Tag: pesticide

Treated Lumber a Health Hazard?

A just-released study by two environmental groups has found high levels of arsenic on the surface of pressure-treated wood products. The Environmental Working Group and the Healthy Building Network tested pressure-treated wood purchased from home improvement stores in 13 cities. In releasing their findings, the groups are calling for a ban on the use of the lumber in construction. Their findings add to the growing concern about the safety of the chemicals used to treat this wood. Those chemicals are now being re-evaluated by both the Canadian and American governments. But as the Great Lakes Radio Consortium’s Karen Kelly reports, the two governments are approaching the issue differently:

Transcript

A just released study by two environmental groups has found high levels of arsenic on the surface of pressure-treated wood products. The Environmental Working Group and the Healthy Building Network tested pressure-treated wood purchased from home improvement stores in 13 cities. In releasing their findings, the groups are calling for a ban on the use of the lumber in construction. Their findings add to the growing concern about the safety of the chemicals used to treat this wood. Those chemicals are now being re-evaluated by both the Canadian and American governments. But as the Great Lakes Radio Consortium’s Karen Kelly reports, the two governments are approaching the issue differently.


For years, Don Houston at the Canadian Institute of Child Health has been calling for warning labels on pressure-treated wood. The lumber is used in playground structures and picnic tables throughout North America. And it’s treated with a preservative called Chromated Copper Arsenate, which protects the wood from insects and fungi. The preservative is made from arsenic, chromium and copper. And Houston says children who are exposed to the wood may be exposed to those chemicals, as well.


“It’s not just children’s play structures. I’d rather suspect even more problematic is the deck that’s on the back of their house because often times children spend more time there. It’s all sorts of structures that are put in outdoors – decks, balconies, retaining walls; even the telephone pole that might be in a schoolyard might be problematic.”


Houston says the problem arises when arsenic and chromium, which are both carcinogens, remain on the surface of the wood. A study of ten playgrounds conducted by Health Canada in the late 1980’s detected both substances on the surface of play structures made with pressure treated wood. Arsenic and chromium were also found in the nearby soil. Health Canada warns people who work with pressure-treated wood to wear gloves and a mask and to thoroughly wash clothing and exposed skin once they’re finished. The agency also warns against burning pressure treated wood. But Houston says there are still no guidelines for children.


“It doesn’t make a lot of sense for the guy who’s building it to use gloves and then the child ten minutes after it’s built to be walking over it and running on it barefoot and having greater potential health impact from the exposure.”


But scientists at Health Canada say the research findings have been mixed. They point to studies conducted by the U.S. EPA in the late 1980’s that found minimal health risks. Now, fifteen years since they last evaluated these chemicals, both Health Canada and the EPA are taking another look. The update is required by law in both countries. Richard Martin is a toxicologist at Health Canada’s Pest Management Regulatory Agency. He says the presence of arsenic is not always a cause for concern.


“Although there’s a number of reports out there of arsenic being found in soil, and although they’re useful, arsenic is found in all soil. So we need to go the extra step to determine to what extent there’s potential for exposure to children and that type of thing.”


Martin says his agency is reviewing research to determine the effect of exposure on both adults who work with cca-treated wood and children who play near it. But the U.S. Environmental Protection Agency is taking the review a step further. Jim Jones, the deputy director of the EPA’s office of pesticide programs, says they’re concentrating on the exposure to children first.


“It was the children’s exposure through cca-treated wood we think are the most important to look at as they’re the group in the population that is likely to have the greatest exposures, just because of the way in which they interact with playground equipment and on decks.”


The EPA also plans to take soil samples near cca-treated wood structures in 75 playgrounds around the United States. And it’s considering a recommendation that people apply sealants to pressure-treated wood in the interim. The EPA’s scientific advisory panel suggested the agency take that measure. The EPA and Health Canada are collaborating on the re-evaluation – sharing their findings and their recommendations. Don Houston of the Canadian Institute of Child Health hopes that will lead to legislation in both countries that will restrict the use of this lumber in places where children play. The EPA and Health Canada are expected to announce their recommendations next spring.


For the Great Lakes Radio Consortium, I’m Karen Kelly.

Epa Limits Pesticide Exposure for Children

The Environmental Protection Agency is increasing restrictions on two pesticides that are used on food children frequently eat. The Great Lakes Radio Consortium’s Lester Graham has this report:

Transcript

The Environmental Protection Agency is increasing restrictions on two pesticides that are used on food children frequently eat. The Great Lakes Radio Consortium’s Lester Graham reports.


