Pennsylvanians want more electricity to come from renewable sources
live.psu.edu/story/60984#nw69
Thursday, August 30, 2012
There is broad support for increasing the amount of renewable energy production from sources such as wind in the state.
UNIVERSITY PARK, Pa. — There is broad public support among Pennsylvania residents for increased renewable-energy generation, according to a study recently conducted by researchers in Penn State’s College of Agricultural Sciences.
The research found that Pennsylvanians rate hydropower, solar electricity and wind power highest among electricity generation technologies, followed by nuclear power and natural gas. The results indicate that the average Pennsylvania household is willing to pay an extra $55 per year to increase renewable-energy production by an amount equal to 1 percent of Pennsylvania electricity consumption.
The study, “Pennsylvanians’ Attitudes Toward Renewable Energy,” was conducted by Clare Hinrichs, associate professor of rural sociology, and Richard Ready, professor of agricultural and environmental economics, with assistance from doctoral students John Eshleman and James Yoo. The project was funded by a grant from the Center for Rural Pennsylvania, a legislative agency of the Pennsylvania General Assembly.
“The dominant message that came across was that there is broad support for increasing the amount of renewable energy production in the state, and there is broad support for the state taking an active role in encouraging that,” Ready said. “The majority of Pennsylvanians support strengthening the state’s alternative-energy portfolio standard that mandates that a certain amount of electricity comes from renewable sources.”
Ready noted that researchers were surprised they did not find a single group of respondents who disagreed. Read more
Energy a focus at Penn State’s Ag Progress Days
live.psu.edu/story/60528#nw69
Monday, July 30, 2012
UNIVERSITY PARK, Pa. — Energy — be it solar, wind, biofuels from plants or natural gas extracted from the Marcellus Shale — again will be a focus at Ag Progress Days, Aug. 14-16.
New this year is the Renewable Energy Showcase, a series of presentations on energy resources and conservation practices, to be held on Tuesday, Aug. 14, in the Learning Center Tent at Main and East 9th streets (below the Pasto Museum).
“These will be short, informative presentations by industry experts and Penn State Extension energy specialists,” said Ed Johnstonbaugh, extension educator, who is coordinating the showcase. “The topics will focus on conservation, solar and wind energy, and biogas and biomass energy. We have a great lineup of educational and thought-provoking presentations.”
Topics will be presented all three days at the following times:
Noon — Conservation
–Travel Adventures on a Solar-Powered Canal Boat
–Energy Efficiency and Conservation to Lower Costs
–Southwest Pa. Renewable Energy Incubator Project Update
1 p.m. — Solar and Wind Energy
–Solar Energy 101, Financing Options, System Design, and Combination Benefits
–Why Wind? Developing the Partnerships
2:15 p.m. — Biogas and Biomass Energy
–Manure Cures: Benefits of Biogas
–Switchgrass Pellets for Fuel
–Warm Season Grasses as Bioenergy Crops and for Environmental Benefits
–Woody Crops as Biomass Energy Resources
Ag Progress Days visitors also will have the opportunity to talk with commercial exhibitors involved in alternative-energy opportunities and conservation in the Energy Conservation Area on West 9th Street.
In addition, energy crops and biofuels will be the subject of an exhibit in the new Joseph D. Harrington Crops, Soils, and Conservation Building at the end of East 5th Street. Information will be available about several varieties of plants that can be grown by farmers in the Northeast and converted into energy.
“Our team is working to develop bioenergy cropping systems that provide value-added co-products and soil-conservation benefits in addition to bioenergy,” said Dan Ciolkosz, extension associate who specializes in energy crops. “This work will be on display at Ag Progress Days.”
Show attendees also can collect fact-based and timely information on issues related to Marcellus Shale exploration, leasing and drilling from Penn State extension educators and commercial vendors at the Marcellus Center on West 10th Street.
“The development of the Marcellus Shale has impacted the agricultural community in many ways,” said Tom Murphy, extension educator and co-director of Penn State’s Marcellus Center for Outreach and Research.
“Our focus this year at Ag Progress Days will be to present science-based information on topics ranging from the latest research on industry workforce development to remediation techniques after pipeline installation, and many other related subjects in between.”
Sponsored by Penn State’s College of Agricultural Sciences, Ag Progress Days is held at the Russell E. Larson Agricultural Research Center at Rock Springs, nine miles southwest of State College on Route 45. Hours are 9 a.m. to 5 p.m. on Aug. 14; 9 a.m. to 8 p.m. on Aug. 15; and 9 a.m. to 4 p.m. on Aug. 16. Admission and parking are free.
For more information, visit the Ag Progress Days website at http://apd.psu.edu. Twitter users can find and share information about the event by using the hashtag #agprogress.
Air quality concerns raised as gas compressor stations multiply
The number of natural gas compressor stations planned for Northeastern Pennsylvania is multiplying as companies lay more pipelines to carry Marcellus Shale gas to customers.
The state has issued or is considering 29 air quality permits for separate stations in the northeast region, all of them in Susquehanna, Wyoming and Luzerne counties, according to a tally by the Department of Environmental Protection. Nearly two dozen of the permits are for stations planned within a 15-mile radius of the Susquehanna County seat in Montrose.
DEP has issued 383 of the permits statewide since October 2005, according to the agency’s tally. Not all of the permitted stations have been built and some may never materialize.
The permits cover facilities related to gas production, including compressor stations and dehydration units that strip liquid from the gas and speed it up for transport through interstate pipelines.
Each station emits a mix of pollutants – volatile organic compounds (VOCs), nitrogen oxides (NOx), formaldehyde and greenhouse gasses – in varying amounts that are limited by the type of permit governing the site.
Residents concerned about the proliferating stations’ impact on air quality have brought basic questions to public hearings in the region that are sometimes held as the state considers issuing permits: How many compressor stations will be built here? What is the combined impact of all these new pollution sources? When, if ever, can the state say stop?
The state considers the cumulative effect of the compressors using an existing network of monitoring stations that measure the ambient air quality, mostly in urban areas, Mark Wejkszner, DEP’s regional air quality program manager, told an audience at a hearing this spring in Susquehanna County. The closest monitors are in Scranton and Wilkes-Barre, about 30 miles away.
Pollution levels above federal air quality standards measured at those stations would determine if the state issues fewer or stricter permits, he said, but “right now, we’re in compliance with all of them with a lot of leeway.”
Environmental groups have criticized the state in lawsuits, letters to federal regulators and in public comments on proposed permits and regulations arguing that DEP is not doing all it can under the law to limit the amount of pollution the oil and gas facilities are allowed to emit.
They say that the state’s current air quality monitoring network is inadequate to measure the impacts of gas drilling and infrastructure in rural areas far from the established monitors clustered in population centers and point out that it is too late now – years into the development of the gas-rich shale – to measure what the air was like before the wells, pipelines and compressors were built.
“DEP does not have a comprehensive monitoring program to monitor contaminants in the air throughout the shale play regions of the state,” PennFuture president George Jugovic Jr. said. “We’re not monitoring for VOCs in these rural areas. We’re not monitoring for toxics. Having already begun this development, baseline is not really a question anymore. Now the question is can we get monitoring to ensure there are no local or regional impacts as we move forward.”
Jugovic was the director of DEP’s southwest regional office prior to joining PennFuture last year. He testified at a state House Democratic Policy Committee hearing in February that his former regional office alone has permitted over 13,000 tons per year of NOx emissions from compressor stations. If each station emitted the maximum allowed by its permit, it would add up to about 10 percent of the NOx emissions from all sources of air pollution statewide.
Nitrogen oxides, which are commonly released in car exhaust and cigarette smoke and by burning fossil fuels, can contribute to respiratory problems and lung damage on their own as well as when they are combined with sunlight and volatile organic compounds to form smog.
Environmental groups also say the state is not using a tool frequently enough that would limit emissions by considering connected wells, pipelines and compressors owned by the same company and built near one another as one pollution source governed by one, stricter permit – a process called aggregation.
None of the oil and gas air pollution sources permitted in Northeastern Pennsylvania have been aggregated, a DEP spokeswoman said, but all of them have been evaluated to see if the aggregation rules apply.
“It’s like a cumulative impact assessment,” Jugovic said. “If you look at each pollution source individually, it never looks like a significant impact on the air or the water. But whenever you look at it more holistically, you start seeing a bigger potential impact, which may lead you to regulate it differently.”
