Tag: port

Cleaning Up U.S. Ports

  • The Matson Line Container ship is unloaded at the Port of Oakland. It takes up to 48 hours and hundreds of trucks to unload the world's large container ships. Everything except the white cranes runs on diesel (Photo by Lisa Ann Pinkerton)

U.S. ports are among the biggest sources of air pollution in the cities they are in. Some
ports are making progress in cleaning up their emissions. But Lisa Ann Pinkerton
reports, critics say the pace is slow:

Transcript

U.S. ports are among the biggest sources of air pollution in the cities they are in. Some
ports are making progress in cleaning up their emissions. But Lisa Ann Pinkerton
reports, critics say the pace is slow:

The Matson Line cargo ship is laden with hundreds of shipping
containers and looks like a floating building, rather than a ship. It’s in
from a recent trek across the Pacific Ocean and it’s docked here at
the Port of Oakland.

It’s being unloaded one container at a time by a row of cranes
towering over the ship.

“And they’re either loading them on to a truck chassis to go directly out of the port, or
they’re going to store it in the yard, sort it out, put it on a rail car or send it out on the
regional freeways.”

That’s Richard Sincoff. He directs the environmental projects at the
Port of Oakland.

He says it can take crews 24 to 48 hours to fully unload just one ship,
and all that the activity creates a lot of the air pollution surrounding
West Oakland.

The trucks moving containers around the port run on diesel, and
recently, the port banned all pre 1994 trucks from shuttling shipping
containers.

Delphine Prevost, who manages truck programs at the port says goal
is to ensure the thousands trucks serving the port emit low levels of
diesel pollution.

“These are engine models we are talking about, and generally the older, the more
pollution it is. Just like anything else, trucks get cleaner as technology for truck engines
get cleaner.”

Since most of the truck drivers are independent contractors and can’t
always afford a brand new truck, the port has set up a grant program
to help them cover the costs.

Los Angeles has done this, too, and it is the biggest port in the
country. Since last fall, it’s removed forty-five hundred dirty trucks
from its operations.

David Abby says the region’s seen a nearly 35% improvement to the
local air quality and a reduction of 500 tones of nitrous oxide or NOX.

“And to put that into prospective, that 500 tons of NOX is like taking 1300 cars off the
road for a year.”

But truck exhaust represents only about 4% of all diesel emissions in
America’s ports. It’s ships that emit the most. They burn dirty bunker
fuel on their way in to the port. Then they’re docked, they keep
burning it for electricity.

James Cannon is with Energy Futures – an environmental advocacy
group. He says these big ships are just like a power plant on land.
But, because they are in the water, the US Clean Air Act doesn’t
apply.

“Because the power plant is just a few feet off the berth on the ship, it’s totally
unregulated and this has led to emissions that are literally thousands of times higher
than if it were just a few feet away.”

Cannon says ports are exploring ways to cut these emissions, but the
pace is slow. He says the most ideal solution is to allow the ships to
plug into the electrical grid while at berth. A few ships docking in the
Port of Long Beach can do this now.

These California ports are greening their operations, because state
law is pushing them. Cannon says America’s seven other ports have
much farther to go.

He says they should take advantage of the lower shipping activity
during this recession – and spend money to green up their
operations.

“Rather than endlessly expanding their container ports or endlessly expanding volume
they now have a chance to restructure their ports and put them on a cleaner basis.”

US EPA has pledged to regulate air within 230 miles of US Coasts by
2012.

If the agency stays true to its word, all of the nation’s ports will have
to green their operations eventually. Whether it will be as much as
California’s ports have done remains to be seen.

For The Environment Report, I’m Lisa Ann Pinkerton.