Under recent federal legislation, the E-P-A has been required to review all classes of pesticides and their potential affects on children. That’s because kids are considered to be more vulnerable to any adverse effects than adults. The new restrictions affect two chemicals, azinphos-methyl and phosmet. They’ve been used to ward off insects from certain fruits, nuts, and vegetables for 35 years. But, the E-P-A has stated that azinphos-methyl, which is sold under the trade names of Guthion, A-P-M, and Sniper, poses an unacceptable risk to children six and under. So use of the pesticide is being restricted. Farmers will phase out use or no longer be able to use it on nearly 40 different crops. Phosmet is sold under the trade name Imidan. The EPA is further tightening its use on nine fruits, including apples, grapes, and peaches. For the Great Lakes Radio Consortium, this is Lester Graham.

COLLEGES FAILING GREEN TEST? (Part 1)

College campuses were once thought to be hotbeds for environmental activism. Now rather than activism, many people see universities as the primary location for both research and courses on the environment, as well as projects that show how a large institution can be environmentally sensitive. But a new report is giving mixed reviews of U.S. college’s environmental efforts. In the first of a two-part series, The Great Lakes Radio Consortium’s Jonathan Ahl explores the issues of greening a college campus:

Transcript

College campuses were once thought to be hotbeds for environmental activism. Now rather than activism, many people see Universities as the primary location for both research and courses on the environment, as well as projects to show how a large institution can be environmentally sensitive. But a new report is giving mixed reviews of U-S college’s environmental efforts. The Great Lakes Radio Consortium’s Jonathan Ahl reports.

(Ambient sound – physical plant)


This coal-fired power plant is the primary source of power at Ball State University in Munice, Indiana. Like many college campuses, Ball State relies on this less than clean source of energy to power dozens of buildings for thousands of students and faculty. But unlike many other schools, Ball State has a team of people working on ways to clean up this plant. Team members are also working on other environmental problems the school faces. John Vann is Ball State’s Green Initiatives Coordinator. That’s a new position at the school this year. He says his title has already made things easier for those in the campus community who are looking to improve the environment.


“If I were just another faculty member that said, ya know you should really program your computer to shut down the monitor, it doesn’t carry the same weight if I am dealing with a Dean or with someone else that having this position does. So that really helps to facilitate my implementation of the initiatives.”


Vann’s position is not common among colleges and universities. A new report by the National Wildlife Federation shows that less than ten percent of campuses have a position similar to his. That’s one finding in the wide-ranging survey that looked at about a thousand campuses across the country. The Federation developed a report card to assess how well schools are doing in several areas. The NWF is giving schools a C minus for Transportation issues, largely because schools tend to buy large gas guzzling cars for faculty to use on road trips, and inefficient trucks for campus work fleets. The report card also includes a B minus for landscaping efforts. The report says most campuses are still using massive amount of pesticides and fertilizers to create those flowerbeds of school colors found around campus. Few are using native plants that require less water and fewer chemicals. Kathy Cacciola is the Campus Ecology Coordinator for NWF. She says things are not completely bleak. Schools are receiving A’s in some important areas.


“Energy conservation measures and efficiency upgrades are a key area where there has been improved environmental performance, with 81 percent of colleges and universities instituting lighting efficiency upgrades and 20 percent having plans to do more. That really demonstrates that higher education institutions have taken the lead on really making advances toward a sustainable future.”


But Cacciola points out that cost savings are likely the motivating factor for those areas of improvement. With high-energy prices, a campus wide program to purchase more efficient lighting, for instance, is often more about money than about the environment. She says in other areas where the financial benefit may not be so great, campuses did not do as well.
The National Wildlife Federation hopes the study will encourage colleges to take a closer look at their environmental practices. Tom Lowe agrees. He’s a Dean and assistant Provost at Ball State. He says there is many things colleges should be doing to improve their sustainability. He says one example would be to use more of the multi-million dollar budgets of colleges to buy recycled and environmentally sensitive items.


“And if we could just direct a small portion of those purchases toward sound environmental items, we could stimulate a market in those items, plus we could enable small businesses what are starting up producing those items to make a profit.”


Lowe says colleges have a responsibility to lead the way for other large institutions such as corporations and medical facilities. He says campuses can be showcases for how to be environmentally friendly in an economically practical way. The report from the National Wildlife Federation shows some campuses are already on that track. For the Great Lakes Radio Consortium, I’m Jonathan Ahl.

