that.” (to her daughter) “Oh thank you. Hi, baby.
Hi, Zoe.”


The Federal government doesn’t plan to regulate the chemicals anytime soon. But some states
aren’t waiting for more studies. A handful of states have placed restrictions on certain
types of PBDEs. And in other states, legislation is pending.


For the Great Lakes Radio Consortium, I’m Mark Brush.

Related Links

Clear-Cut Demonstration Angers Forest’s Neighbors

  • Stands of pine like this have been clear-cut to demonstrate an option that forest owners can take to manage their property. (Photo by Keran McKenzie)

Most forests in the Great Lakes region are privately owned. That concerns the U.S. Forest Service because the agency says many forest owners don’t know how to properly manage their woodlands. The Great Lakes Radio Consortium’s Julie Grant reports that a new education project that demonstrates tree-harvesting techniques has angered some residents:

Transcript

Most forests in the Great Lakes region are privately owned. That concerns the U.S.
Forest Service because the agency says many forest owners don’t know how to properly
manage their woodlands. The Great Lakes Radio Consortium’s Julie Grant reports that a
new education project that demonstrates tree-harvesting techniques has angered some residents:


(sound of chain saws)


Workers are cutting down trees in a fifty-year-old pine crop. At the same time, state
foresters are leading a botanist, a private tree farmer, and a reporter through this forest
education site. One of the foresters, Rick Miller, is directing the chain saws to show what
needs to be cut for what’s called a “crop tree release.”


“This one here we selected out with the orange flags, the trees that show the best form and
dominance in the crown. They have a nice big healthy crown. And then what we’re doing is removing
any trees that are touching the crowns of those ones that are orange, and just opening it up
to give the crown more room up there to spread out and possibly increase their growth and their
vigor.”


A forest owner who wants to make money off his pine stand might do a crop tree release to
improve the quality of the remaining timber. The bigger the tree, the more money it’s worth
to a logging company.


Heading deeper in, a crop of pine trees lined up like soldiers trails to our right, and wilder
hardwoods shade us from the left. There are signs to demarcate different timbering techniques:
improvement cut, understory removal, selective cut. Project manager Frank Corona stops at one
section of oaks, maples and cherries.


“You have small trees, medium trees, some larger trees. Trees are probably selectively
harvested in here and you have all different ages of trees in this stand…”


The cool shaded path abruptly opens up. The lush canopy is replaced by harsh sunlight.


GRANT: “Oh wow, so this is the clear-cut…”


CORONA: “This is the clear-cut.”


The forest is gone… cut to the ground. All that remains are the 120 hardwood stumps on
the torn-up dirt. Botanist Steve McKee suports construction of the demonstration site.
But he also loves trees.


GRANT: “What do you think when you see that clear-cut?”


MCKEE: “Well, clear-cuts are never pretty, ya know? So, uh, I think the most shocking thing
for me is I’ve walked in this my whole life and it was surprising. But I knew it
was coming too, so…”


But some people in the community say they didn’t know the demonstration project would include
clear-cutting older trees. Anne McCormack hikes the Mohican nearly every day, clearing trails,
cleaning garbage, or enjoying the woods. The education site has been roped off from the public
during construction. But she found out there was a clear-cut demonstration in an old growth
section of the forest.


“So, I just was… I was just shocked. I mean I can’t say anything more. I just felt
terrible for… I felt terrible for the trees that stood there since before white settlers
were even in Mohican. And there they just were bulldozed and chain cut for education.
I mean, it doesn’t add up.”


McCormack’s not the only one who’s upset. A lot of people didn’t realize this is what
the Forest Service had in mind. Back at the clear-cut site, Corona says many trees suffer
from disease when they mature to 120 years. He says it’s a good age for private land owners
to consider the clear-cut option.


“This was a time where before they would rot out or anything and we see more damage, more
susceptibility health-wise in the entire stand, we could make a harvest in here and utilize
those trees and start this whole new cycle of growth in here.”


The foresters and forest owners say clear-cutting is a viable option, and just one of the
many examples at the demonstration project in the Mohican forest.


Tree farmer Scott Galloway says people need to understand that owning a forest is another
form of family farming. For instance, he got a call recently from a man who inherited 30
acres and needed money right away. He doesn’t know how to manage his tree crop.


“Where does he go? How do you make the right decisions quickly? The faster he can make
decisions, in his lifetime with his forest, the sooner he’ll be able to enjoy the benefits
of those decisions. It’s all about forestry, wildlife, natural resources. So the more education he
can get, the better those decisions will be and the better off all of us are environmentally because of it.”


The Forest Service says a demonstration project is needed because forest acreage is getting
cut up into smaller and smaller parcels. That means the forests are owned by more and more
people who need to know how to manage their timber. The Forest Service hopes this project
will help them make better decisions.


For the Great Lakes Radio Consortium, I’m Julie Grant.

Related Links

Ijc Report: Mixed Prognosis for Great Lakes

The latest report on the overall health of the Great Lakes shows mixed progress in cleaning up the lakes. The International Joint Commission says there have been some improvements, but there are still many areas that need to be worked on. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

The latest report on the overall health of the Great Lakes shows
mixed progress in cleaning up the lakes. The International Joint
Commission says there have been some improvements, but there are
still many areas that need to be worked on. The Great Lakes Radio
Consortium’s Stephanie Hemphill reports:


The IJC is an agency made up of Canadian and U.S. officials who
monitor the overall health of the Great Lakes. Every two years, the
agency issues a report.


This year’s report says the two governments have made progress in
cutting releases of many toxic chemicals. And scientists are closer to
understanding how global climate change is likely to affect the Great
Lakes.


But the report says other issues require urgent attention. It calls for
government action to reduce mercury emissions from coal-fired
power plants. Mercury can cause nerve and developmental damage
when it’s eaten in fish.


And U.S. Co-Chair Dennis Schornack says the governments should
do more to stop invasive alien species from getting into the Great
Lakes.


“We still don’t have measures in place that would stop ballast water
mediated transfers of species from abroad; we’ve still got a threat
with the Asian carp coming up the Chicago Ship and Sanitary Canal
and incomplete funding for the barrier to stop that invasion there.”


The report also urges scientists to figure out why Lake Erie’s water
quality is degrading again, after years of improvement.


And there are always new challenges, according to Canadian Co-Chair Herb Gray.


“There are new families of chemicals getting into the water. The fire
retardants, which are great for your furniture, but not great in drinking
water.”


This was the 12th biennial report on Great Lakes water quality. The
report says it’s now time for a comprehensive review of the
agreement between the U.S. and Canada to clean up and protect the
Great Lakes.


For the Great Lakes Radio Consortium, I’m Stephanie Hemphill.

Related Links