Related Links

Airports Ask for Bailout

  • Fuel costs are skyrocketing. That means air carriers are cutting back on routes... and airports say they're losing revenue as a result. (Photo courtesy of Boeing)

The airport industry says high fuel prices are

threatening the stability of the entire system. Rebecca

Williams reports the industry wants its fuel needs to be

given top priority:

Transcript

The airport industry says high fuel prices are threatening the stability of the entire system. Rebecca Williams reports the industry wants its fuel needs to be given top priority:


Fuel is a big deal for the airline industry. The industry says for every dollar increase in the price of a barrel of oil – fuel costs go up 465 million dollars for the airlines.

So they’ve been cutting back… stopping service on more than 400 routes since March.

And for airports… that means losing their main source of revenue.

So they want the federal government to bail them out if fuel keeps going up.

Sean Broderick is with the American Association of Airport Executives.

“Petroleum based products are what make airplanes fly, period. And while industry and aircraft manufacturers are working on alternatives there is no equivalent to wind power.”

The group wants the government to allow airlines to borrow from the Strategic Petroleum Reserve… or be given subsidies for jet fuel.

For the Environment Report, I’m Rebecca Williams.

Related Links

New Ship Has Balance Without Ballast

  • A diagram of the ballast-free ship (Photo courtesy of Professor Michael Parsons)

Cargo ships move sea life around the world.
Moving aquatic life from one port to another can cause
environmental havoc. Lester Graham reports there’s a
new idea that could nearly eliminate the problem of
transporting sea life to foreign ports:

Transcript

Cargo ships move sea life around the world.
Moving aquatic life from one port to another can cause
environmental havoc. Lester Graham reports there’s a
new idea that could nearly eliminate the problem of
transporting sea life to foreign ports:

There is an invasion of every major port on the globe.

“Today, the world’s shores are under attack. Armies of aliens are secretly invading our coasts.”

If this video, Invaders from the Sea, from the International Maritime
Organization sounds a little over-dramatic, it’s really not. Invaders from far-flung
corners of the world are brought in by commerce. In their travels, cargo ships pick up the
hitchhikers.

Those hitchhikers can be fish, mussels – aquatic bugs of all kinds. They can become
pests. Out-compete native species for food and space. They can destroy the
native ecosystems and often damage the economic well-being of people.

Here’s how it happens. Ocean-going cargo ships dock at a foreign port. They pump in
water for ballast to keep the ship stable. They also pump in some of the living things in
the water. When they arrive at the destination port, they can pump out that water and
the critters that were sucked up with it.

In the US, ports from Chesapeake Bay to San Francisco have been invaded. But,
the Great Lakes have been hit especially hard by invasive species.

Michael Parsons is a professor of naval architecture at the University of Michigan. He
says when foreign ships were able to come in from the Atlantic and travel as far as
inland as Duluth, Minnesota; they brought a lot of invaders with them.

“With the opening of the St. Lawrence Seaway in the ‘50’s, that led to increased
introduction of non-indigenous species such as the zebra mussel, and the round goby, and
the ruffe, and the various smaller creatures that have been brought in to the Great Lakes.”

Those creatures have damaged the ecosystem of the Great Lakes. And they’ve cost the economy.
By one Environmental Protection Agency estimate about five-billion dollars a year.

Parsons and his colleagues have been working to design a ship that has no need for
ballast. In the lab, a scale model has been tested in a long pool. Instead of pumping
water in and out of the ballasts, the water would flow through big
tubes that run the length of the ship.

“And so, that’ll create a slow flow through these trunks so that they’re always swept
clean of foreign water.”

“A ship like that is just what we need in the Great Lakes.”

Andy Buchsbaum runs the Great Lakes office of the environmental group, the National
Wildlife Federation.

“If you eliminate the need for ballast water altogether, then you’re eliminating the vast
majority of invasive species introductions that come in through the discharge of ballast.”

The ballast-free ship design is creating some excitement. Even the shipping industry is
paying attention because the ship also is more fuel efficient.

If someone decides to actually build the ballast-free cargo ship, it’ll be a while before
the first one is on the high seas.

Allegra Cangelosi has been working on the ballast and invasive species problem for
close to a decade. She’s a policy analyst with the Northeast-Midwest Institute.

“I think it’s a wonderful development. I don’t think there’s going to be any one answer
for all ships plying all waters throughout the globe. However, the more good answers
that are out there to choose from, the better for the environment.”

Some of those choices are filtering ballast water or killing organisms in the ballast with
chemicals. Those systems are expensive. And since fuel isn’t getting any cheaper, that
might make a more fuel-efficient ballast-free ship attractive.

For The Environment Report, this is Lester Graham.

Related Links

E-Waste Polluting Overseas

  • Exposed to toxic chemicals such as lead and mercury, workers stay at the scrap yards for the $130-a-month pay. (photo by Ted Land)

At your home, chances are your TV, computer and other electronic gear were made
overseas. That’s because it’s cheaper to make them there. And it’s cheaper to get rid of old
electronics overseas. Someday, your old cell phone or CD player might end up right back
where it started: in China. Ted Land visited a Chinese city where electronic waste, or e-waste, is shipped by the thousands of tons. Pollution from that waste is threatening the
health of people who live there:

Transcript

At your home, chances are your TV, computer and other electronic gear were made
overseas. That’s because it’s cheaper to make them there. And it’s cheaper to get rid of old
electronics overseas. Someday, your old cell phone or CD player might end up right back
where it started: in China. Ted Land visited a Chinese city where electronic waste , or e-
waste, is shipped by the thousands of tons. Pollution from that waste is threatening the
health of people who live there:


The city of Taizhou is in eastern China. It’s an industrial port city. A lot of the people
who travel here are here on business. Ships loaded with new products are often headed
for the United States. But it’s not just what leaves this city that makes business boom…
it’s also what’s coming in:


“I know it’s polluted here but it’s not a big deal. The most important thing is my
children, that’s the reason why I found work here.”


Liu Qinzhen works at this Taizhou scrap plant. It’s the final stop for some of the nearly
4,000 tons of scrap and e-waste that enters the port each day. Liu is one of hundreds of
workers who squat under an outdoor pavilion picking apart old circuit boards and wires.
She works 9 hours a day, 7 days a week, earning about 130 dollars a month.


The work is dangerous. She and the other workers are exposed to harmful chemicals
from e-waste such as lead and mercury. The 23-year-old moved here for this job because
she needed to support her two kids:


“I used to work in a shoe factory but then I had a baby and it’s not convenient to have a
baby there so I moved here even though the pay is the same. I come from the countryside.
You can’t earn money on a farm.”


The plant where she works is considered safer than scrapping these materials in the
countryside where families work in their front yards and in their homes. They melt
circuit boards and burn wires to extract bits of valuable copper and gold.


Environmental organizations have documented evidence that what’s left over after the
valuable metals are retrieved is dumped into local rivers and streams:


(Land:) “I noticed when we arrived they shut down the other door of that other shop?


“They are doing the same kind of e-waste, but they are afraid of being discovered by
others.”


Afraid, says Taizhou resident Chen Yijun because what they’re doing is illegal. Chinese
law forbids the import of e-waste, yet piles of foreign electronics litter the countryside
and pour into scrap plants daily.


Yijun is a teacher at Taizhou #1 High School, where students are concerned about what
the e-waste industry is doing to their environment. They’ve been testing the water in
local streams, looking for signs of harmful chemicals:


On this day they draw several gallons from a stream. The banks are littered with piles of
electrical cable. Chen Zhengyan has been working on the project for years:


“The frogs here are different from frogs in other places because sometimes they have
extra limbs. We are sure the pollution is from e-waste because in this area there is no
other industry.”


Chen and her colleagues say this pollution is harmful to people, too. They tell local
government officials such as Liang Xiaoyong that something has to be done to improve
the situation. But, Liang says there’s only so much the government can do to combat an
illegal industry that so many residents make their living off of. He says cutting off the
imports is difficult because sometimes e-waste is hidden in with other scrap. He doesn’t
deny the waste industry is a big business here:


This industry generates a lot of tax money for us in the form of tariffs. So, if this industry
doesn’t exist, the Taizhou harbor won’t survive.


Jim Puckett is coordinator of the Basel Action Network, a Seattle based group that
confronts toxic trade issues around the world. He says it’s not that the Chinese
government is unwilling to stop imports, it’s simply unable to stop them.


“They’ve banned the import, the problem is they can’t control that flow, it’s just coming at
them container load after container load through various ports and they can’t possibly check every
single one.”


American waste is literally fueling the fires burning electronics that dot the countryside in
China. And many of the original owners of this gear had taken it to be recycled, and
thought they’d done the right thing. But, often it ends up on a ship, headed for scrap
yards overseas.


About seven thousand miles away from Taizhou, practically the other side of the globe,
there’s a warehouse in Springfield, Illinois stacked with old electronic gear.


The Illinois State Department of Central Management Services, or CMS, disposes of old
state property, including old copy machines, computers, and monitors. In 2005, CMS
was contacted by the Basel Action Network with some disturbing information. The
group was finding State of Illinois computers dumped in developing countries around the
world. Curtis Howard is manager of CMS state and federal surplus property:


“It hit me pretty hard, the fact that, not realizing, you know I always look at it, these guys
were here, they come in, they bid on our property, you know I’m maximizing the return on
the state’s investment, I’m doing a good job, I never really thought about the tail end of
the dragon.”


Basel Action Network coordinator Jim Puckett says if the Chinese are unable to stop the
imports, then it’s up to the United States to control what they export:


Other countries have laws forbidding it, laws controlling it, but in the United States, we
don’t even have a law to control this export.


The U.S. is one of only a handful of countries that have not signed and ratified the Basel
Convention, an international treaty that bans hazardous waste exports. That means if
anything is going to be done to stop electronic waste from polluting countries overseas,
it’s going to be up to the States to take action.


It starts with buying electronics from companies that make products that are more easily
recycled, and ends with making sure old electronic gear is getting into the hands of
responsible recyclers who don’t simply ship the e-waste to scrap yards overseas.


For the Environment Report, I’m Ted Land.

Related Links

Ten Threats: Expanding the Seaway

  • A freighter leaving the Duluth harbor in Minnesota. (Photo courtesy of EPA)

One of the Ten Threats to the Great Lakes identified by many of the experts we surveyed
is dredging channels deeper and wider for larger ocean-going ships. In the 1950s, engineers
carved a shipping channel from the Atlantic Ocean to the Great Lakes via the St. Lawrence
River. The St. Lawrence Seaway was to make ports in cities such as Chicago and Duluth main
players in global commerce. Today, the Seaway operates at less than half its capacity.
That’s because only five percent of the world’s cargo fleet can fit through its locks and
channels. For decades, the shipping industry has wanted to make them bigger. David
Sommerstein reports:

Transcript

We’re continuing our series Ten Threats to the Great Lakes with a look at the idea of
letting bigger ships into the lakes. Lester Graham is our guide through the series.


One of the Ten Threats to the Great Lakes identified by many of the experts we surveyed
is dredging channels deeper and wider for larger ocean-going ships. In the 1950s, engineers
carved a shipping channel from the Atlantic Ocean to the Great Lakes via the St. Lawrence
River. The St. Lawrence Seaway was to make ports in cities such as Chicago and Duluth main
players in global commerce. Today, the Seaway operates at less than half its capacity.
That’s because only five percent of the world’s cargo fleet can fit through its locks and
channels. For decades, the shipping industry has wanted to make them bigger. David
Sommerstein reports:


(Sound of rumbling noise of front-loaders)


The port of Ogdensburg sits on the St. Lawrence River in northern New York State.
When the Seaway was built, local residents were promised an economic boom. Today
what Ogdensburg mostly gets is road salt.


