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PAH Levels in Runoff from Coal-Tar Sealcoated Pavement Remain Elevated for Months After Application

USGS Newsroom Technical - Fri, 02/21/2014 - 08:00
Summary: Concentrations of polycyclic aromatic hydrocarbons (PAHs) in runoff from pavement with coal-tar-based sealcoat remain elevated for months following sealcoat application, according to a new study by the U.S. Geological Survey. 

Contact Information:

Barbara Mahler ( Phone: 512-927-3566 ); Jennifer LaVista ( Phone: 303-202-4764 );



Concentrations of polycyclic aromatic hydrocarbons (PAHs) in runoff from pavement with coal-tar-based sealcoat remain elevated for months following sealcoat application, according to a new study by the U.S. Geological Survey. 

PAHs are an environmental health concern because they are toxic to fish and other aquatic life. A 2012 human health-risk analysis found that people living near pavement sealed with coal-tar-based products have an elevated risk of cancer.

USGS scientists evaluated concentrations of PAHs and azaarenes (chemicals similar in structure to PAHs but containing a nitrogen atom in the place of a carbon atom) in runoff from test plots sealed with either coal-tar-based or asphalt-based sealcoat starting five hours after sealcoat application and continuing for as long as three months after application.  The full report, published in the journal Environmental Pollution, is available online.

Concentrations of PAHs and azaarenes in runoff from the coal-tar-sealcoated pavement were about 20 times higher than in runoff from the asphalt-sealcoated pavement, and about 40 times higher than in runoff from unsealed asphalt. Concentrations and assemblages of PAHs indicated that the asphalt-based sealcoat might have contained a small amount (5-10%) of coal-tar-based sealcoat.

Although the total concentration of PAHs varied relatively little over the three months following application, the concentration of high molecular weight (large) PAHs increased and the concentration of low molecular weight (small) PAHs decreased. The low molecular weight PAHs are acutely toxic to aquatic life, but the high molecular weight PAHs are more likely to cause mutations, birth defects, and cancer. The high molecular weight PAHs in the runoff were mostly in the form of particles.

This study is the first to investigate concentrations of azaarenes associated with sealcoat runoff. Sources of azaarenes include coal-tar and oil-shale processing, wood preserving, and chemical manufacturing.  In samples of runoff collected just hours after sealcoat application, concentrations of the azaarene carbazole exceeded those of any other PAH or azaarene measured. Azaarenes have a large range of ecotoxicological effects, including acute toxicity, but have been less well studied than PAHs.

Sealcoat products are widely used in the United States, both commercially and by homeowners. The products are commonly applied to commercial parking lots (including strip malls, schools, churches and shopping centers), residential driveways, apartment complexes and playgrounds.

To learn more, visit the USGS National Water Quality Assessment Program website on PAHs and sealcoat

DuPont achieves second LEED Gold Building Certification at Wilmington area campus

DNREC News - Thu, 02/20/2014 - 17:29
WILMINGTON (Feb. 20, 2014) – DuPont today announced that a four-story, 170,000 square foot office building at its Chestnut Run Plaza facility has achieved LEED® (Leadership in Energy and Environmental Design) certification at the Gold level. This is the second Gold level LEED certification that DuPont achieved for new construction projects in the Wilmington area.

Water Infrastructure Advisory Council to meet Wednesday, Feb. 26 in Dover

DNREC News - Thu, 02/20/2014 - 17:18
DOVER (Feb. 20, 2014) – The Delaware Water Infrastructure Advisory Council (WIAC) will meet at 9 a.m. Wednesday, Feb. 26 at the Kent County Administrative Complex, 555 S. Bay Road, Dover, Conference Room 220.