Read more
Natural gas as a transportation fuel the topic of conference
live.psu.edu/story/59583#nw69
Thursday, May 3, 2012
Increasingly, bus companies are switching to natural gas fuel. Shown here, a Centre Area Transportation Authority vehicle 'gases' up.
UNIVERSITY PARK, Pa. — A one-day conference in Lehigh County, sponsored by Penn State’s College of Agricultural Sciences, will provide a comprehensive overview of using natural gas as a transportation fuel in Pennsylvania and the mid-Atlantic region.
“Natural Gas Vehicles: The Road Ahead in Pennsylvania” will be held from 9 a.m. to 4:30 p.m. on Monday, June 11, at Penn State Lehigh Valley in Center Valley. The program is being organized by Penn State Extension.
“The conference will be a place where clean-air and clean-transportation advocates, industry stakeholders, fleet managers and policymakers can learn the fundamentals of using natural gas as a transportation fuel,” said conference coordinator Dave Messersmith, extension educator and member of Extension’s Marcellus Education Team.
“Professionals attending the sessions will be able to network with other natural gas vehicle stakeholders, and they can discuss opportunities and challenges to greater adoption of natural gas as a transportation fuel.”
The conference will feature sessions titled “A Primer on Natural Gas as a Transportation Fuel,” “What’s Happening with Natural Gas Vehicles in Pennsylvania and the Mid-Atlantic,” “Understanding Shale Gas in Pennsylvania and Natural Gas Market Outlook,” “The Texas Clean Transportation Triangle: A Model for Success,” “Engine and Conversion Technologies,” and “Fueling Station Concepts and Technologies.”
Presenters include researchers, entrepreneurs and industry experts who will provide a fundamental understanding of natural gas as a transportation fuel.
The registration fee for the conference is $149. For more information, contact Carol Loveland at 570-433-3040 or by email at cal24@psu.edu.
To register for the conference by phone, call toll-free 877-489-1398. To register online, go to the conference website at http://agsci.psu.edu/natural-gas-vehicles and click on RSVP in the gray bar near the top of the page.
Ex-DEP Official Says All Pa. Oil, Gas Waste Needs Treatment
www.manufacturing.net/news/2012/04/ex-dep-official-says-all-pa-oil-gas-waste-needs-treatment
Mon, 04/16/2012
PITTSBURGH (AP) — A former top environmental official says Pennsylvania’s successful efforts to keep Marcellus Shale wastewater away from drinking water supplies should be extended to all other oil and gas drillers.
“It’s the same industry. It is the same contaminants. And the goal should be the same,” said George Jugovic Jr., who was formerly the Department of Environmental Protection’s southwest regional director. He’s now president of PennFuture, an environmental group.
An AP analysis of state data found that in the second half of 2011 about 1.86 million barrels — or about 78 million gallons — of drilling wastewater from conventional oil and gas wells were still being sent to treatmentplants that discharge into rivers.
The core issue is whether a problem in waterways has been solved, or if more needs to be done.
In 2010 health experts raised alarms when they found soaring levels of ultra-salty bromides in rivers and streams that are major sources of drinking water. The general view was that wastewater from Marcellus Shalegas drilling — polluted with heavy bromides from deep underground — was contributing to the problem.
High levels of bromides can contaminate drinking water with levels that exceed national safety standards and are potentially harmful. Though not considered a pollutant by themselves, the bromides combine with the chlorine used in water treatment to produce trihalomethanes, which may cause cancer if ingested over a long period of time.
Bromide levels were so high in rivers during 2010 that they caused corrosion at some plants that were using the water.
But since the spring of 2011 most Marcellus drillers have been recycling the fluids, or sending then to deep underground wells mostly in Ohio.
The gas-rich Marcellus, which lies thousands of feet underground, has attracted a gold rush of drillers who have drilled almost 5,000 new wells in the last five years. But the state also has about 70,000 older oil and gaswells, according to DEP statistics, that target different, shallower reserves.
Researchers say the bromide levels did drop last summer, but they had also expected even more of a decline after virtually all of the Marcellus Shale drillers stopped disposing wastewater into plants that discharge into rivers.
But conventional oil and gas wells weren’t included in last year’s recycling push — a loophole that state environmental officials downplayed at the time.
Jugovic said DEP secretary Mike Krancer should now take “the next step” and get voluntary compliance from the rest of the gas industry.
“It’s hard scientifically to justify a distinction between treating conventional wastewater differently. The wastewater is being disposed in plants that are not capable of treating those contaminants,” he said.
Dave Mashek, a spokesman for the Pa. Independent Oil & Gas Association, declined to comment.
Kevin Sunday, a DEP spokesman, claimed that the volume of conventional oil and gas waste is “substantially smaller” than the Marcellus amounts.
But the AP found that 78 million gallons of oil and gas wastewater were still being taken to treatment plants in the last half of 2011 — about 33 percent less than the Marcellus quantity that was raising concerns in 2010, but still a substantial amount. If that rate continues, the conventional wells will send about 150 million gallons of the wastewater to treatment plants that discharge into rivers this year.
Sunday said the agency encourages wastewater recycling, “regardless of the industry involved,” and added that the conventional oil and gas drillers don’t produce as much wastewater as the Marcellus drillers.
Sunday also said that the agency has created a new, revised permit to encourage recycling of waste. Ten facilities have applied for the new permit, and if all are approved, that would double the number of such facilities in the state.
David Sternberg, a spokesman for the U.S. Environmental Protection Agency, didn’t directly answer a question about whether there was any scientific justification for treating the non-Marcellus waste differently. Sternberg said EPA, which urged Pennsylvania regulators last year to halt the dumping, is working closely with state regulators “to ensure that, where wastewater treatment facilities are accepting oil and gas wastewaters, discharges from these treatment facilities are in compliance with the Clean Water Act.”
Jugovic said that some previous assumptions about the non-Marcellus waste turned out to be false. For example, there were suggestions that it generally contained much lower levels of bromides and other contaminants.
He said some of the shallow wells had very high levels of total dissolved solids and other contaminants that can be a problem for drinking water supplies.
Jugovic also said that the fact that 97 percent of Marcellus drillers appear to be complying with the wastewater restrictions raises a fairness issue. Why, he asked, should the conventional oil and gas drillers and the remaining 3 percent of drillers get a pass?
Now, researchers are waiting for expected lower river levels in the summer, to see if the bromide problem has really gone away. The higher flows in early spring dilute any contaminants and make it harder to draw conclusions about the bromides.
Study: ’Fracking’ may increase air pollution health risks
www.timesleader.com/stories/Study-Fracking-may-increase-air-pollution-health-risks-,129383
By Neela Banerjee, Los Angeles Times
Air pollution caused by hydraulic fracturing, a controversial oil and gas drilling method, may contribute to “acute and chronic health problems for those living near natural gas drilling sites,” according to a new study from the Colorado School of Public Health.
The study, based on three years of monitoring at Colorado sites, found a number of “potentially toxic petroleum hydrocarbons in the air near the wells including benzene, ethylbenzene, toluene and xylene.” The Environmental Protection Agency has identified benzene as a known carcinogen.
Soon to be published in an upcoming edition of Science of the Total Environment, the report said that those living within a half-mile of a natural gas drilling site faced greater health risks than those who live farther away. Colorado allows companies to drill for natural gas within 150 feet of homes.
Hydraulic fracturing, or fracking, involves injecting great volumes of water and sand laced with chemicals into shale formations to break apart the rock and unlock reservoirs of oil and gas. Its advocates say it carries minimal environmental risks and the chance of great economic rewards for companies and communities. Its critics have largely focused so far on fracking’s possible contamination of underground and surface water.
But when a well is fracked, it’s almost as if a small factory is rapidly erected at the drilling site, as machinery and tanks of chemicals and water are brought in. Studies have shown that air pollution at many of these sites is greater than in surrounding areas. Adhering to EPA standards, the researchers for this study used air toxics data collected in Garfield County from January 2008 to November 2010. A small rural community in Colorado, Garfield is poised to undergo a sharp increase in drilling activity.
The study pointed out that earlier research indicated that prolonged exposure to petroleum hydrocarbons in the air near refineries, oil spills and petrol stations pointed to “an increased risk of eye irritation and headaches, asthma symptoms, acute childhood leukemia, acute myelogenous leukemia, and multiple myeloma.”
“Our data show that it is important to include air pollution in the national dialogue on natural gas development that has focused largely on water exposures to hydraulic fracturing,” said Lisa McKenzie, Ph.D., M.P.H., lead author of the study and research associate at the Colorado School of Public Health.
The EPA is finalizing new rules to curtail air pollution at oil and gas drilling sites. A recent Bloomberg News poll suggested a majority of Americans would like to see tighter regulation of fracking.
Officials: Threat of radon high in state
www.timesleader.com/news/Officials__Threat_of_radon_high_in_state_01-31-2012.html
By NAOMI CREASON The Sentinel, Carlisle
January 31, 2012
There are a number of concerns when buying or owning a home, but the state Department of Environmental Protection is hoping homeowners pay attention to a specific odorless and radioactive gas — radon.
Bob Lewis, the program manager for DEP’s Radon Division, finds that most people don’t really think of radon, even though Pennsylvania residents should worry about the levels in their home.
“Pennsylvania could be one of the worst states in the country,” Lewis said. “There’s a handful of states that show high levels of radon, and we’re up there. I think about 49 of the 67 counties in the state are EPA zoned 1 counties. It’s just a characteristic of our geography. It’s easy for gas to migrate through the ground.”
The federal Environmental Protection Agency splits the country into three zones of radon levels, with Zone 1 being the highest and Zone 3 having the lowest levels. Pennsylvania just happens to find itself in a Zone 1 hotspot, where levels of radon are most often above the acceptable limit. Not all of Pennsylvania is Zone 1.
Radon is a gas that rises from the soil. Radon levels are low enough outside that no one really has to worry about the risk being outside. However, radon can build up in enclosed spaces, such as homes, and increase the level of indoor radon to dangerous levels.
Radon is the second leading cause of lung cancer, and the leading cause in non-smokers. Radon is expected to be the cause of 20,000 lung cancer deaths every year, according to the DEP.
“Radon affects the lungs,” Lewis said. “Because it’s a gas, you breathe it in. The particles lodge on the lining tissue in the tracheal/bronchial part of the lung, and those particles are radioactive. It gives off radioactive emissions in the lung, which affects the DNA.”
There isn’t a set exposure level of radon that means all residents will get lung cancer. Those who smoke are much more likely to get lung cancer when being additionally exposed to radon, while it could be hit-and-miss for non-smokers who live in homes with high levels of radon, especially depending on how long a person has lived in that home.
“The best possible thing you can do is test your house,” Lewis said. “It’s so easy to do. You can get a test kit that costs $25 or $30 from a home center and test your house. We generally test in the basement, so you get the worst-case scenario number. People don’t realize they could test for it. I’ve been doing this for 25 years, and that seems to be the biggest misconception.”
DEP calls for Marcellus air data
republicanherald.com/news/dep-calls-for-marcellus-air-data-1.1264911
BY ROBERT SWIFT (HARRISBURG BUREAU CHIEF rswift@timesshamrock.com)
Published: January 31, 2012
HARRISBURG – Operators of Marcellus wells, drilling rigs and compressor stations are being notified by state officials to provide air emissions data by March 1, highlighting an issue activists want more attention given in pending impact fee legislation.
A notice by the Department of Environmental Protection in the Pennsylvania Bulletin calls for operators to provide emission source reports covering 2011 for facilities involved in different phases of the Marcellus production process. The agency notified 99 firms about the requirement last month and the notice in the Jan. 28 bulletin is to cast a wider net.
The March 1 deadline is set because DEP has to provide a comprehensive inventory of air emissions to the federal Environmental Protection Agency by year’s end. This inventory is updated every three years. This will be the first time emissions data for Marcellus production and processing operations is included in the inventory, which covers everything from refineries and manufacturing plants, to dry cleaners and gas stations.
The inventory is important for maintaining air quality standards and determining ozone levels, said DEP officials. The agency plans to start long-term air monitoring studies at several sites and the emissions data will be part of that effort. DEP did not identify any emission levels that would constitute a public health concern when it did short-term air quality sampling in 2010 in the drilling regions of Bradford, Susquehanna, Tioga, Greene and Washington counties, said DEP Secretary Michael Krancer.
A Pittsburgh-based environmental group said Pennsylvania needs to do more to address the issue of Marcellus-related air emissions.
DEP should look at the combined impact of emissions from stages of Marcellus production rather than permitting each emission as a minor source of pollutants, said Lauren Burge, an attorney for Group Against Smog and Pollution.
“Many sources in this industry are located near each other, connected to each other and owned by the same company. However, because DEP considers them to be separate sources of pollutants, many of these facilities are able to avoid being permitted as major sources.