(Sound of crashing cargo)


Road salt and a white mineral called Wallastonite – the Dutch use it to make ceramic tile.
Front-loaders push around mountains of the stuff. In all, the port of Ogdensburg
welcomes six freighters a year and employs just six people.


Other Great Lakes ports are much bigger, but the story is similar. They handle low-value
bulk goods – grain, ore, coal – plus higher value steel. But few sexy electronic goods
from Japan come through the Seaway, or the gijillion of knick-knacks from China or
South Korea.


James Oberstar is a Congressman from Duluth. He says there’s a reason why. A
dastardly coincidence doomed the Seaway.


“Just as the Seaway was under construction, Malcolm McLean, a shipping genius, hit on
the idea of moving goods in containers.”


Containers that fit right on trains and trucks. The problem was the ships that carry those
containers were already too big for the Seaway’s locks and channels.


“That idea of container shipping gave a huge boost of energy to the East Coast, Gulf
Coast, and West Coast ports, and to the railroads.”


Leaving Great Lakes ports behind ever since the regional shipping industry has wanted to
make the Seaway bigger.


The latest effort came in 2002, when the U.S. Army Corps of Engineers studied the
economic benefits of expansion. The study said squeezing container ships through the
Seaway would bring a billion and a half dollars a year to ports like Chicago, Toledo, and
Duluth. But if you build it, would they come?


“Highly doubtful that container ships would come in. Highly doubtful.”


John Taylor is a transportation expert at Grand Valley State University in Michigan.
He’s studied Seaway traffic patterns extensively. He says there would have to be “a sea
change” in global commerce.


“Rail is too competitive, too strong moving containers from the coast in and out say from
Montreal and Halifax and into Chicago and Detroit and so on, too cost-effective for it to
make sense for a ship to bring those same containers all the way to Chicago.”


The expansion study sparked a flurry of opposition across the Great Lakes. It failed to
mention the cost of replumbing the Seaway — an estimated 10 to 15 billion dollars. It
didn’t factor in invasive species that show up in foreign ships’ ballasts. Invasives already
cost the economy 5 billion dollars a year, and environmentalists said it glossed over the
ecological devastation of dredging and blasting a deeper channel.


Even the shipping industry has begun to distance itself from expansion. Steve Fisher
directs the American Great Lakes Ports Association.


“There was quite a bit of opposition expressed through the region, and in light of that
opposition we took stock of just how much and how strongly we felt on the issue and
quite frankly there just wasn’t a strong enough interest.”


Most experts now believe expansion won’t happen for at least another generation.
Environmentalists and other critics hope it won’t happen at all.


So instead, the Seaway is changing its tactics. Richard Corfe runs Canada’s side of the
waterway. He says the vast majority of Seaway traffic is actually between Great Lakes
ports, not overseas. So, the Seaway’s focus now is to lure more North American shippers
to use the locks and channels.


“Our efforts have to be towards maximizing the use of what we have now for the benefit
of both countries, the economic, environmental, and social benefit.”


Today, trucks and trains haul most goods from coastal ports to Great Lakes cities.
Shippers want to steal some of that cargo, take it off the roads and rails, and put it on
seaway ships headed for Great Lakes ports.


For the GLRC, I’m David Sommerstein.

Related Links

Steering Away From Seaway Expansion

For decades, international shippers have wanted bigger locks and channels in the St. Lawrence Seaway. Earlier this month, the Seaway’s chief in Canada said expansion is off the table, at least for a generation. The Great Lakes Radio Consortium’s David Sommerstein
reports:

Transcript

For decades, international shippers have wanted bigger locks and channels in the St. Lawrence Seaway. Earlier this month, the Seaway’s chief in Canada said expansion is off the table, at least for a generation. The Great Lakes Radio Consortium’s David Sommerstein reports:


Only a third of the world’s shipping fleet can fit in the Seaway. Industry has long said digging deeper drafts would bring much needed commerce to Great Lakes ports.


