Road salt spread on the streets of Ann Arbor, MI has a corrosive effect on this sewer grate. Many cities and states are looking for a less damaging, and more environmentally sensitive alternative to road salt.
Many highway departments in the Midwest are looking into alternative ways to remove snow and ice from streets. The Great Lakes Radio Consortium’s Jonathan Ahl reports:
Transcript
Many highway departments in the Midwest are looking into alternative ways to remove
snow and ice from streets. The Great Lakes Radio Consortium’s Jonathan Ahl reports:
Most states and cities use rock salt and Calcium Chloride to keep streets from becoming
slippery and dangerous, but several companies are marketing additives to salt that they
say are just as effective, but do not include many of the pollutants that come from salt.
Graig Phelps is with Natural Solutions, a company that makes one of the additives:
“There’s a definite move to limit the nutrients that are applied through snow and
ice control. Phosphorus, copper, zinc, irons, and your heavy metals, which also have a
tendency to accumulate.”
Phelps says in addition to reducing pollutants, the additives also cut down on wear and
tear of streets and trucks because the bio-based products are non-corrosive. While the
use of the corn-based de-icers is on the rise, many cities say they have to wait until the
price comes down before converting to the new products. For the Great Lakes Radio
Consortium, I’m Jonathan Ahl.
Hospitals produce a lot of waste – everything from bio-hazards to mercury to dirty linens. Now, a program to get hospitals to pollute less is stepping up its efforts. The Great Lakes Radio Consortium’s Lester Graham reports:
The EPA is planning to regulate smoke
from diesel engines in farm and construction equipment. Photo courtesy of NESCAUM.
You see them every time you pass a construction site: big machines belching thick diesel smoke. The smoke isn’t just annoying. It causes major health and environmental problems. Now, after years of dealing with other issues, the EPA is taking on this major source of uncontrolled pollution: emissions from farm and construction equipment. The Great Lakes Radio Consortium’s Julie Halpert looks at the challenges the EPA faces in this far-reaching regulatory effort:
Transcript
You see them every time you pass a construction site. Big machines belching thick diesel smoke. The smoke isn’t just annoying. It causes major health and environmental problems. Now, after years of dealing with other issues, the EPA is taking on this major source of uncontrolled pollution: emissions from farm and construction equipment. The Great Lakes Radio Consortium’s Julie Halpert looks at the challenges EPA faces in this far-reaching regulatory effort.
Emissions from diesel engines create problems for both the environment and people’s health. Diesels release nitrogen oxides, which are a factor in acid rain and smog. They also spew very fine particulates that can lodge deep in the lung when inhaled. And that causes respiratory problems.
Controlling these emissions is no easy task. That’s because most diesel engines still burn fuel containing high amounts of sulfur. The sulfur clogs up existing pollution control devices. And that makes it a lot tougher to come up with ways to reduce emissions. But Christopher Grundler, deputy director of the EPA’s Office of Transportation and Air Quality in Ann Arbor, Michigan, says its an important challenge.
“In the year 2007 we estimate that off road or non-road emissions will make up over 40% of the air pollution from mobile sources or transportation sources, so it’s a big deal.”
In tackling air pollution, EPA’s first job was to clean up gasoline car emissions. Now its moving onto diesels. The agency’s first challenge came when they issued a rule for highway trucks last year. That plan drops sulfur content in diesel fuel from 500 parts per million to 15 parts per million. It also reduces overall diesel emissions by 90% by the year 2007. The EPA now wants to use this rule as a model for farm and construction equipment as well. But the agency is likely to face opposition from refiners, who are fighting the on road rule. Jim Williams is with the American Petroleum Institute.
“We feel that the ability of the refining industry to make sufficient volumes of 15 ppm in the timeframe that EPA wants us to is highly questionable, whether we can do that. We’ve done some studies that show there will be supply shortfalls with the 15-ppm limit.”
Williams is pushing to phase in the requirement over a longer period. He says that would give refiners more time to produce the necessary quantities of low sulfur fuel. Until then, refiners also want to continue providing high sulfur fuel.
But Engine Manufacturers don’t like that idea. They’ve agreed to support tough standards only if the switchover to low sulfur fuel happens quickly. Jed Mandel runs the Engine Manufacturers Association. He’s worried that if cheaper, low sulfur fuel remains abundant; users could continue relying on the dirtier fuel.