Related Links

Bureaucracy’s Bright Side

The Supreme Court of Canada recently upheld the right of Canadian municipalities to restrict the use of pesticides within their boundaries. The decision marks the end of a 10 year lawsuit between the town of Hudson, Quebec and two companies – Chemlawn and Spraytech. The companies had sued the town, claiming municipalities did not have the power to control pesticide use. Great Lakes Radio Consortium commentator Suzanne Elston says that Canada’s unique political structure has set a challenging precedent:

Transcript

The Supreme Court of Canada recently upheld the right of Canadian municipalities to restrict the use of pesticides within their boundaries. The decision marks the end of a 10-year lawsuit between the town of Hudson, Quebec and two companies – Chemlawn and Spraytech. The companies had sued the town, claiming municipalities did not have the power to control pesticide use. Great Lakes Radio Consortium commentator Suzanne Elston says that Canada’s unique political structure has set a challenging precedent.


In Canada we have so many different levels of government each with its own area of responsibility. The problem is these areas frequently overlap, causing a bureaucratic nightmare. This particularly Canadian phenomenon has been dubbed jurisdictional gridlock.


Look at how we handle pesticides. They have to be registered federally in order to be manufactured and marketed. Provincial permission is required for companies to sell or apply them. And at the local level, municipalities can enact by-laws concerning their application.


In the U.S., by contrast, the handling, distribution and licensing of pesticides all falls under federal jurisdiction. So at least you only have to deal with one level of government, which should save time and effort.


But a recent victory by the town of Hudson, Quebec has demonstrated that sometimes a lot of red tape can actually be a good thing. The town’s battle to control the use of pesticides within its borders went all the way to the Supreme Court of Canada. The court not only upheld their right to protect local health and the environment, it also encouraged other municipalities to follow the Hudson example within the broad domain of Canadian and international law.


This wasn’t just a victory for community activists in Hudson. The Supreme Court decision gave all Canadian communities the power to take action on their own behalf. And believe me, they’re seizing that power. In the wake of the Hudson decision, towns and cities right across the country are in the process of enacting legislation that would severely restrict the use of pesticides within their borders.


This is a remarkable turn of events. And it clearly demonstrates the power that one small community can have. Jurisdictional gridlock may be a pain to wade through, but in light of what happened in Hudson, it can also be a really good thing.

Biological Control Gone Awry

Many of the earth-friendly pest control methods developed by organic farmers have become popular among gardeners and homeowners. But when Great Lakes Radio Consortium commentator Tom Springer bought guinea hens to eat troublesome insects, he ended up with a different kind of pest… and a new respect for the challenges of organic agriculture:

Pesticide Links to Parkinson’s Disease

Parkinson’s Disease has been in the news a lot recently ever since
actor Michael J. Fox announced that he’s a victim of the disease.
Scientist have been studying Parkinson’s for years, but still haven’t
determined what causes the tremors and other symptoms. But now, one
researcher thinks he may know the answer…and beginning this January,
he’ll begin to test his theory. The Great Lakes Radio Consortium’s Todd
Witter has more:

Consumer Group Calls for Pesticide Ban

A consumer’s group wants the E-P-A to ban 40 pesticides that are usedon food children often eat. The Consumers’ Union says there are saferalternatives, but farmers say those alternatives are not available yet.The Great Lakes Radio Consortium’s Lester Graham reports:

Schools Test I-P-M

We usually hear about Integrated Pest Management – or I-P-M – as itrelates to agriculture. In that setting, it’s a way to help reduce oreliminate the amount of pesticides farmers use on their crops. But theconcept of I-P-M is catching on in other places too.As the Great Lakes Radio Consortium’s Wendy Nelson reports, somestates are taking Integrated Pest Management from the cornfields, righton into the classroom.

D-D-E May Degrade Naturally

The notorious pesticide D-D-T was banned in the United States in the 1970’s. But D-D-T left behind several toxic byproducts. One of those is D-D-E. However, a new study published in this month’s Science magazine suggests that D-D-E may be decaying naturally. The Great Lakes Radio Consortium’s Steve Frenkel reports:

Rat Patrol

They can chew through cinderblock…tread water for days…And survive…if necessary, by just eating dog feces. But they’re not some kind of mutant superhero…they’re rats. And in cities, where rat populations can quickly explode, there’s a constant battle against the resilient rodents. Today, some cities are winning the war with some surprisingly simple solutions. The Great Lakes Radio Consortium’s Wendy Nelson explains: