An Alternative to Waste Incinerators

  • A new process called alkaline hydrolysis is forecasted to be a cheaper, safer way to dispose of animal carcasses. (Photo by Dr. Beth Williams, University of Wyoming, courtesy of CWD Alliance)

Animal research labs usually get rid of carcasses by burning them in incinerators. Now, a new more environmentally friendly technology is being used to dispose of the diseased dead animals and the lab supplies they contaminate. The new method has worked well enough that hospitals are considering it as a way to dispose of medical waste. The Great Lakes Radio Consortium’s Julie Halpert reports:

Transcript

Animal research labs usually get rid of carcasses by burning them in incinerators. Now, a new more environmentally friendly technology is being used to dispose of the diseased dead animals and the lab supplies they contaminate. The new method has worked well enough that hospitals are considering it as a way to dispose of medical waste. The Great Lakes Radio Consortium’s Julie Halpert reports:


Until recently, the only safe way to destroy diseased tissue and other infectious waste was to burn it in an incinerator. But dangerous chemicals such as dioxins spew from the incinerator smokestacks, and burning leaves behind a toxic ash.


(sound of machine whirring)


Now, there’s an alternative to burning. Dr. Gordon Kaye stands in a spotless room beside one of the units manufactured at a company he helped found, WR Squared, in Indianapolis, Indiana. The unit will eventually be used to dispose of 5,000 pounds of dead animals – about the equivalent of five large cows – that were used for veterinary research.


But there will be no smoke. There’ll be no fire.


Kaye’s idea for a new type of disposal technology began 12 years ago when he was a pathology professor at Albany Medical College. He was frustrated with how much it cost to dispose of dead research animals. So, he started experimenting with a new technology. And alkaline hydrolysis was born.


“Well, there are no air emissions from it. It’s a sealed system. It takes place in a hermetically sealed pressure vessel. No dangerous products are produced in it because of the temperature which it takes place.”


Alkaline hydrolysis works like this: infectious waste goes into a tightly sealed vessel, along with strong alkalis which are very caustic. The waste is then cooked at temperatures well above boiling. A chemical reaction causes the waste to break down. The infectious components are neutralized. When it’s over, you end up with two products: a sterile, water-like solution, that can head to a sanitary sewer system, and sterile crushed bones, the consistency of powder, that can be used as fertilizer. Because the end products are clean, they don’t require complicated disposal, so the process is cheaper than incineration.


WR squared now has 60 units in 15 states, primarily at research facilities. The U.S. Department of Agriculture has purchased several of them. New York was the first state to allow use of the technology. Ira Salkin directed that state’s medical waste program when it approved WR squared’s process.


“It has less potential problems than is being found with incineration and the use of incineration in the U.S. is decreasing and therefore their system holds great promise. As the numbers of incinerators decrease, one finds they have this alternative to be used to treat pathologic material.”


Environmentalists agree with Salkin that the technology is sound. Horhay Emmanuel is with Health Care Without Harm. He notes that it’s especially effective for one troublesome type of waste, cattle dead from Mad Cow disease.


“Not only does it destroy infectious agents, but it also destroys prion-contaminated waste. And prions are what are believed to cause things like Mad Cow disease, which are difficult to destroy, even by incineration, so WR squared has been shown to destroy these prions in the contaminated waste.”


Last April, The Environmental Protection Agency approved alkaline hydrolysis, along with incineration, as a way to treat Mad Cow diseased waste. And WR Squared’s Gordon Kaye sees that as a big future market.


Horhay Emmanuel, with Health Care Without Harm, says while alkaline hydrolysis is generally good for the environment, there is one concern. The fluid that’s produced could overwhelm some small town’s sewer systems. The company says in communities with small sewer systems, the solution can be released more slowly or during off-peak hours.


So, alkaline hydrolysis process is cheaper, it pollutes less, government agencies like it, and environmentalists find little to criticize.
Now, the company is broadening its reach to treat hospital waste. Many hospitals are using smaller, not very efficient incinerators that pollute more.


WR Squared’s Gordon Kaye says he expects big growth with this new method to dispose of medical and infectious waste as labs and hospitals look for ways to replace their incinerators over the next several years.


For the GLRC, I’m Julie Halpert.

