Researchers have been finding trace amounts of pharmaceuticals in rivers and lakes. Now, a new report suggests that the presence of Prozac in water bodies might be endangering freshwater mussels. Celeste Headlee has details:
Transcript
A new report suggests that the presence of Prozac in natural water systems can increase
the risk of extinction for freshwater mussels. Celeste Headlee has details:
Many freshwater mussel species are already highly endangered. Experts say about 70
percent of the 300 known species of mussel in North America are extinct, endangered or
declining. Authors of the new study say even trace amounts of anti-depressants like
Prozac are dangerous to mussels because they interfere with reproduction.
Prozac and other prescription medications are flushed into sewer systems and then
released into rivers and streams. Researchers placed female mussels carrying larvae into
tanks with various concentrations of Prozac. Within two days, all of the mussels had
prematurely released their larvae, which then died.
The authors of the study say new wastewater treatment procedures might have to be
developed to filter out prescription and over-the-counter drugs before they reach
waterways.
A blue-green algae bloom. (Photo courtesy of the U.S. Fish and Wildlife Service)
The experts who identified the Ten Threats to the Great Lakes for us
say nonpoint source pollution is one of the worst threats. That’s
pollution that doesn’t come out of a pipe but instead is washed from
streets and farm fields… and lawns. Americans use at least three million of tons
of fertilizer on their lawns every year. But the same compounds that make for a lush,
green lawn can make a stinky, slimy mess when they get washed into lakes and rivers.
Sarah Hulett looks at efforts to limit the amount of lawn chemicals that make their way
into the waterways:
Transcript
In our series, Ten Threats to the Great Lakes, we’ve been looking
at environmental problems affecting the health of the lakes. The Great
Lakes Radio Consortium’s Lester Graham is guiding us through the
issues one-by-one:
The experts who identified the Ten Threats to the Great Lakes for us
say nonpoint source pollution is one of the worst threats. That’s
pollution that doesn’t come out of a pipe but instead is washed from
streets and farm fields… and lawns. Americans use at least three million of tons
of fertilizer on their lawns every year. But the same compounds that make for a lush,
green lawn can make a stinky, slimy mess when they get washed into lakes and rivers.
Sarah Hulett looks at efforts to limit the amount of lawn chemicals that make their way
into the waterways:
When newspaper headlines decried the death of Lake Erie in the 1970’s, Americans got
familiar with a new enemy of the environment. Scientists named phosphorus the major
culprit in the lake’s decline. And the reaction went a long way toward cleaning up the
lake: billions of dollars went into upgrades for wastewater treatment plants to reduce
phosphorus from sewage. And phosphate detergents have been mostly phased out of use.
But now that regulators have gotten a handle on the phosphorus coming from the most
obvious sources, they’re left with a much more difficult task: reducing phosphorus from
countless smaller sources that together add up to a lot of pollution.
One of those sources is lawn fertilizer. And Glenn Short says it’s easy to see what
happens when that fertilizer gets washed into the lake where he lives.
(sound of ducks quacking and waves)
“You have this, like, green slime floating all over the top of the lake water. Just pops up
everywhere and it can fill the entire lake surface – especially in the calmer bays. It can be
just miserable for swimming and things like that.”
Short sits on the board of the Lake Sherwood Association, in southeast Michigan. His
neighbors asked him to lobby the township to pass a ban on phosphorus fertilizer to
reduce the algae that takes over the lake in the summers. But he says at first, he was
reluctant to do it.
“I’m like any other homeowner. I don’t want government telling me what to do with my
own property. If I want a really nice lawn, I felt that I should be able to have one.”
But he started doing some research. And he found that enough phosphorus will
eventually kill a lake.
“Over a period of time, you get more and more organic material growing, you kill it off,
you just start filling up your lake. And eventually you have no lake anymore. You just
have a wetland. Well, I like my lake. I mean, I live on a lake. I like to use my lake.”
So Short drafted an ordinance to ban fertilizers containing phosphorus, and his township
board passed it. Several other local governments in the region have also enacted limits or
outright bans. And the state of Minnesota has statewide limits on phosphorus fertilizers.
It’s an approach the landscape industry calls unnecessary.
Gary Eichen is with Mike’s Tree Surgeons in southeast Michigan. It’s a company that’s
signed onto an initiative aimed at environmentally responsible lawn care.
(sound of spreader)
The company uses zero-phosphorus fertilizer on almost all the lawns it treats. Back at the
office, Eichen says the problem isn’t the chemicals – it’s that most homeowners don’t
know how to use them.
“They purchase from a source that is not educated in what the products are. He goes
home and starts going through this giant label on the back, and most of it might as well
be Egyptian hieroglyphics. He has no idea. So he ends up over-applying or incorrectly
applying.”
Eichen says there would be far fewer problems with runoff if homeowners left fertilizing
to the professionals. And he says it’s tough for the experts to stay in business when
there’s a patchwork of local ordinances to regulate chemicals like phosphorus.
But that’s exactly what the Environmental Protection Agency is asking communities to
do. Brad Garmon of the Michigan Environmental Council says that kind of bottom-up
regulation presents some challenges.
“It’s very difficult to see what’s working and what’s not, and to chart success. And I
know that a lot of the state programs are re-evaluating right now to see if the approach
they’ve been using over the last five or ten years has been working.”
