Month: September 2007

More Scrap Tires Reused

  • A variety of products using crumb rubber, which is manufactured from scrap tires. (Photo courtesy of Liberty Tire)

Americans get rid of almost 300 million scrap tires every year.
Historically, a lot of used tires have ended up at the bottom of
ravines or in huge tire piles. These piles have created eyesores,
toxic fire traps and places for mosquitoes to breed. But Ann Murray
reports that the days of widespread illegal dumping and monster tire
piles are waning:

Transcript

Americans get rid of almost 300 million scrap tires every year.
Historically, a lot of used tires have ended up at the bottom of
ravines or in huge tire piles. These piles have created eyesores,
toxic fire traps and places for mosquitoes to breed. But Ann Murray
reports that the days of widespread illegal dumping and monster tire
piles are waning:


Michelle Dunn is making her way through shoulder high knotweed to
show me an urban tire dump:


“This is the start of the tires. They’re all entwined in here.”


About 300 tires have been chucked over the hill in this quiet
Pittsburgh neighborhood. Dunn’s with a non-profit that helps
communities clean up old dump sites. She says illegal tire dumping is
still a problem but not the gargantuan problem it used to be:


“I don’t think you’re seeing new major piles appearing. The regular
Joe isn’t dumping as many tires because people are now becoming
educated. They have a service they can take their tires to have them
disposed of properly.”


In many states, the place to take old tires is now the neighborhood
tire store. Since the early 1990s, about 35 states have required tire
dealers to collect small fees to dispose of used tires. Now fewer
people dump tires and about 4 out of 5 scrap tires have been
cleaned up. Numbers have nosedived from a billion stockpiled tires to
less than 200 million.


Not all states have had equal success reducing their cache of old
tires. Some states such as Alaska, Wyoming and Nevada are still
struggling. Their rural landscapes have made it hard to catch illegal
dumpers and collect tires. Many other states have stepped up
enforcement. They now make dumpers pay to clean up waste tire
sites and register scrap tire haulers. But Matt Hale says new laws
aren’t the only reason scrap tire programs are working. Hale directs
the division of solid waste for the US Environmental Protection
Agency:


“In many cases a successful program is the result of being near
markets for tires. In the southeast for example, tires are in demand as
a fuel use and that certainly makes state tire programs in that part of
the country easier.”


Stricter waste tire laws have made it easier for the tire
recycling industry to take hold. Dave Quarterson is a senior director
with Liberty Tire. Liberty’s the biggest tire recycling company in the
country:


“It has been difficult for companies like ours in the past to look at
having to invest 5 or 10 million dollars into a facility to recycle tires
and then to have to compete on the street with a guy with a $1000
pickup truck who’s rolling ’em down an embankment somewhere.”


In 1990, very few of the 300 million scrap tires generated each year
were re-used. Today about 90 percent are recycled. A majority of
these tires are chipped and shipped to cement kilns and paper mills
to be burned for fuel. A fuel source that US EPA says is relatively
safer than burning coal but environmental groups say is still polluting.


Tire recyclers like Liberty Tire are now in big demand. Liberty uses
almost 75 million scrap tires a year. Their headquarters
plant specializes in making “crumb” rubber. Crumb’s used in
everything from football field turf to brake lining. It’s made from
shredded tires that are frozen with liquid nitrogen and then pulverized
into various sized bits.


Dave Quarterson, says tire recyclers are starting to move away from
producing tire chips for fuel to making newer products like crumb
rubber:


“We’ve got a lot more money into producing it but it’s a lot more
rewarding financially.”


States are also encouraging new uses for the decades old tires that
still remain in big, abandoned piles. Even with this backlog of old
scrap tires, states and recyclers are optimistic that growing markets
and new laws mean more and more scrap tires will have a useful
second life.


For the Environment Report, this is Ann Murray.

Related Links

E-85 Pumps Not Ul Safe

  • Gas station pumps and underground storage tanks are not yet UL certified to handle E-85. (Photo by Lester Graham)

With thousands of flex-fuel vehicles hitting the road, gas stations are adding E-85 to
their fuels. E-85 is 85 percent ethanol and 15 percent gasoline. But, as Lester
Graham reports, storing and pumping E-85 fuel is a major concern because, so far,
no equipment has been certified as safe to handle it:

Transcript

With thousands of flex-fuel vehicles hitting the road, gas stations are adding E-85 to
their fuels. E-85 is 85 percent ethanol and 15 percent gasoline. But, as Lester
Graham reports, storing and pumping E-85 fuel is a major concern because, so far,
no equipment has been certified as safe to handle it:


The Department of Energy’s Handbook for Handling, Storing, and Dispensing E-85
warns, “certain materials commonly used with gasoline are totally incompatible with
alcohols.” Other government guidelines give detailed instructions about storing E-85
in underground storage tanks and the pumps people use to fill their vehicles. But,
with more and more filling stations adding E-85 pumps, not everyone is following the
instructions and warnings.


Brad Hoffman is with the nation’s largest underground storage tank service
company, Tanknology. The company inspects gas station distribution systems:


“I think they pretty much just took for granted that their tank could store whatever
fuel they put into it and they didn’t really check the compatibility of the tank and the
other piping and dispensing equipment. They didn’t really confirm that it was
compatible with the E-85 that was being delivered.”


And some of the fiberglass underground storage tanks are not compatible. Ethanol
can soften the polymers in certain tanks. That can make them weaker and might
cause them to leak. There’s also concern that leak detection equipment might also
be damaged by ethanol. So if a tank is leaking, it might go undetected. And it’s not
just the tanks. There are questions about compatibility with the pumps filling flex-fuel
vehicles.


The ethanol industry says there have been no major problems with tanks or pumps
so far. Matt Hartwig is with the Renewable Fuels Association:


“Most gas station operators will use tanks that are appropriate. They will clean the
tanks. They would do the proper maintenance and the proper preparation required
to install E-85 infrastructure. Because of the nature of ethanol, you do need a
dedicated tank and pump system to dispense the fuel. I don’t think consumers and
the American driver have anything to fear.”


But fuel tank and gas pump inspectors are not as sure. Brad Hoffman with
Tanknology says government guidelines give checklists of recommendations on how
to prepare tanks and pumping systems:


“Being realistic, I think there’s a chance that some marketers may, you know, for
whatever reason, may not thoroughly check each of those items. And there could be
some problems, either with the tanks or the dispensing systems.”


Problems that could cause leaks.


Underwriters Laboratories is the safety testing organization that certifies the safety of equipment storing and pumping fuels. John Drengenberg is with
UL. He says it was only last year that a manufacturer asked for requirements for equipment handling E-85. Drengenberg says old gasoline equipment might not
be safe to pump E-85:


“The alcohol is different in that it’s much more corrosive. We know for a fact that
alcohol will attack soft metals, in particular aluminum and copper, things of that type,
and even plastics. So, therefore, what worked for gasoline dispensers, may not work
for ethanol dispensers.”


Drengenberg says gaskets, seals, and o-rings in the pump, hose or handle could
deteriorate and mean leaking fuel at the pump:


“With this type of fuel, ethanol, we’re mostly worried about fire hazards. If there is a
leak – let’s say for some reason ethanol attacked a gasket or a seal on a dispenser,
you could have a fuel leak – the fuel leak could be very dangerous in that any spark
could set it off. You could have a fire or possibly an explosion. So, that is the
concern that we have, certainly. And that is why we’re developing requirements for
these ethanol dispensers.”


UL expects to issue requirements for equipment by the end of the year. In the
meantime, whether the tanks and pumps offering E-85 at your gas station are safe is
up to the judgment of the local fire chief, fire marshal, or other local official.


For the Environment Report, this is Lester Graham.

Related Links

Microwave Popcorn Disease

  • Federal agencies have been aware of a link between artificial butter flavoring in microwave popcorn and a debilitating respiratory illness. The illness has shown up in factory workers - and recently one consumer of microwave popcorn made the news when he also got sick. (Photo by Lester Graham)

Microwave popcorn lovers are thinking twice about their favorite snack. Lester
Graham reports, a lung disease associated with popcorn packers might be a risk for
some popcorn snackers:

Transcript

Microwave popcorn lovers are thinking twice about their favorite snack. Lester
Graham reports, a lung disease associated with popcorn packers might be a risk for
some popcorn snackers:

For years federal agencies have been aware that there’s a link between an artificial
butter flavoring and lung disease. Some workers at factories that pack popcorn in
microwavable bags are exposed to the chemical diacetyl. It causes a debilitating
respiratory illness thatís now called “popcorn workers lung.”


No one really thought consumers were at any risk, since exposure to diacetyl is
limited. But a recent New York Times article revealed a microwave popcorn lover
who ate two bags a day and stuck his nose into the bag to inhale the buttery odor of
diacetyl also contracted “popcorn workers lung.”


Congress is pressuring various federal agencies to set a health standard for
exposure to diacetyl to protect workers in popcorn packaging factories and other
industries that use the chemical.


For the Environment Report, this is Lester Graham.

Related Links

New 2008 Fuel Economy Stickers

  • A look at the new window sticker that will be seen on all 2008 models. (Photo courtesy of the EPA)

Starting this year you’ll see new fuel economy window stickers on cars and trucks. And as Mark Brush reports – the gas mileage displayed on these stickers will be closer to the actual mileage you’ll experience:

Transcript

Starting this year you’ll see new fuel economy window stickers on cars and trucks. And as Mark Brush reports – the gas mileage displayed on these stickers will be closer to the actual mileage you’ll experience:


The EPA gas mileage stickers will appear on all 2008 cars and trucks. And the Environmental Protection Agency says these stickers are more accurate. No more inflated gas mileage claims. Mileage estimates have been based on old tests that don’t reflect how we drive today.


David Friedman is with the Union of Concerned Scientists. He says car buyers might get sticker shock:

“Well what they will see is no matter what the car or truck they get they will see lower numbers. In fact, depending on the size class they are dealing with, the new window sticker numbers are anywhere from 10 percent to 15 percent lower on a combined basis than the old numbers.”


Consumers won’t just see the lower miles per gallon numbers. They’ll also see a bar graph that compares each vehicle’s gas mileage to others in its class.


For the Environment Report, I’m Mark Brush.

Related Links

Nuke Waste Storage at Power Plants

The federal government is being blocked by judges and state officials from building a
nuclear waste storage site in Nevada. While the legal fight goes on, nuclear power
generators store their radioactive waste at their plants. Lester Graham reports:

Transcript

The federal government is being blocked by judges and state officials from building a
nuclear waste storage site in Nevada. While the legal fight goes on, nuclear power
generators store their radioactive waste at their plants. Lester Graham reports:


The Department of Energy has been stumbling through legal hurdles and political
setbacks for 20 years now. It’s been trying to establish Yucca Mountain in Nevada
as the nation’s storage site for spent nuclear fuel and other highly-radioactive
material.


The Los Angeles Times reports the most recent challenge was a judge’s
ruling that makes it difficult for the Energy Department to drill test holes at the site. It
will likely cause a domino effect of delays.


Many environmentalists and others don’t want Yucca Mountain to ever receive the
nuclear waste. But, in the meantime thousands of tons of spent nuclear power rods
are being stored at the nuclear power plants… and many of those power plants are
located near rivers, lakes and towns. Some of the storage is in buildings, some of it
in casks, sitting outside.


For The Environment Report, this is Lester Graham.

Related Links

Lawsuit Over Ship Emissions

Environmentalists are suing the US Environmental Protection Agency
over pollution from ocean-going vessels. Tracy Samilton reports:

Transcript

Environmentalists are suing the US Environmental Protection Agency
over pollution from ocean-going vessels. Tracy Samilton reports:


Friends of the Earth says big ships are among the largest mobile
sources of air pollution in the world. And large ships don’t have to
meet US environmental regulations.


Attorney Sarah Burt says emissions from cruise ships, cargo ships and
ocean tankers cause asthma and thousands of premature deaths:


“These tanker ships burn a fuel called bunker fuel, which is the lowest
grade of fuel available it’s completely unrefined.”


She says the US EPA already agreed to regulate large ship emissions,
but missed its April deadline. The EPA says the US is currently
negotiating tougher ship emissions standards with the International
Maritime Organization.


For the Environment Report, I’m Tracy Samilton.

Related Links

American Reviving Roman River

  • Rome is known for its many landmarks, but the Tiber River is often overlooked and neglected by its residents. (Photo by Nancy Greenleese)

When we think of Rome, we think of the Colosseum with its graceful arches and
Saint Peter’s Square, designed by Michaelangelo. We don’t often think of the
Eternal City’s oldest wonder: the Tiber River. But one American artist has. New
Yorker Kristin Jones creates public art that often focuses on nature and time. She
has found a muse in the trash-filled Tiber and wants to clean it up starting with a
small stretch. Nancy Greenleese reports from Rome:

Transcript

When we think of Rome, we think of the Colosseum with its graceful arches and
Saint Peter’s Square, designed by Michaelangelo. We don’t often think of the
Eternal City’s oldest wonder: the Tiber River. But one American artist has. New
Yorker Kristin Jones creates public art that often focuses on nature and time. She
has found a muse in the trash-filled Tiber and wants to clean it up starting with a
small stretch. Nancy Greenleese reports from Rome:


Along the Tiber, it’s “pazzo,” or crazy. Motorscooters and cars whip by near a
bridge that spans the river. Kristin Jones stands here, gazing down at the far more
tranquil river below. She decides to head down the stairs:


“We’re descending 36 feet below the street level into the channel or the gully that is now
the Tiber.”


Grafitti covers the stone walls and trash bobs in the water. It’s dirty and secluded
and Jones wants to change that with the creation of a water-themed “piazza,” the
gathering places that dot Italian cities. Jones remembers when she first saw the Tiber.
It was 1983 and she’d just arrived in Rome on a Fulbright scholarship:


And as a New Yorker I said to myself, “Oh my God. There’s something parallel here?
What is this?”


And then it hit her like a vision from the nearby Vatican:


“This is like a Central Park. Central Park is such an abstract miracle, I mean, it’s really
nature in the middle of the city and you walk there and you see leafs tremble and you see
real grass and you see a real squirrel. You even can collect mushrooms in Central Park.”


Jones could collect an impressive collection of beer bottles here. Homeless people are
camped nearby and the stench of urine is overpowering. Italian have little love for the
Tiber. It used to frequently flood, prompting the construction in the 1800s of walls that
hold – and hide – the river below the streets. Jones, however, wants people to visit and
appreciate the Tiber:


“Well, if you think about it, perhaps you could consider it to be the most ancient
monument in Rome (laughs).”


The city was founded along its banks nearly 3000 years ago and water has flowed
through its history. The Roman Empire’s aqueducts revolutionized water transportation.
A flooded Colosseum once held mock sea battles. Today, Jones says tourists still come
for the water:


“The fountains in, throughout the historic city have always been a sort of showy element
of power and exuberance and fun and yet the main artery is completely neglected.”


Until now.


(Mariamba music)


Locals and tourists stroll along the proposed piazza on a recent evening. Jones’ group
group Tevereterno, or Eternal Tiber, organized this event to promote the 600 meter
stretch. Supporters would like it to eventually host modern art exhibits and conferences
focused on water. Tonight, musicians perform and more than 1000 candles line the
river’s banks. Allegra Zapponi checks out the scene and reflects on what the Tiber means
to Italians:


“I think in the last 50 years of the last century, like the place for the rubbish. Everything
that you want to give away, you throw it in the river (laugh).”