But Dick Corfe told shippers at a conference in Toronto there’d be no changes for fifteen to twenty years. Corfe is CEO of the St. Lawrence Seaway Management Corporation, which runs Canada’s half of the waterway.


“We have to work with what we have. We have the physical constraints of the locks. The ships can’t be any bigger than the locks, and we have an obligation to try and maximize the use of the system around the current infrastructure.”


Corfe said the way to do that is to move goods between East Coast and Great Lakes ports by ship instead of truck or train.


Corfe’s remarks come after the Army Corps of Engineers backed off a study last year that recommended expansion. Environmentalists said dredging and blasting a bigger channel would devastate Great Lakes ecology.


For the GLRC, I’m David Sommerstein.

Related Links

Land Swap: Steel Mill Jobs for Forests?

  • The expansion of an existing steel mill could mean more jobs but less forest. (Photo courtesy of AmericasLibrary.gov)

Everybody has different ideas about how land ought to be used. Lately, the fight’s been about whether to allow expanding retail development on farmland. But a different fight’s going on right now, too. It’s a fight between two long-time rivals – heavy industry and open space. It’s also about jobs and preservation. The Great Lakes Radio Consortium’s Shawn Allee has this report:

Transcript

Everybody has different ideas about how land ought
to be used. Lately, the fight’s been about whether to allow
expanding retail development on farmland. But a different
fight’s going on right now, too. It’s a fight between two
long-time rivals – heavy industry and open space. It’s also
about jobs and preservation. The Great Lakes Radio Consortium’s
Shawn Allee has this report:


(Sound of train)


The town of Riverdale’s a kind of industrial crossroads. It’s near a Great Lakes port, heavy trucks lumber through its streets, and in some areas, rail crossings are as common as stop signs. At one time, this village just south of Chicago was known for more than just moving industrial goods – thosands of workers used to make things here, especially steel.


(Sound of birds)


Today, there are only a few hundred steel jobs left in Riverdale. Most are at one plant that sits near a stretch of Cook County Forest Preserve, a place called Whistler Woods. The remaining steel mill wants to expand. It wants to swap twenty one acres of Whistler Woods for thirty one acres of its own wooded land. Supporters hope the move will bring jobs to the town.


Jim Bush grew up in the area and is with the region’s chamber of commerce. He supports the deal, saying the area is fighting for its economic future.


“So you can see, it’s pretty hard to keep your schools up to standards and all your city services when you’re faced with a declining tax base.”


Bush says this is urgent. The Riverdale plant was recently bought out by Mittal Steel, the world’s largest steel company. Bush says to keep the mill attractive to the new owners, the county needs to make the company happy now.


“Mittal USA has plants all around the world. If they don’t do this expansion here, they’re talking about taking it to Ohio. We can’t let other states take business away from Illinois without doing something.”


Besides, he says, critics of the land swap should just do the math.


“Thirty-one acres for twenty-one acres. Sounds like a no-brainer to the business community.”


But not everyone’s buying into that calculation. To understand why, I meet with Benjamin Cox. He’s with Friends of the Forest Preserves, an advocacy group. Cox and I are traveling along the bike path leading to the field the company wants to acquire.


“As you’re walking along here, you can hear many, many birds. We just saw some deer. There are wonderful native plants here.”


Cox says the forest preserve district could use an extra ten acres, but the company’s offering land that’s half a mile away and across a river. Cox says that land won’t help these woods. He also doesn’t have much faith in the company’s new owners.


“The part of this that nobody’s talked about yet is that they have not committed to actually bring these jobs here or do this project.”


The company confirms this, saying it can’t make promises about jobs even if it could expand the plant. Cox adds the proposal flies in the face of Forest Preserves history. During the past ninety years, it’s only sold or traded land a handful of times and the last time it did, it go burned. A few years ago, it let go of two acres so Rosemont, a Chicago suburb, could build a casino parking lot. The parking lot got built, but the casino project never got started.