“If there are dual fuels available — if there’s cleaner fuel on the marketplace for some time, as well as higher sulfur dirtier fuel, and there’s a price differential in that fuel, there will be a disincentive for users to buy the cleanest engines.”
Mandel says that could cause a delay in purchasing these engines for several years.
Like Mandel, Jason Grumet, executive director of the Northeast States for Coordinated Air Use Management, also wants tight standards. Northeast states, plagued with acid rain and smog caused largely by these diesels, are pushing the EPA to develop the tightest standards possible to meet clean air goals and also to better protect equipment operators.
“The particles from diesel emissions can lodge very deep within the human lung and we know that these particles are carcinogens, so for folks who work with construction equipment every day or on construction sites, for people who farm or plow fields for several hours a day, we think that the emissions of diesel pollutants cause a very substantial and real threat to their health.”
(sound of tractor)
Herb Smith isn’t worried about his health. Smith hops off his tractor and stands on the land that his family has farmed in Ida Township, Michigan since 1865. Despite years of inhaling diesel fumes, Smith said he’s in perfect physical condition. Though he supports regulations to control diesel emissions, he’s worried that the EPA will place undue hardship on farmers.
“I am concerned about fuel costs because our margin in farming is very slim and anything we add to fuel costs, we have to absorb it.”
Smith fears that some of the smaller farmers may not be able to bear higher fuel and engine costs and could go out of business.
Despite the many different viewpoints on the issue, EPA’s Grundler is confident that his agency can develop a rule that will bring tremendous public health benefits at a reasonable cost.
“We’ve shown we can do it for cars and SUVs. We’ve shown it can be done for heavy duty on highway engines. I’m absolutely certain it can be done for these sorts of engines as well.”
The agency expects to issue a technical report outlining emission control options by the end of the year. A proposal is due by the middle of next year. For The Great Lakes Radio Consortium, I’m Julie Halpert.
Trading credits for air pollution reduction just went online. The EPA has set up its emissions trading system on the Internet. The Great Lakes Radio Consortium’s Lester Graham reports:
Transcript
Trading credits for air pollution reduction just went on-line. The EPA has set up its emissions trading system on the Internet. The Great Lakes Radio Consortium’s Lester Graham reports.
The EPA’s 20-billion dollar emissions trading market has been around for awhile. It allows companies that reduce pollution below mandated levels to sell the remainder of their allowances to other companies that have not met mandated reductions. But trading has been paperwork intensive. Forms have had to be sent into the EPA for processing, delaying the trade by days. Now the EPA has harnessed the Internet, allowing the more than two thousand companies enrolled to trade online. Brian McLean is the Director of the EPA’s Clean Air Markets Division.
“It speeds up the trading process which therefore saves on the cost of buying and selling and moving these allowances and the more we can take advantage of lower cost emission reductions.”
The EPA says the trading system helps companies meet the goal set by Congress in 1980 to cut overall emissions in half by 2010.
For the Great Lakes Radio Consortium I’m Lester Graham.
Scientists who monitor pollutants in rain and snow in the U.S. are offering their monitoring network to be used in the event of a wide scale bioterrorist attack. The Great Lakes Radio Consortium’s David Sommerstein has more:
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Scientists who monitor pollutants in rain and snow in the U.S. and Great Lakes are offering their monitoring network to be used in the event of a wide scale bioterrorist attack. The Great Lakes Radio Consortium’s David Sommerstein has more.
The National Atmospheric Deposition Program is best known for its early detection of acid rain in the 1970s. It has a network of over 200 sites that measure chemicals like sulfur dioxides and mercury in precipitation. But coordinator Van Bowersox says the network could also be used in the case of an environmental emergency to trace things like anthrax spore.
“To help track perhaps the source of the material or perhaps just how wide dispersed the material may be. So this would be, for example, for a widespread release of a bioterrorism agent over a broad area.”
Bowersox says the samples of such agents would be sent to a special laboratory for analysis.
The idea wouldn’t be an unprecedented use for the network. The NADP surveyed the nation’s atmosphere for nucleotides following the Chernobyl nuclear disaster. It also measured the amount of particles in the air after the eruption of Mount St. Helens.
For the Great Lakes Radio Consortium, I’m David Sommerstein.
A Great Lakes state is reporting positive results from a program designed to keep a major cause of water pollution out of water supplies. The Great Lakes Radio Consortium’s Jonathan Ahl reports:
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A Great Lakes State is reporting positive results from a program designed to keep a major cause of water pollution out of water supplies. The Great Lakes Radio Consortium’s Jonathan Ahl reports:
Each fall, many farmers apply nitrogen-based fertilizers to their fields. If the chemicals are used when it is still warm, they can convert into nitrates that can contaminate rivers, lakes, and water supplies. The Illinois Farm Bureau launched an educational campaign this year to teach farmers when to apply such fertilizers to keep pollutants out of the water. Bob Hoeft is an agronomist with the University of Illinois. He says the program made a real difference with farmers:
“They either didn’t know or hadn’t really thought about the potential for this loss to occur. We’ve had this information out there for a long time, but obviously didn’t reach as many people as we did this year.”
Hoeft says statewide, there was only one report of early application of nitrogen fertilizers. He says other states have already contacted him to find out more about Illinois’ campaign. For the Great Lakes Radio Consortium, I’m Jonathan Ahl.
Chicago is the first major city in the U.S. to commit to a carbon emissions trading system. The Great Lakes Radio Consortium’s Lester Graham reports:
Transcript
Chicago is the first major city in the U.S. to commit to a carbon emissions trading system. The Great Lakes Radio Consortium’s Lester Graham reports.
Chicago Mayor Richard Daley has announced that the municipality would join two-dozen private companies that have signed on with the Chicago Climate Exchange. The exchange will create a market in carbon dioxide emissions futures. To reduce greenhouse gas emissions, Daley is recommending the city take a new approach to energy; replacing the bulbs in traffic signals with new longer-lasting, brighter, but more energy efficient bulbs. He also wants the city to put in more energy efficient boilers, and increase the use of cleaner-burning alternative fuels in the city’s fleet of cars and equipment. The city will be able to trade any savings in carbon emissions for shares in carbon futures, supplementing city coffers. The mayor admonished business leaders to find creative solutions to energy and environmental problems, such as the Chicago Climate Exchange. Although the city government buildings and cars make up only a small fraction of the city’s pollution sources, the mayor’s initiative is expected to be an example for the private sector. For the Great Lakes Radio Consortium, I’m Lester Graham.
An environmental lobby group in Canada says the Ontario Ministry of Environment watches industrial plants pollute the Great Lakes, but rarely enforces pollution laws. The Great Lakes Radio Consortium’s Lester Graham has the details:
Transcript
An environmental lobby group in Canada says the Ontario Ministry of Environment watches industrial plants pollute the Great Lakes, but rarely enforces pollution laws. The Great Lakes Radio Consortium’s Lester Graham reports.
Between 1995 and 1999, polluters’ violated Ontario’s water pollution laws ten thousand times, but only eleven plants faced any penalties. Elaine McDonald is a staff scientist with the Sierra Legal Defense Fund, based in Toronto, which published a report on the findings. She says the problem started when the government cut the Ministry of Environment’s budget by about 40-percent:
“This resulted in lax enforcement in the field and– basically a policy of lax enforcement and therefore we saw this sudden increase in violations and very few charged being made.”
The Sierra Legal Defense Fund is calling on the Ontario government to crack down on Great Lakes polluters. The environmentalists say they do see signs of improvement, with more charges being filed in recent months against repeat pollution offenders. For the Great Lakes Radio Consortium, I’m Lester Graham.
The Great Lakes region is home to major power producers. But along with the electricity they make comes some amount of air pollution. When coal-fired power plants in Illinois and Ohio emit sulfur dioxides, prevailing winds blow them to the Northeast, where they can fall as acid rain. Several northeast states are suing those power plants to clean up their emissions. Earlier this summer, a professor at Clarkson University in northern New York coordinated a unique study to learn more about the life cycle of air pollution, from where it’s produced to where it lands. The Great Lakes Radio Consortium’s David Sommerstein has the story:
Transcript
The Great Lakes region is home to major power producers. But along with the electricity they make comes some amount of air pollution. When coal-fired power plants in Illinois and Ohio emit sulfur dioxides, prevailing winds blow them to the Northeast, where they can fall as acid rain. Several northeast states are suing those power plants to clean up their emissions.
Earlier this summer, a professor at Clarkson University in northern New York coordinated a unique study to learn more about the life cycle of air pollution, from where it’s produced to where it lands. The Great Lakes Radio Consortium’s David Sommerstein has the story.
Chemical engineering professor Phil Hopke will take any opportunity to get out of his office and over to his field lab. It consists of a concrete slab amongst the weeds in a corner of the local airport. Installed on the concrete are monitors he uses to find out exactly what’s in the air we breathe.
(sound of opening lock)
Hopke unlocks a gate in a chainlink fence. You can already hear a strange hum in the distance. It gets louder as Hopke strides up to one of three white machines the size of dishwashers.
“Come out and change the filters once a day. This one’s for organic constituents in the air.”
He pulls out what looks like an air filter for your furnace. These machines suck in air. They leave a unique footprint of chemicals on the filter that represents what was in the air in this place on this day — chemicals like sulfur dioxide and mercury. Hopke will send these filters to specialty labs around the world to be analyzed.
There are hundreds of stations like this in North America. Groups of researchers study daily air quality for every region of the country. They examine how things like traffic and smokestacks might affect the air we breathe.
But Hopke says they mostly focus on their own areas. They don’t often coordinate studies to see how the chemicals they find move from region to region.
“It struck me a couple of years ago, particularly in the Northeast, that we have these groups talking to one another.”
Working with the U.S. Environmental Protection Agency, Hopke convinced 26 sites in the East, from Texas to Toronto, to measure the same stuff on the same days. They chose the whole month of July.
It’s perhaps the largest simultaneous air sampling effort ever conducted in this country. When the data’s complete, the study will track the lifespan of pollution, from when it leaves a smokestack or a car’s tailpipe to when it is taken up by a tree or your lungs.
But scientists can’t just follow one molecule of pollution from a car in St. Louis to a lake in Michigan. They have to make models of how the chemicals move, like how meteorologists make weather maps to trace storm systems. As if that’s not complicated enough, says Hopke, naturally occurring chemicals make the job even tougher.
“You have to keep in mind that the Blue Ridge Mountains in Virginia are blue because of natural photochemical smog, particles being formed because of the pine materials that come off. Those materials that you smell are chemically reactive and will undergo the same type of smog reactions as human emitted materials.”
So researchers use techniques to separate out the “man-made” pollutants from the “natural” pollutants. Next they look for high concentrations of, say, sulfur dioxide in Chicago on July 15th. Then they follow those high levels east with prevailing winds. They look for high sulfur dioxide levels in Ohio or New York a few days later. After doing this many times in July for many types of chemicals, the researchers hope patterns will begin to emerge.
Hopke sits on a scientific advisory committee that helps the EPA develop pollution standards. He says this coordinated study will bring stronger science to the EPA’s sometimes controversial decisions.
“Suppose I require all power plants to reduce their sulfur dioxide emissions by twenty percent. What does that do for me for particle concentrations in New York City? What will that do? Will that get us where we want in terms of clean air?”
With a study this large in scope, the answers to those questions won’t come quickly. The massive amount of data gathered in the study will take a few years to interpret.
In the meantime, Hopke and the EPA are planning another cooperative sampling effort for wintertime, when temperatures and people’s habits are different from summer.
For the Great Lakes Radio Consortium, I’m David Sommerstein.
To get more states to comply with the federal Clean Water Act, environmental activists are taking them to court. Ohio is the latest example. The Great Lakes Radio Consortium’s Bill Cohen has more:
Transcript
To get more states complying with the federal clean water act….environmental activists are taking them to court. Ohio’s the latest example. The Great Lakes Radio Consortium’s Bill Cohen reports:
Mercury from power plants, run-off from farm fields, and poisons from manufacturers – they’re all in Ohio rivers and streams. In fact, nearly 900 are officially called “impaired.”
The state EPA has asked legislators for extra cash to prepare clean-up plans….but the money has never come through. So now, activists like Jack Shaner of the Ohio Environmental Council have filed a court suit. It demands the feds force Ohio to act.
“The Ohio EPA has told the feds it will take 25 years just to come up with the cleanup plans and that doesn’t include the cleanup itself.”
A key senator says Ohio’s made what he calls great strides. Jim Carnes cites the revival of Lake Erie. He’d like the clean-up to move faster but he notes Ohio has a budget crisis – “there’s not an unlimited supply of money.”
For the Great Lakes Radio Consortium, I’m Bill Cohen in Columbus.
Road salt spread on the streets of Ann Arbor, MI has a corrosive effect on this sewer grate. Many cities and states are looking for a less damaging, and more environmentally sensitive alternative to road salt.