Midwest utility to shut coal-burning power plants
www.miamiherald.com/2012/01/26/2610545/midwest-utility-to-shut-coal-burning.html
By BOB DOWNING
Thursday, 01.26.12
Akron Beacon Journal
AKRON, Ohio — FirstEnergy Corp. on Thursday said it will retire six coal-fired power plants, including four in Ohio, because of stricter federal anti-pollution rules.
The six older and dirtier plants will be closed by Sept. 1.
“It was a tough decision,” said Charles D. Lasky, vice president of fossil fleet operations for FirstEnergy Generation Corp.
FirstEnergy will be among the first American utilities to close aging, polluting power plants after tighter federal clean-air rules were finalized last month.
FirstEnergy had been keeping a close eye on proposed federal rules on mercury, heavy metals and air toxics from coal-burning power plants for years, Lasky said.
The new rules provided FirstEnergy with “sufficient certainty” to proceed with the closings, he said.
The federal mandate that improvements be completed within three years was a factor in the decision to retire the six plants, which represent 12 percent of the utility’s generation capacity, he said.
The decision affects 529 workers who will be eligible for severance benefits, the Akron-based utility said.
It indicated that the number of affected workers might be less because some might be considered for other openings within the company and because of a new retirement benefit being offered to workers 55 and older.
About one-third of those 529 workers are eligible for retirement. The utility has about 100 openings in its fossil fuel division, officials said.
The plants to be closed are:
-Bay Shore Plant, Boilers 2-4, in Oregon, Ohio, outside Toledo. One boiler with anti-pollution equipment will remain open.
-Eastlake Plant with five boilers, Eastlake.
-Ashtabula Plant, Ashtabula.
-Lake Shore Plant, Cleveland.
-Armstrong Power Station, Adrian, Pa.
-R. Paul Smith Power Station, Williamsport, Md.
The Eastlake plant is the largest, capable of producing 1,233 megawatts; the Williamsport plant is the smallest at 116 megawatts.
The average age of the six plants is 55 years, Lasky said.
The closings were triggered by the U.S. Environmental Protection Agency’s new Mercury and Air Toxic Standards (MATS), which were finalized Dec. 21.
Reducing emissions of mercury, heavy metals and airborne toxics from coal-burning power plants will protect people’s health, the EPA said.
Installing anti-pollution equipment on small, old power plants was not economically feasible, FirstEnergy concluded.
Lasky declined to say how much it would have cost FirstEnergy to equip the plants with bag houses, activated carbon filters and lime or sorbent injection systems to meet the new federal rules.
FirstEnergy saw no advantage to waiting to see whether legal challenges might overturn the new rules, said Ray Evans, executive director of environmental for FirstEnergy Services.
In some cases, there is not enough land around the old plants to install anti-pollution equipment, he said.
Overexposure to radon: Second leading cause of lung cancer in the U.S.
Contact: Bonnie Smith, 215-814-5543, smith.bonnie@epa.gov
Overexposure to radon: Second leading cause of lung cancer in the U.S.
Free television, print and audio pieces available for January – Radon Action Month
PHILADELPHIA ( January 5, 2012) – The U.S. Environmental Protection Agency has declared January as Radon Action Month as part of the agency’s on-going efforts to make families aware of the health hazard presented by radon in homes.
EPA has created several free, publicly-available graphics about radon, and a public service announcement campaign for print, television, and radio at http://www.epa.gov/radon encouraging families to test their homes for radon.
EPA’s newest campaign is Living Healthy & Green.
Radon enters homes from underground. So, living healthy and green starts from the ground up. By preventing radon from entering homes, every family can have safer, healthier air to breathe.
EPA developed Living Healthy & Green to educate the public about how easy it can be to mitigate radon. Part of the campaign features former NFL kicker Fuad Reveiz, now a home builder who uses radon-resistant construction and encourages others to do the same.
The 30 second television and radio pieces are available copyright free. The campaign is available in multiple media formats and sizes for newspapers, magazines, billboards and the web in both English and Spanish. Elements can be viewed and ordered on line at www.epapsa.com/campaigns/greensox/.
Audio podcasts about radon provide interview topic ideas, see: http://www.epa.gov/region3/multimedia/frame1contents/audio_topics.html.