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New Clean Air Rule in Place

  • The EPA is planning big cuts in certain air pollutants, but environmentalists disagree on whether the rule will help get rid of smog. (Photo courtesy of the National Institutes of Health)

The U.S. Environmental Protection Agency says Midwest states will have to develop ways to reduce emissions of two air pollutants that can drift for hundreds of miles. The Great Lakes Radio Consortium’s Chuck Quirmbach reports on a new EPA rule:

Transcript

The U.S. Environmental Protection Agency says Midwest
states
will have to develop ways to reduce emissions
of two air pollutants that can drift for hundreds of miles. The
Great Lakes Radio Consortium’s Chuck Quirmbach reports on a new EPA rule:


The EPA wants big cuts in emissions of nitrogen oxide
oxide and sulfur dioxide in 28 eastern states.


The agency predicts reductions will
largely come through emissions cuts at coal burning power
plants, possibly through programs that allow cleaner-burning
utilities to sell their pollution credits to others, as long as
total emissions are reduced.


Bharat Mathur is acting administrator of the EPA’s Midwest region. He says the rule will cut smog and soot while preserving the use of coal as a viable energy source.


“That’s good for coal producing states in our region such as Illinois, Indiana and Ohio.”

Some environmental groups are happy with the EPA rule. But others
say some urban counties in the midwest would still not meet federal
standards for ground-level smog.


For the GLRC, I’m Chuck Quirmbach.

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Creating Particle Pollution Warning System

  • Smokestacks, diesel engines, and a number of other things cause particulate emissions, which can create some negative health effects, and aggravate existing health problems. (Photo by Kenn Kiser)

In the summer, local weather forecasts often
include information about dangerous ozone levels.
But scientists are learning more and more about
another type of pollution that can reach harmful
levels even in the winter months. And as the Great
Lakes Radio Consortium’s Sarah Hulett reports… we
might be hearing more about this type of pollution in
our daily weather reports:

Transcript

In the summer, local weather forecasts often include information about dangerous ozone levels. But scientists are learning more and more about another type of pollution that can reach harmful levels even in the winter months. And as the Great Lakes Radio Consortium’s Sarah Hulett reports, we might be hearing more about this type of pollution in our daily weather reports:


Parts of the region recently reached “code red” for poor air quality. And
that had some people perplexed. Warnings about dangerous levels of ozone are
frequent on hot summer days, especially in urban areas. But this was the
middle of winter.


The warnings were for high levels of tiny particles that federal regulators
only recently began monitoring. They’re spewn from diesel engines,
factories, power plants, and fireplaces. Air monitors in Michigan,
Minnesota, Pennsylvania, and Indiana recently registered unhealthy levels of
these particles – some of them for a few days straight.


Jim Haywood says the problem was an unusual weather event for this time of
year. Haywood is a meteorologist with the Michigan Department of
Environmental Quality. He says a high pressure system moved very slowly over
the Great Lakes region for several days. When you get high pressure, the air
below sinks, generating a layer of warm air that acts like a lid.


“So that warm air that was sinking effectively stops at a few hundred feet
from the surface of the ground. It acts like a cap. It does not let any of
the pollutants that are released at the surface pop up through that cap.”


So all the pollutants that would have gotten picked up and diluted by the
wind instead just hung out for days – building up, and reflecting sunlight
to create haze.


Eventually, a cold front pushed the high pressure system out of the way, and
took the pollution with it. But what about those few days when the Environmental Protection Agency was warning about unhealthy levels of particulate pollution? For people with
heart or lung disease, agency health officials say short-term episodes can
lead to asthma attacks or even heart attacks. And they say healthy children
and adults can experience throat and lung irritation.


Susan Stone is an environmental health scientist with EPA. She says
particle pollution warnings could soon become a staple of the daily weather
report – much like the familiar summer ozone warnings.


“With ozone, we have the network in place to be able to deliver those
forcasts, people are used to hearing that on TV, and we are working to
provide that same level of coverage for particle pollution.”


Stone says EPA is rolling out a new program called Enviro-Flash
nationwide. It sends real-time air quality information to people’s email
accounts or pagers. EPA is offering the service through state
environmental agencies. And beginning in 2010, areas that register
unacceptable levels of particle pollution will be required to clean up their
air.


For the Great Lakes Radio Consortium, I’m Sarah Hulett.