But Kristin Jones and her supporters believe that the piazza would be a tributary for
getting people to the river and encourage its cleanup. However, arts advocate Luca
Bergamo, who has worked for two mayors, says Jones’ enthusiasm might not be enough
to get the project afloat:


“The biggest challenge is that you don’t find people investing in risky things in this
country. This is not risky but it’s unknown, not understood.”


Change is resisted in Italy, a country often strangled by its historic past. And politicians
can’t justify spending money on the Tiber when resources are scarce for more famous
monuments.


As couples at the party listen to an avante garde audio composition, attitudes might be
changing. The city has added the proposed renovation of this stretch of the Tiber, the
Piazza Tevere, to its new city plan. Jones says it’s time to hand the project over to
Italians:


“They’re all applauding me and trying to get me to keep doing it. And I keep trying to
step back and say, ‘It’s YOUR river. Hallelujah! See the potential, see the potential. I see
the potential.'”


She has agreed to plan next year’s celebration on the Tiber. In the meantime, there’s a
reminder of what could be. Jones has surreptitiously posted on the river’s embankment a
replica of the stone signs that mark Rome’s piazzas and streets. It says “Piazza Tevere.”


For the Environment Report, I’m Nancy Greenleese.

Related Links

Fish Detectives

  • The fish detectives (a.k.a. scientists who specialize in fishery genetics) survey the scene. (Photo courtesy of the Lake Erie Center)

On television, the CSI detectives make forensic lab work look glamorous. It’s a cinch for them to track a criminal by the DNA left behind at the scene. In real life, DNA is also a powerful tool for solving environmental crimes and mysteries. Rebecca Williams visits the Fish Detectives:

Transcript

On television, the CSI detectives make forensic lab work look glamorous. It’s a cinch for them to track a criminal by the DNA left behind at the scene. In real life, DNA is also a powerful tool for solving environmental crimes and mysteries. Rebecca Williams visits the Fish Detectives:


(Sound of gulls and reel being cast)


It’s midday, and it’s so hot the gulls are just standing around with their beaks open.


But Joe Al-Sorghali is still trying to get himself a fish dinner:


“Hopefully I can get a good amount of perch today… they’re not that fishy so they’re a really good catch.”


It takes a lot of these little fish to fill up a dinner plate. But that doesn’t stop Al-Sorghali from going after perch and walleye any chance he gets. A lot of people call Lake Erie the Walleye Capital of the World.


Fishing is a really big deal here. So it makes sense that Lake Erie’s also home to the Fish Detectives.


(Dragnet theme music)


The fish detective headquarters is tucked away on the edge of a quiet cove. The investigators at the Lake Erie Center are not wearing trench coats. They’re not even wearing lab coats. This crew of laid-back lab techs and grad students comes to work in jeans and T-shirts.


Carol Stepien heads up the fish detective squad. She says they solve lots of cases of mistaken identity.


Take the Case of the Fried Perch.


Last year the detectives got a call from a TV station in Milwaukee. The news crew was suspicious that the fried local perch on restaurant menus wasn’t really local.


Stepien says she asked the news station to send her some frozen filets.


“So instead they sent their news crew out into restaurants and had their news crew eat the fish and put a little bit of the breaded, cooked fish in a plastic bag and froze those and sent them to me. We were pretty shocked to get those in our laboratory. We didn’t know if we could get DNA from breaded, fried material like that.”


But Stepien says they scraped off the breaded coating… and they actually were able to extract DNA from the little bits of cooked fish.


“And we found that about half of those fish were yellow perch from Europe.”


Stepien says it’s gotten more common for fish brokers to import yellow perch from outside the U.S. because it’s cheaper. She says even though the foreign perch might taste the same when they’re deep-fried… a close look at the DNA of the European yellow perch reveals big differences from Great Lakes yellow perch.