It’ll take at least another five to ten years for Glenn Short to see the results of his
community’s phosphorus ban. The lake he lives on is part of a river system that
eventually dumps into Lake Erie. But he says just like that Great Lake, it’ll be worth the
wait and the effort to see his small lake bounce back to health.
A sewer plant is now trying to stop condoms from making their way into Lake Michigan. The Great Lakes Radio Consortium’s Lester Graham reports on the plans to capture the latex before it gets to the lake:
Transcript
A sewer plant is now trying to stop condoms from making their way into Lake Michigan. The
Great Lakes Radio Consortium’s Lester Graham reports on the plans to capture the latex before it
gets to the lake:
After an angler found what he estimated to be hundreds of condoms floating on Lake Michigan,
the Milwaukee Metropolitan Sewerage District began investigating the source of the problem.
Michael Martin is Technical Services Director with the Sewerage District.
“Last spring we discovered that there were a number of condoms floating out in Lake Michigan.
We believe that some of these condoms could be or have been coming from our Jones Island
wastewater treatment plant.”
The Sewerage District plans to spent two million dollars for new filters to trap the condoms. In
the meantime, workers with nets are skimming the final tanks to get rid of the problem. Martin
says they still haven’t figured out why this problem has suddenly popped up and only at this one
wastewater treatment plant.
For the Great Lakes Radio Consortium, this is Lester Graham.
Tens of millions of gallons of untreated or partially treated sewage were dumped into the Great Lakes basin during last month’s massive power outage, but environmentalists say that’s a drop in the bucket compared with the overall problem of contamination from sewage spills. The Great Lakes Radio Consortium’s Sarah Hulett reports:
Transcript
Tens of millions of gallons of untreated or partially treated sewage were dumped into the Great
Lakes basin during last month’s massive power outage. But environmentalists say that’s a drop
in the bucket compared with the overall problem of contamination from sewage spills. The Great
Lakes Radio Consortium’s Sarah Hulett reports:
Environmental groups say a heavy rain can easily send more raw sewage into lakes and streams
than an event like last month’s blackout.
In Michigan alone, officials say 57 million gallons of sewage were dumped because of the
blackout. Environmentalists say that’s not much, compared to the 50 billion gallons the state
dumps yearly.
Bethany Renfer is with Clean Water Action.
“I think we need to look at all steps that we can take to help to reduce the overflows – both those
that are happening in extenuating circumstances, like a blackout – but also those that are regularly
occurring…that we can almost plan for.”
The blackout strained wastewater treatment facilities from Michigan to New York. All told, at
least 550 million gallons were dumped into lakes, harbors, and streams.
For the Great Lakes Radio Consortium, I’m Sarah Hulett.
Beaches along Lake Michigan were closed more often this year as a result of high bacteria levels, according to a new report. The Great Lakes Radio Consortium’s Sarah Hulett reports:
Transcript
Beaches along Lake Michigan were closed more often this year as a result of high
bacteria levels, according to a new report. The Great Lakes Radio Consortium’s Sarah
Hulett reports:
The report from the Chicago-based Lake Michigan Federation says beach closings and
advisories were at an all-time high in 2002 – at nearly 900 in Wisconsin, Illinois,
Michigan, and Indiana.
Part of the spike can be attributed to more frequent testing in coastal counties. But
Federation director Cameron Davis says an uptick in sewage spills and wastewater
overflows are also to blame. Davis says tracking and cleaning up pollution sources should
be the next step for communities along the Lake Michigan coast.
“That is absolutely key, because right now, so much of the debate has been on monitoring
technology and whether counties are even testing in the first place. We need to start to
move beyond that to identify sources and eliminate them once and for all.”
Davis says Indiana lawmakers recently passed legislation aimed at reducing sewer
overflows. And voters in Michigan are considering whether to approve a billion dollar
bond proposal to repair aging sewers.
For the Great Lakes Radio Consortium, I’m Sarah Hulett.
The largest meatpacker in the world has agreed to pay millions of dollars in penalties because of pollution at its plants. The Great Lakes Radio Consortium’s Lester Graham reports:
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The largest meatpacker in the world has agreed to pay millions of dollars in penalties because of pollution at its plants. The Great Lakes Radio Consortium’s Lester Graham reports.
Iowa Beef Packers, known as IBP Incorporated, has agreed to pay more than four million dollars in penalties and make ten million dollars in pollution prevention improvements at several of its plants. That agreement settles a lawsuit filed by the U.S. Environmental Protection Agency. Among a number of violations at several plants, the EPA had charged that IBP was releasing large quantities of ammonia into the Missouri River and one of its plants emitted 19 times the maximum amount of the pollutant, hydrogen sulfide, from its smokestacks. Besides paying the penalties, IBP will upgrade its wastewater treatment facilities and install required air pollution control equipment. In a release, IBP states that it doesn’t “agree with the nature and extend to the claims made in the federal government’s lawsuit.” but it’s glad to put the matter behind it. IBP was recently acquired by Tyson Foods. Government officials say with the settlement, they hope IBP will now be a better neighbor. For the Great Lakes Radio Consortium, this is Lester Graham.
Around the country, more and more people are getting interested in earth-friendly solutions to everyday problems. Sometimes they hit on a way of solving two problems at once. The Great Lakes Radio Consortium’s Stephanie Hemphill reports on a project that combines household wastewater treatment with a solar greenhouse.