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Will New Auto Technologies Lead to Job Losses?

  • Hybrid cars like the Honda Insight are becoming more popular with consumers. However, a study predicts a decrease in jobs if sales of hybrids increase sharply. (Photo by Paige Foster)

A new report says new automotive technology such as gasoline-electric hybrid engines could cost thousands of American jobs. Researchers say states with large numbers of autoworkers could be hurt the most. We have more from the Great Lakes Radio Consortium’s Michael Leland:

Transcript

A new report says new automotive technology such as
gasoline-electric hybrid engines could cost thousands of American
jobs. Researchers say states with large numbers of autoworkers
could be hurt the most. We have more from the Great Lakes Radio
Consortium’s Michael Leland:


Sales of gasoline-electric hybrids amounted to less than one-percent of all
the vehicles sold in the U.S. last year. But researchers at the University
of Michigan’s Transportation Research Institute say hybrids, and vehicles
made with advanced diesel powertrains, could make up eleven percent of total
sales by 2009.


If that happens, the Institute projects it could cost the
U.S. about 200-thousand jobs. Pat Hammett directed the study. He says that
figure includes both actual jobs lost and new jobs not created.


“A lot of the hybrid components, for example, actually are new componentry
inside a vehicle. So, it isn’t necessarily that you are losing jobs in some
of that area, it could just be an example of not getting the growth.”


Hammett says auto-producing states like Michigan, Ohio and Indiana would be
affected more than others. The report says states could reduce jobs lost to
new technologies by offering tax credits to encourage production in the
United States.


For the Great Lakes Radio Consortium, I’m Michael Leland.

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Methyl Bromide Use to Increase

Starting January first, the U.S. will let farms and certain
other businesses use more of the pesticide methyl bromide. But
environmentalists may go to court over the issue. The Great Lakes
Radio Consortium’s Chuck Quirmbach reports:

Transcript

Starting January 1st, the U.S. will let farms and certain other businesses use more
of the pesticide
methyl bromide. But environmentalists may go to court on the issue. The Great
Lakes Radio
Consortium’s Chuck Quirmbach reports:


Methyl bromide is used to sterilize soil before planting and to fight invasive
insects that come
into the U.S. on wooden pallets. But scientists say emissions of methyl bromide
harm the ozone
layer. In the 1980s, the U.S. agreed to phase out use of the compound, except for
critical cases
where there are no feasible alternatives.


Methyl bromide use is only a third of what it was in 1991. But the Bush
administration wants to
let that figure rise to 37 percent this coming year. David Doniger is with the
Natural Resources
Defense Council. He says he doubts whether more methyl bromide is needed.


“The problem is the critical use exemptions have mushroomed… way out of control.
So we’re
going backwards.”


The U.S. has agreed to reduce use of methyl bromide in 2006… but critics say that
promise may not be kept. The NRDC says it’s likely to challenge the 2005 plan in
court. An
Indiana company is one of the nation’s largest suppliers of methyl bromide.


For the Great Lakes Radio Consortium, I’m Chuck Quirmbach.

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Containing Chronic Wasting Disease

  • An elk showing symptoms of chronic wasting disease. CWD affects elk, white-tailed deer and mule deer. It's not known to be naturally transmissible to livestock or people. (Photo by Dr. Beth Williams, University of Wyoming, courtesy of CWD Alliance)

Throughout most of the Great Lakes region,
there are huge numbers of white-tailed deer. Deer don’t have the natural predators that they once did… so states rely on hunters to manage the deer herds. Recently, that’s become even more important with the discovery of a fatal disease. The Great Lakes Radio Consortium’s Rebecca Williams reports there’s extra pressure on hunters to keep the disease from spreading:

Transcript

Throughout most of the Midwest/Great Lakes region, there are huge numbers of
white-tailed deer. Deer don’t have the natural predators that they once did…
so states rely on hunters to manage the deer herds. Recently, that’s become even
more important with the discovery of a fatal disease. The Great Lakes Radio Consortium’s
Rebecca Williams reports there’s extra pressure on hunters to keep the disease from spreading:


“How are you today? Successful morning, or are these from yesterday? This
morning… oh okay…”


Hunters are bringing their deer into a check station. Department of Natural Resources staff
determine the age of the deer by looking at their teeth. If it’s an adult deer, a technician
saws the head off so brain tissue and lymph nodes can be tested for chronic wasting disease.


(sound of deer head being cut off)


Chronic wasting disease, or CWD, affects white-tailed deer, mule deer and elk. It’s always
fatal. So far, there’s no evidence that CWD can hurt people or livestock. For now, most wildlife
managers are just worried about the health of the deer herds.


Western states such as Colorado and Wyoming have been dealing with CWD for decades. Wisconsin
found the disease in wild deer in early 2002. Illinois found the disease later the same year.
So far, it hasn’t shown up in wild deer in neighboring states, such as Indiana, Michigan or
Minnesota.


Wisconsin has a lot of deer crowded into a relatively small space, and that worries state
officials. Tami Ryan is a wildlife supervisor with the Wisconsin Department of Natural Resources.


“Some of the genetic research that’s been done to date on Wisconsin deer, they are not
resistant to CWD. It could be severely detrimental to the herd, which is why we feel so
strongly about trying to contain the disease where it exists and prevent it from spreading.”


Wisconsin’s attempting what state officials call aggressive herd reduction. At first, the
state wanted to kill all the deer in the heart of the disease eradication zone. Now, the state
wants to kill five of every six deer in those zones. That means reducing the deer to fewer than
five per square mile.


The Department of Natural Resources is trying to do this by making hunting seasons longer
and handing out more permits. In the disease eradication zones, people can hunt on private
land all fall and all winter – September to March.


Many hunters say they like the opportunity to take a few extra deer. Mike Snodgrass hunts
regularly in one of the areas where the state’s trying to reduce the herd.


“From just being out and observing the deer, there’s a huge number of deer out in the woods.
I’ll do my part, I enjoy the venison, and so I’ll take a couple of does out, no problem.”


The Department of Natural Resources says hunter participation is crucial for controlling
chronic wasting disease. That’s because the state doesn’t have nearly enough wardens to kill
all those deer.


State officials worried at first that CWD would turn hunters off from the sport. But from some
recent surveys, it’s been clear that most hunters say they understand the problem and they still
want to hunt where they’ve hunted every year – whether or not there are sick animals in those
areas.


The state’s also reaching out to private landowners. Most of the land in the disease zones is
privately owned. The state’s encouraging landowners to open up their land to more hunters.


Mike Albert is a landowner who hunts. He owns 275 acres near where the first three infected
wild deer were found. Albert says he’s hesitant to open up his land to strangers, but he does
let friends and family hunt on his land. He says something has to be done about chronic wasting
disease, but he says he’s afraid the state’s going too far.


“It’s not that I don’t feel a responsibility to help. As an ethical hunter when you’re asked to
just blatantly shoot every deer you see no matter how, it’s hard to overcome that. They’re asking
us to totally devastate our herd, ruin our tradition, and do all this stuff before we know for
sure whether it’s the right thing to do.”


Albert says more of the effort should be focused on understanding the disease before acting.
Researchers are still asking many questions about the disease itself. It’s still not known
exactly how the disease is transmitted.


Beth Williams is a veterinarian at the University of Wyoming. She’s also a leading expert on
CWD. Williams says there aren’t any proven methods for stopping CWD. She says killing off
much of the deer herd is controversial, but the state’s options are limited.


“I think it was a good idea for Wisconsin to see whether or not taking fairly radical steps
like they have to do their herd reduction, whether or not that might stop CWD. The alternative
is, based on everything that we know, if you don’t try and do something, the disease is then
going to spread.”


Williams says it’ll be years before anyone can tell whether reducing the deer herds
will help. But many people agree chronic wasting disease needs to be stopped as soon
as possible, before it spreads to deer herds in neighboring states.


For the Great Lakes Radio Consortium, I’m Rebecca Williams.

Related Links

Major Dock Corrosion Stumps Officials

  • The Duluth Seaway Port Authority's bulk cargo dock is typical of many in the port. Officials are troubled by corrosion appearing on the docks in the harbor - the steel is corroding much faster than normal. (Photo by Bob Kelleher)

Corrosion is eating away at the steel walls that hold one of the Great Lakes’ busiest harbors together. The corrosion is unlike anything known to be happening in any other Great Lakes port. But other port officials are being encouraged to take a closer look at their own underwater steel. The Great Lakes Radio Consortium’s Bob Kelleher reports:

Transcript

Corrosion is eating away at the steel walls that hold
one of the Great Lakes’ busy harbors together. The
corrosion is unlike anything known to be happening in
any other Great Lakes port. But other port officials
are being encouraged to take a closer look at their own
underwater steel. The Great Lakes Radio Consortium’s
Bob Kelleher reports:


Some kind of corrosion is eating away at the Duluth
Seaway port’s docks. The docks are those long
earth-filled metal rectangles where ships from around
the world tie up to load and unload. Those docks are
lined with sheets of steel, and the steel is rusting
away. Jim Sharrow is the Duluth
Seaway Port Authorities Facilities Manager.


“It’s corroding quickly – much faster than people expect
in fresh water. And our main concern is that we’ll lose
the integrity and the strength of the dock long before
expected, and have to do steel replacement at $1,500 or
more per lineal foot, much earlier than ever would have
been expected.”


Corrosion should be a slow process in Duluth’s cold
fresh water. But, Sharrow says, there’s evidence it’s
been happening remarkably quickly for about thirty years.


“What we seem to see here is corrosion that started in
the mid 1970s. We have steel that’s 100 years olds
that’s about as similarly corroded to steel that is 25
to 30 years old.”


It’s a big problem. There’s about thirteen miles of
steel walls lining docks in the harbor that serves
Duluth, Minnesota and Superior, Wisconsin. There’s half
again as many feet of wooden docks, held together with
steel pins. There’s corrosion on the legs of highway
bridges and the giant
steel ore docks that ship millions of tons of taconite
– a type of iron shipped to steel mills in Gary,
Indiana and Cleveland, Ohio.


“We characterize this as a 100-million dollar problem in
the harbor. It’s a huge problem, and what is so odd
about this is that we only see it happening in the
navigational area of the Duluth-Superior Harbor.”


The harbor links the St Louis River with Lake Superior.
Go a few miles up the river and there’s little corrosion
. So it doesn’t seem like the problem’s there. But, back
in the harbor, at the current rate of corrosion, Sharrow
says, the steel will fail quickly.


“I figure that in about 10 years at the current rate,
we will have to start replacing steel.”


“Particularly marginal operators could decide rather
than repair their docks it would be better for them to
go out of business, and we’re hoping that that isn’t
the case here.”


While the cause is a mystery, there’s no shortage of
theories. It could have something to do with stray
electrical voltage; water acidity; or the kinds of
steel manufactured in recent years. Chad Scott
discovered the corrosion in the late 1990’s. He’s an
engineer and a diver. Scott suspects
a micro-biological connection. He says there might be
something growing in small round pits that form on the
steel.


“We cleaned up the water. That’s the main thing –
that’s one of the main changes that’s happened since
the 70s, is we’ve cleaned up our water. We’ve cleaned
up our harbor, which is a good thing. But, when we
cleaned things up we also induced more dissolved oxygen
and more sunlight can penetrate the water, which tends
to usually promote more growth – more marine
microbiology growth.”


A team of experts met in Duluth in September to share
ideas. They came from the U.S. Navy, The Army Corp of
Engineers, and Ohio State University. And they agreed
there’s something odd going on – possibly related to
microbes or water chemistry. They also recommend that
other Great Lakes ports take a closer look at their
underwater steel. Scott says they at least helped
narrow the focus.


“We have a large laundry list right now. We want to
narrow that down and try to decide what is the real
cause of this corrosion. And these experts, hopefully,
will be able to get us going on the right direction,
so we can start doing testing that will identify the
problem.”


With the experts recommendations in hand, port
officials are now planning a formal study. If they
do figure out the cause, then they’ve got to figure
out how to prevent it. They’re in a race with
something, and right now they don’t even know with
what.


For the Great Lakes Radio Consortium, I’m Bob Kelleher.

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Another Cutback in Amtrak Rail Service

  • Amtrak is starting to phase out the Three Rivers route. The National Association of Railroad Passengers is trying to prevent this from continuing. (photo by Michael Jastremski)

Phase-outs have started for an Amtrak passenger train that crosses through the Midwest. It’s the latest in a series of service cutbacks over the last few decades. But some riders are trying to reverse Amtrak’s decision. The Great Lakes Radio Consortium’s Chuck Quirmbach recently rode the rail line in question and talked with some passengers about the pending loss of service:

Transcript

Phase-outs have started for an Amtrak passenger train that crosses through the Midwest. It’s the latest in a series of service cutbacks over the last few decades. But some riders are trying to reverse Amtrak’s decision. The Great Lakes Radio Consortium’s Chuck Quirmbach recently rode the rail line in question and talked with some passengers about the pending loss of service:


(sound of train)


Amtrak has started reducing service on the Three Rivers line between Chicago and Philadelphia. By next April, people in Nappanee, Indiana and Akron, Youngstown, and Fostoria, Ohio will no longer have a passenger train in their city.


On a recent morning, Chicago resident Martin Escutia was riding the Three Rivers to see a friend in Youngstown. He had just flown to Chicago from Central America.


“Being as tired as I was, having the opportunity to be able to bed down and wake up at my destination it’s good convenience, it’s good to have.”


Escutia says losing the Three Rivers will put more people on highways and take away a transportation option. The National Association of Railroad Passengers is trying to restore the cutbacks. But Amtrak says Three Rivers service between Pittsburgh and Chicago was only started to haul bulk mail, and Amtrak is dropping the mail service because it doesn’t make enough money.


For the Great Lakes Radio Consortium, I’m Chuck Quirmbach.

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Usda to Boost Use of Ozone-Depleting Chemical?

  • To prevent invasive insects from getting into the country, officials want to increase the application of methyl bromide to wooden pallets. (photo by Kevin Connors)

The USDA wants to increase the use of methyl bromide to keep invasive insects from getting into the country. But some environmentalists are fighting the plan, saying the chemical will do more harm than good. The Great Lakes Radio Consortium’s Chuck Quirmbach explains:

Transcript

The USDA wants to increase the use of methyl bromide to
keep invasive insects from getting into the country. But
some environmentalists are fighting the plan, saying the
chemical will do more harm than good. The Great Lakes
Radio Consortium’s Chuck Quirmbach has more:


The U.S. Agriculture Department wants to nearly double the
use of methyl bromide. The compound is used as a pesticide
to fight invasive insects that come into the U.S. on wooden
pallets. But scientists say methyl bromide is harmful to the
stratospheric ozone layer. The Natural Resources Defense Council
plans to sue the government over its plan. David Doniger is with
the NRDC. He says more use of methyl bromide might reverse advances
made in protecting the upper atmosphere.


“The ozone layer has been badly hurt. It’ll take a long time – 50 years –
to fully heal it… and only if we get rid of all the ozone depleting chemicals.”


Doniger contends the Indiana company that’s a key producer of methyl bromide
has many other products and wouldn’t see any job losses if the government
plan is halted. The USDA argues there are no feasible alternatives to methyl
bromide, so the government says the chemical deserves an exemption from a
1987 international treaty that targets ozone depleting compounds.


For the Great Lakes Radio Consortium, I’m Chuck Quirmbach.

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State Tops List in Carcinogenic Air Emissions

New numbers released by the government show one state pollutes more than any other in the region when it comes to toxic chemicals released into the air. The Great Lakes Radio Consortium’s Mark Brush reports:

Transcript

New numbers released by the government show one state pollutes more than any
other in the region when it comes to toxic chemicals released into the air.
The Great Lakes Radio Consortium’s Mark Brush reports:


In the eight states surrounding the Great Lakes, Indiana tops the list for
cancer-causing chemicals released into the air. The EPA’s Toxic Release
Inventory shows that 34 million pounds of these chemicals were released in 2002.
Indiana is responsible for 8.7 million pounds of that. That’s more than one
quarter of the entire region’s release of that kind of pollution.


Karen Teliha is with the Indiana Department of Environmental Management.
She says these chemicals are mostly released in the northern counties of the
state:


“Our number one carcinogenic chemical that’s released is Styrene. And it’s one
that we’ve been working on with the fiber reinforced plastics industry, and in
Indiana that’s mainly RV and boat manufacturers.”


Teliha concedes that the amount is high, but she says it’s been declining over
the last five years. Environmentalists say the state isn’t doing enough to curb
the release of these cancer-causing chemicals.


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

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