“They probably could be called freshly caught lake perch, but they were certainly frozen and didn’t come from any local lakes, they didn’t come from the Great Lakes. Instead they came from overseas.”


Stepien’s team will tackle any sort of mystery, as long as it involves gills and fins.


Lately they’ve solved cases of home invasion. That is, invasions by exotic species that’ve gotten into the Great Lakes. The scientists can track the invaders by their DNA fingerprints, and find out where they’ve been.


Joshua Brown is a Ph.D student at the lab. He’s been tracking the round goby. It’s a fish native to Europe. Scientists say it caught a ride to the Great Lakes in the ballast tanks of ocean going ships. It’s been crowding out native species.


“We’re going to find somebody to point the finger at, as it were. We’ve found evidence they came from the northern portion of the Black Sea, right around one of the major ports.”


That port is in Ukraine. Even though they’ve found the culprit, Brown says there’s not much governments can do, because everyone’s guilty.


“I don’t think you could really sue a nation for you know, not keeping their species under wraps. If so, we’d be open for a lot of lawsuits too – we export almost as many as we import.”


But Brown says knowing exactly where a foreign species comes from might help keep the door closed to future invaders from that same region.


Whether it’s a case of consumer fish fraud or defending the home turf from invaders, there’s one bottom line for these detectives. They want to find out as much as they can about native fish so they can keep them from going belly up.


For The Environment Report, I’m Rebecca Williams.

Related Links

Study: Restoring Great Lakes Worth the Cost

  • A new study says investing in Great Lakes restoration will bring big economic benefits - including increased tourism. (Photo by Andy Brush)

A new study released this week (September 5th) says spending money on the Great Lakes will have major economic benefits. The Florida Everglades and the Chesapeake Bay have received a lot in federal and state money to restore their ecosystems. Mark Brush reports some say it’s time for the Great Lakes to receive similar assistance:

Transcript

A new study released this week (September 5th) says spending money on the Great Lakes will have major economic benefits. The Florida Everglades and the Chesapeake Bay have received a lot in federal and state money to restore their ecosystems. Mark Brush reports some say it’s time for the Great Lakes to receive similar assistance:

The researchers say that if a 26 billion dollar plan to clean up the Great Lakes is enacted – it will bring 80 to100 billion dollars in direct economic benefits. They say the benefits would come from things such as higher property values, more tourism, and more economic development.

John Austin is with the Brookings Institution and one of the authors of the study. He says businesses today want to build in places associated with good quality of life:

“So much of the economic development in our country has been on the west coast and the east coast and what we’re saying is our fresh water coast provides as much opportunity for that kind of wonderful lifestyle that many people want, but only if we keep it clean and make it available to people.”

There are several bills in Congress aimed at cleaning up the Lakes. The researchers hope their study will provide incentive to pass these bills. For the Environment Report, I’m Mark Brush.

Related Links

Mercury Reduction Plans Developed

A plan to reduce pollution from products containing mercury has been drafted for states
surrounding the Great Lakes. Once in the environment, mercury can pose a number of health risks. Chuck Quirmbach reports:

Transcript

A plan to reduce pollution from products containing mercury has been drafted for states
surrounding the Great Lakes. Once in the environment, mercury can pose a number of health
risks. Chuck Quirmbach reports:


A committee of the Great Lakes Regional Collaboration set up by President Bush is looking for
ways to phase out mercury in products and in waste.


The panel recommends banning or being more careful with mercury in dental fillings, thermostats,
switches, thermometers and lamps. Committee member Randy Case says all of the
recommendations have been tried in at least one of the Great Lakes states and should not be a
hardship:


“These aren’t really new suggestions or new ground for the manufacturers of these products. It’s
issues I think they with which they’ve already given some thought about product stewardship and
mercury elimination.”


the public can now comment on the draft proposal through the end of October. Environmental
groups say more of the states could already be taking steps to keep mercury out of the
environment where it can be a threat to human health.


For the Environment Report, I’m Chuck Quirmbach.

Related Links