Now Cox fears if this deal goes through, it’ll be open season on Forest Preserve land.


“As soon as you start nibbling away at the corners, a little acre here, a little acre there, twenty acres here. All of a sudden, it’s ‘You did it for them, you should do it for me.'”


The plan’s supporters say they don’t want to sell off the preserves, they just want a little flexibility.


Cook County Commissioner Deborah Sims represents Riverdale and surrounding communities. She says opponents are typically from more affluent parts of the county, places that have an easy time attracting new businesses. There, she says,


“All you have to do is build a few houses and everybody will come. We don’t have that luxury. So, any economic development we have, we can’t afford to lose.”


So the land swap seems a small price to pay for a little economic security.


A tall chain-link fence separates the woods from the Riverdale steel plant. Despite the division, both parcels of land have something in common – their boosters are motivated by fear.


The area’s steel industry is, in many ways, a diminishing, precious resource. The Cook County Forest Preserve District also faces a crossroads, but a more political one. It holds tens of thousands of acres of open land, but it’s not clear whether it can always fend off demands made by a land-hungry economy.


For the GLRC, I’m Shawn Allee.

Related Links

Corps May Cut Back on Harbor Dredging Projects

  • President Bush's proposed budget for the U.S. Army Corps of Engineers might reduce the number of dredging projects, which in turn would decrease the number of accessible waterways. (Photo courtesy of the U.S. Fish and Wildlife Service)

Some of the nation’s ports could be unusable for transporting commerce if a Presidential budget proposal goes through. The Great Lakes Radio Consortium’s Christina Shockley reports:

Transcript

Some of the nation’s ports could be unusable for transporting commerce if a presidential budget proposal goes through. The Great Lakes Radio Consortium’s Christina Shockley reports:


President Bush has suggested cutting about half a billion dollars from the U.S. Army Corps of Engineers’ budget. If that happens, the Corps says it might cut dredging projects for the nation’s smaller ports. Dredging removes sediments that naturally collect in waterways.


The process makes them safe for cargo-carrying ships to pass through. Wayne Schloop is the Corps’ chief of operations in Detroit. He says economies in this region depend upon healthy ports.


“I believe it would have a negative effect on the economies because there’s a lot of harbors along the Great Lakes whose local economies are sort of tied into the marine industry and shipping and navigation.”


Schloop says ports that transport less than a million tons of goods a year could be affected. He says that includes about half of the more than 60 commercial ports in the Great Lakes.


For the GLRC, I’m Christina Shockley.

Related Links

Empty Ballast Tanks Still Carrying Critters

  • A scientist collects samples of ballast sediment. (Photo courtesy of NOAA)

A new study finds that ocean-going ships that enter the Great Lakes often carry biological pollution in their ballasts, even when they declare their ballasts are empty. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

A new study finds that ocean-going ships that enter the Great Lakes often carry biological pollution in their ballasts, even when they declare their ballasts are empty. The Great Lakes Radio Consortium’s Lester Graham reports:


The study by the University of Michigan and the National Oceanic and Atmospheric Administration looked at ships coming into the Great Lakes from the ocean. Nearly 80-percent of them declared “no ballast on board” and avoided inspections by the Coast Guard.


But several of those ships were tested by the researchers. They found that although the ballast water was pumped out, there were thousands of organisms left behind in the sediment in the bottom of the ships’ ballast. Then, when the ships unloaded at their first stop, they took on Great Lakes ballast water which stirred up the sediment.


And that made it possible for the biological contaminants to be pumped out at the next Great Lakes port.


The authors of the study warn that more restrictions must be placed on how the ships handle ballast water, or the Great Lakes will continue to be invaded by more invasive species such as the zebra mussel, round goby, and 180 other foreign aquatic species that have harmed the Lakes’ ecosystems.


For the GLRC, this is Lester Graham.

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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