Community Involvement Advisory Council to meet Monday, Feb. 24

DNREC News - Thu, 02/20/2014 - 11:36
SMYRNA (Feb. 20, 2014) – The Community Involvement Advisory Council (CIAC) will hold a meeting from 9:30 a.m. until noon, Monday, Feb. 24 at the Smyrna State Service Center Conference Room, 200 S. DuPont Highway, Smyrna, DE 19977

Media Advisory: USGS to Host Congressional Briefing: Earthquake Science and Remaining Mysteries

USGS Newsroom - Thu, 02/20/2014 - 11:20
Summary: Come learn about the great leaps in research over the last 50 years, and the research still underway to understand the remaining mysteries of earthquake hazards

Contact Information:

Jessica Robertson ( Phone: 703-648-6624 ); Kathleen Gohn ( Phone: 703-648-4242 );



@USGSLive (Twitter account) will be live-tweeting this event

It's 1964 in Alaska. Imagine 4.5 minutes of powerful ground shaking underneath you from a magnitude 9.2 earthquake. You and your loved ones are then faced with resulting landslides and a devastating tsunami. You just experienced the largest earthquake ever recorded in North America. In that moment, scientists did not know how or why it occurred.

That event marked a turning point for earthquake science. Come learn about the great leaps in research over the last 50 years, and the research still underway to understand the remaining mysteries of earthquake hazards.

It is essential to start with science, because we can't plan if we don’t know what we are planning for.

What:

The USGS and the Hazards Caucus Alliance invite you to a congressional briefing on exploring earthquakes, focusing on analysis of the past and essential science still needed to protect lives and property.

When:

 Friday, February 28, 2014
10:00 a.m.

Where:

Rayburn House Office Building
Room 2325
Washington, D.C.

Who:

David Applegate, U.S. Geological Survey
Peter Haeussler, U.S. Geological Survey
Tom Jordan, Seismological Society of America
John Schelling, Washington State Military Department's Emergency Management Division

Hosts:

American Geosciences Institute
American Geophysical Union
Geological Society of America
Seismological Society of America

RSVP:

Please send your RSVP to Jessica Robertson at jrobertson@usgs.gov if you plan to attend.

Refreshments will be provided courtesy of the Seismological Society of America.

FEMA, Arizona Host Leadership Conference to Discuss Emerging Trends in Emergency Management, Collaborate with Public, Private Sector before Next Disaster; Microsoft, Verizon, Facebook to Attend along with Many More

FEMA Press Releases - Wed, 02/19/2014 - 11:58

For Immediate Release:  February 19, 2014

Media Contact:  Mary Simms, mary.simms@fema.dhs.gov

 

FEMA, Arizona Host Leadership Conference to Discuss Emerging Trends in Emergency Management, Collaborate with Public, Private Sector before Next Disaster
Microsoft, Verizon, Facebook to Attend along with Many More

Language English
Categories: Federal News

State of Delaware and University of Delaware partner to create electric vehicle charging station network

DNREC News - Wed, 02/19/2014 - 11:57
NEWARK (Feb. 19, 2014) – Charging stations for electric vehicles will be strategically placed at key locations in Delaware to enable long trips in the state by next year, through a new collaborative research agreement between the University of Delaware (UD) and the Delaware Department of Natural Resources and Environmental Control (DNREC).

Linking U.S. and Canadian Border Waters

USGS Newsroom - Wed, 02/19/2014 - 09:00
Summary: Clearer views of waters along the U.S. and Canadian border are now possible with new seamless digital maps. These maps make it easier to solve complex water issues that require a thorough understanding of drainage systems on both sides of the International Boundary Seamless digital maps of surface waters completed along the Canada and United States International Boundary

Contact Information:

Mark Newell, APR ( Phone: 573-308-3850 ); Peter Steeves ( Phone: 508-490-5068 ); Katrina  Burke ( Phone: 703-648-5155 );



Clearer views of waters along the U.S. and Canadian border are now possible with new seamless digital maps. These maps make it easier to solve complex water issues that require a thorough understanding of drainage systems on both sides of the International Boundary.

 "In the past, cross-border maps were not always accurate, but now these new digital maps are fully linked across the entire U.S. and Canadian border," said Peter Steeves, physical scientist with the USGS. "This cooperative project allows scientists on either side to look at the water just as nature does, irrespective of the artificial line separating the two nations."

Developed cooperatively by both countries, the digital maps make tackling difficult issues more effective. For example, levels of phosphorous flowing from Lake Champlain in Vermont into Quebec can now be better understood; flooding in the Red River Valley (which flows north from Minnesota and the Dakotas into Manitoba) can be traced; salmon fisheries in the Columbia River Basin in the Pacific Northwest can be efficiently restored; and understanding localized water use and water availability all along the border is now improved.

"The USA/Canada coordinated mapping efforts along the International Border have opened doors to joint scientific analysis that rely on hydrography integration", said David Harvey, National Manager with the Environment Service of Canada. "Water quality and quantity modelling are already being developed on top of this enriched database."

The advent of Geographic Information Systems (GIS) over the past 20 years has allowed for advancements in the analysis potential of digitally mapped water features to a degree hardly imagined when the USGS started mapping in the 19th century.  As technology improves in the years to come, even more progress will be made, such as in the use of lasers to map the earth, new techniques to analyze information, and faster computers to process the data.

For more than 125 years, the USGS has provided accurate maps of the nation's surface waters. During the last two decades this mapping has become digital, using computers and new technologies to provide unprecedented knowledge of water resources. This data is stored in the National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD).

The principle agencies involved in this effort are the USGS and Natural Resources Canada (NRCan), with oversight by the International Joint Commission (IJC).  The U.S. Environmental Protection Agency, Agricultural Foods Canada, Environment Canada along with many provincial and in-state partners participated throughout the process.  

Additional information on the NHD and WBD can be found at http://nhd.usgs.gov/.

Digital Surface Watersheds along the U.S. and Candian International Boundary.  (Larger image) U.S. and Canadian harmonized international sub-basins displaying Canadian 5-digit and U.S. 8-digit hydrologic unit codes; now available within the Watershed Boundary Dataset.  (Larger image, 6.7 MB)

FEMA Awards $1.1 Million to Arkansas for 2012 Christmas Day Storm

FEMA Press Releases - Tue, 02/18/2014 - 12:52

DENTON, Texas – More than $1.1 million is being awarded to the state of Arkansas by the Federal Emergency Management Agency (FEMA) to reimburse Saline County for debris removal costs from a 2012 Christmas Day winter storm.

Language English
Categories: Federal News

FEMA Seeks Applicants for National Advisory Council

FEMA Press Releases - Tue, 02/18/2014 - 12:18

WASHINGTON – The U.S. Department of Homeland Security’s Federal Emergency Management Agency (FEMA) is requesting individuals who are interested in serving on the National Advisory Council (NAC) to apply for appointment.  The NAC is an advisory council established to ensure effective and ongoing coordination of federal preparedness, protection, response, recovery, and mitigation for natural disasters, acts of terrorism, and other man-made disasters.

Language English
Categories: Federal News

DNREC Fish and Wildlife Enforcement Blotter Feb. 4 to 10

DNREC News - Tue, 02/18/2014 - 10:45
DOVER (Feb. 14, 2014) – To achieve public compliance through education and enforcement actions that help conserve Delaware’s fish and wildlife resources and ensure safe boating and public safety, DNREC Natural Resources Police, Division of Fish and Wildlife Enforcement Agents between Feb. 4-10 made 400 contacts with anglers, hunters, boaters and the general public, including 14 vessel boardings for boating safety, hunting and fishing regulation compliance checks. Agents responded issued 24 citations.

More volunteers needed for beach grass planting at Delaware Seashore State Park on March 22

DNREC News - Mon, 02/17/2014 - 10:58
SUSSEX COUNTY (Feb. 17, 2014) – More volunteers are needed at Delaware Seashore State Park for Delaware’s annual beach grass planting event set for 9 a.m. to noon on Saturday, March 22. The event, now in its 25th year, helps protect Delaware shorelines by planting Cape American beach grass on sand dunes at beaches along the Delaware Bay and Atlantic Ocean.

DNREC Division of Fish and Wildlife announces spring 2014 trout stocking plans for downstate ponds

DNREC News - Fri, 02/14/2014 - 17:19
DOVER (Feb. 14, 2014) – The DNREC Division of Fish and Wildlife today announced that its spring 2014 downstate trout season will begin Saturday, March 1 with the opening of two downstate ponds stocked with rainbow trout. On that date, Tidbury Pond near Dover in Kent County and Newton Pond outside of Greenwood in Sussex County will open for trout fishing beginning at 7 a.m.

New York University, NYU Langone Medical Center, SUS-Mental Health receive FEMA grants

FEMA Press Releases - Fri, 02/14/2014 - 13:56

NEW YORK – The Federal Emergency Management Agency has approved Public Assistance grants to New York University, NYU Langone Medical Center and Services for the UnderServed (SUS)-Mental Health Program to reimburse costs for damage caused by Hurricane Sandy.

New York University has been awarded more than $1 million in funding. The grant covered a variety of needs including ensuring students’ safety, protection of campus data, temporary generators and a fuel oil tank.

Language English
Categories: Federal News

$2.4 billion in FEMA Public Assistance grants for Hurricane Sandy recovery

FEMA Press Releases - Fri, 02/14/2014 - 13:48

NEW YORK — Since Hurricane Sandy struck New York, the Federal Emergency Management Agency has approved more than $2.4 billion in Public Assistance grants to reimburse local, state and tribal governments and eligible private nonprofits for costs associated with emergency response, debris removal and repairing or rebuilding public facilities.

Recently approved grants include:

Language English
Categories: Federal News

FEMA supports recovery efforts in Evans

FEMA Press Releases - Fri, 02/14/2014 - 10:53

DENVER – Since the September 2013 floods, the Federal Emergency Management Agency has provided nearly $6.6 million in Individual Assistance to Evans residents and obligated more than $1.4 million in Public Assistance to the City of Evans. At the same time, the U.S. Small Business Administration has provided more than $3.6 million in low-interest loans to 46 Evans homeowners and nine business owners.

As a part of its outreach to the citizens of Evans, FEMA Individual Assistance has provided:

Language English
Categories: Federal News

Delawares 2013 to 2014 deer harvest ranks third all time

DNREC News - Fri, 02/14/2014 - 10:27
DOVER (Feb. 14, 2014) – Delaware hunters harvested 14,263 deer during the 2013-‘14 season, a 7.2 percent increase from the previous season’s 13,302, DNREC’s Division of Fish and Wildlife announced today. The 2013-‘14 deer harvest ranks as the third all-time highest deer harvest for Delaware.

FEMA Federal Regional Center Marks 50 Years of History

FEMA Press Releases - Fri, 02/14/2014 - 10:22

    

DENTON, Texas –Valentine’s Day, Feb. 14 marks the 50th anniversary of what began as an underground facility designed to survive a nuclear war and provide for the continuity of U.S. government operations. The Federal Regional Center (FRC) was constructed between 1961 and late 1963 on 20 acres in Denton.

Language English
Categories: Federal News

FEMA Awards $351,066 Grant to Villa Grove: Hazard mitigation funds will be used to acquire and demolish nine flood prone structures

FEMA Press Releases - Thu, 02/13/2014 - 14:20

CHICAGO -- The U.S. Department of Homeland Security’s Federal Emergency Management Agency (FEMA) has released $351,066 in Hazard Mitigation Grant Program (HMGP) funds to Villa Grove, Ill., for the acquisition and demolition of eight residential structures and one public building located in the floodplains of the West Ditch and Embarras River. <?xml:namespace prefix = o />

 

Language English
Categories: Federal News

Car Preparedness Critical During Winter Months

FEMA Press Releases - Thu, 02/13/2014 - 13:18

LINCROFT, N.J. – The recent winter storm in Atlanta wreaked havoc on traffic and left motorists and vehicles stranded on the city’s highways for days. Many people were forced to stay in their cars overnight, while others abandoned their vehicles to escape the gridlock.

Language English
Categories: Federal News