Lawn Chemicals Cause Concern

  • Nationwide, farms use the bulk of chemicals. But one expert says homeowners are more likely to overuse pesticides and fertilizers. (Photo by Rebecca Williams)

New laws restrict pesticides and fertilizers in some cities. In recent years, farms have cut the use of chemicals. But, Rebecca Williams reports, some environmentalists say there are still far too many chemicals polluting streams and lakes:

Transcript

New laws restrict pesticides and fertilizers in some cities. In recent years, farms have cut the use of chemicals. But, Rebecca Williams reports, some environmentalists say there are still far too many chemicals polluting streams and lakes:

There are 40 million acres of lawns and sports fields in the US. That’s only one-tenth of the amount of cropland.

But some experts say lawn pesticides and fertilizers can be more of a problem.

Charles Benbrook is the Chief Scientist with the Organic Center. It’s a non-profit research group in Oregon.

“While there are many more acres of corn and soybeans and cotton treated with pesticides than there are lawns, the rate of application on lawns in urban areas often is far higher than on the farm.”

And, he says people are more likely to get exposed to chemicals on lawns.

“There’s many more opportunities for significant exposures, particularly for children and pregnant women in urban areas.”

Nationwide, farms do use the bulk of chemicals. But Benbrook says homeowners are more likely to overuse pesticides and fertilizers.

For The Environment Report, I’m Rebecca Williams.

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Old LCD Screens Used for Medical Treatment

  • One research team recovered polyvinyl alcohol from the computer screens, which can be used in medicine (Photo courtesy of the National Cancer Institute)

Some researchers want to recycle
a chemical in computer screens to
use it for a medical treatment.
Shawn Allee reports:

Transcript

Some researchers want to recycle
a chemical in computer screens to
use it for a medical treatment.
Shawn Allee reports:

Most LCD computer screens contain toxic mercury. The European Union will soon mandate those screens be recycled rather than thrown away.

There are other metals and chemicals in the LCD screens that are not dangerous.

Dr. Avtar Matharu is with Britain’s University of York.

His research team recovered polyvinyl alcohol from the computer screens.

It’s used in spongy pads that deliver medicine.

“We can take out Polyvinyl alcohol from the front and back of an LCD screen. We can take what effectively would be a waste resource and potentially use it in a medical application.”

Matharu says getting polyvinyl alcohol out of LCD screens is expensive compared to making it from crude oil, but he says it could be another reason to recycle rather than throw them into a landfill.

For The Environment Report, I’m Shawn Allee.

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Using Honey for Healing

  • Stores in Alandejani's hometown of Ottawa have had an increase in sales of manuka honey after the study was reported (Photo by Karen Kelly)

According to the Centers for Disease Control, more than 90,000 Americans are diagnosed with an antibiotic-resistant infection each year. Doctors and patients are desperate to find an alternative treatment for these infections. Karen Kelly reports on the possibility of a new approach using a common household ingredient:

Transcript

According to the Centers for Disease Control, more than 90,000 Americans are diagnosed with an antibiotic-resistant infection each year. Doctors and patients are desperate to find an alternative treatment for these infections. Karen Kelly reports on the possibility of a new approach using a common household ingredient:

(sound of teapot and pouring)

A lot of us like to pour a cup of tea with honey when we’re feeling achy and stuffed up.

But researcher Talal Alandejani wondered if honey might be good for more than just soothing a sore throat.

He’s an ear, nose and throat doctor at the University of Ottawa in Canada.
He knew honey had been used on the skin for centuries to kill bacteria in wounds.
And he wondered if there might be a way to use it with his patients.

He treats people with chronic sinus infections that are resistant to antibiotics.

“I thought, what if I could use it in the sinus where we use antibiotics, but we still can’t get rid of the infection. It’s a natural product, it has less side effects and it’s less expensive.”

So, Alandejani chose four different types of honey:
clover and buckwheat honeys, which are common in North America,
Manuka honey, which is grown in New Zealand and sold mostly in health food stores,
and sidr honey from Yemen, which is hard for Americans to find.

He then grew bacteria in petri dishes.
Some were free-floating – the kind killed by antibiotics.
The others are called biofilms – they have a coating that resists medications, and they’re the cause of chronic sinus infections and other diseases.

Alandejani squirted the bacteria with antibiotics in one dish, and honey in the other.

The manuka and sidr honey -along with the medications – killed the free-floating bacteria.
The biofilms, though, were a different story.
The antibiotics didn’t kill them, but the honey did.

In fact, the two foreign honeys killed about 90% of the pseudomonas and 60 to 70% of MRSA bacteria. Both can cause deadly infections.

Alandejani presented his findings at the annual meeting of the American Academy of Oto-laryn-gology, Head and Neck Surgery.

And he was swamped with questions from doctors and sinus patients eager to try it.

“Even the patients in our clinics want us to treat them right now, before even doing the trials or the animal studies. And they’re willing to take the harm of it, if there is any, because their disease is not treated until now.”

Alandejani says the challenge is that the honey has to come in contact with the bacteria – so it would have to be diluted and injected into the sinuses.

Dr. Murray Grossan is an ear, nose, and throat doctor in Santa Monica.
He says the treatment looks promising.

“They do use honey for stomach problems, stomach ulcers and so on, so it probably would be pretty safe to put into the sinus. But unfortunately, we have to go through all sorts of protocol there.”


In the meantime, stores in Alandejani’s hometown of Ottawa have had an increase in sales of manuka honey after the study was reported.

It’s not cheap – manuka honey can cost as much as $50 a jar.

Alandejani says he used the regular manuka honey, nothing especially strong.
And he can’t vouch for it’s effectiveness if you just eat it.

But he’s now trying it on sinuses in animal studies.

And soon, his patients with chronic sinusitus will have their chance to try it as well.

For The Environment Report, I’m Karen Kelly.

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Commentary – The Grass Is Always Greener

With warm weather comes America’s annual lawn competition.
Homeowners spend time and money in an effort to achieve a thick, green
carpet of grass, sometimes hiring professionals to apply herbicides,
pesticides, and fertilizers to their yards. Great Lakes Radio
Consortium
commentator, Julia King, is opting out of what she considers an
unhealthy
practice. For this, she hopes to be rewarded:

Herbal Remedies Moving Mainstream

There are thousands of herbal products on the market today.
They generate over 4 billion dollars in sales a year. And many doctors
are taking more notice. Some physicians see a need for more credible
research on herbs and minerals. And they want other doctors to
communicate more with patients that are considering using these
products. Now one doctor has designed some guidelines on herbal
treatments. He hopes this will initiate more discussion and research
about these dietary supplements. The Great Lakes Radio Consortium’s
Todd Witter has more.

Lice Exterminators Pluck Profits

Over the past several years, lice outbreaks have become more frequent
and more severe. Some scientists believe it’s because a new strain of
lice have developed resistance to both over-the-counter and prescription
lice treatments. But as researchers scratch their heads and wonder what
to do to control these "super lice", some new businesses are jumping in
with an answer. The Great Lakes Radio Consortium’s Wendy Nelson
reports:

Resistant &Quot;Super Lice" Tough to Kill

The mere mention of lice might be enough to make your skin crawl. But the really creepy news is that lice outbreaks are becoming more frequent…and more difficult to control. The Great Lakes Radio Consortium’s Wendy Nelson reports: