Navigation Links
UNH: Pavement sealcoat a source of toxins in stormwater runoff
Date:4/8/2009

DURHAM, N.H. Driveways and parking lots may look better with a layer of sealcoat applied to the pavement, but the water running off the surface into nearby streams will be carrying more than just oxygen and hydrogen molecules. New research conducted at the University of New Hampshire Stormwater Center (UNHSC) indicates that sealcoat may contribute to increasingly significant amounts of polyaromatic hydrocarbons entering waterways from stormwater runoff.

Polyaromatic hydrocarbons, more commonly known as PAHs, are found in diesel and crude oil and are considered to be carcinogenic. Although small amounts of PAHs are typically found in the waters around the New Hampshire Seacoast, the sudden spike in the hydrocarbon concentrations in water draining from a university parking lot used for research caused Tom Ballestero, UNH associate professor of civil engineering, to be concerned about unknown impacts.

"Our society has been sealcoating pavement for decades and there are things we've never asked about," he says. "Now we're starting to probe and ask these questions."

Although it is intended to remain on the pavement surface, much of the sealcoat eventually washes or scrapes off and ends up in nearby streams and rivers, says Alison Watts, affiliate faculty member at the UNHSC. The PAHs from the sealcoat attach to organic matter, such as leaves or sediment, where they may be ingested by organisms or buried in other sediments.

As part of this N.H. Sea Grant-funded research, one-quarter acre of a parking lot located near the UNHSC was covered with coal tar-based sealcoat and one-third acre was covered with asphalt-based sealcoat. The remainder of the nine-acre lot was left unsealed. On-site stormwater drains off the parking lot and into a nearby swale. The PAH concentration was measured in the water and sediments coming from the sealcoated and unsealed parking lot sections.

Both types of sealcoat led to a surprisingly r
'/>"/>

Contact: Rebecca Zeiber
rebecca.zeiber@unh.edu
603-749-1565
University of New Hampshire
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Source of major health benefits in olive oil revealed
2. Amniotic fluid may provide new source of stem cells for future therapies
3. Transport behavior of E. coli varies depending on manure source
4. Dana-Farber oncologists present at ASCO GU -- predict prostate cancer survival using Source MDx test
5. New open-source software permits faster desktop computer simulations of molecular motion
6. Newly described contaminant sources in Katrina-flooded homes pose health risks
7. TXOTX, coordinated international project to contribute to sustainability of the marine resources
8. First Science from the Compact Light Source: A miniature synchrotron for your home lab
9. First images from medical beamline at Canadian Light Source
10. First-ever socioeconomic study on coral reefs points to challenges of coastal resource management
11. Montana State researchers receive grant to study algae as a source of biofuel
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UNH: Pavement sealcoat a source of toxins in stormwater runoff
(Date:7/29/2014)... parents of preterm babies latest research from the ... become teenagers, the brains of many preterm children can perform ... study conducted by the University,s Robinson Research Institute ... no brain injury in early life, their cognitive abilities as ... peers. , However, the results of the study, published in ...
(Date:7/28/2014)... approved by the U.S. Food and Drug Administration (FDA) ... certain bacterial pathogens inside human cells, including those that ... findings, published in mBio , the online open-access ... new way of identifying non-antibiotic drugs that could one ... of drugs on the list inhibit the growth of ...
(Date:7/28/2014)... Ariz. - Reactions among minerals and organic compounds in ... carbon cycle, they provide energy for the deep biosphere, ... However, very little is known about how minerals influence ... State University have demonstrated how a common mineral acts ... negating the need for toxic solvents or expensive reagents. ...
Breaking Biology News(10 mins):Preterm children's brains can catch up years later 2New route to identify drugs that can fight bacterial infections 2Mineral magic? Common mineral capable of making and breaking bonds 2Mineral magic? Common mineral capable of making and breaking bonds 3
... for Research in Vision and Ophthalmology (ARVO) is pleased ... recipients will be acknowledged at the ARVO 2012 Annual ... Proctor Medal: Peter Sterling, PhD, Mildred Weisenfeld Award ... FARVO, Cogan Award: Jeffrey L. Goldberg, MD, PhD, Friedenwald ...
... AMHERST, Mass. A team of kinesiology researchers led ... Amherst recently received a 2.5-year, $975,000 grant through the ... to study how the average 100-lb. equipment load carried ... missions, affects their survivability, likelihood of injury and ability ...
... Md. - The first Maryland municipality to earn a ... is the Town of Berlin on the Eastern Shore. ... by the University of Maryland,s Environmental Finance Center - ... as well as revitalize and improve their long-term quality ...
Cached Biology News:2012 ARVO Award recipients honored at annual meeting 2Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers 2Maryland gets its first 'Certified Sustainable' community: Berlin 2
(Date:7/30/2014)... 2014 LayerBio, Inc., an MIT spinoff ... first round of seed financing from friends and family ... to develop a novel sustained-release product for ophthalmology. , ... and their commitment to this important work," said Dr. ... one of many areas in which innovations in drug ...
(Date:7/29/2014)... technologists have hurdled a number of significant technological ... revolutionary observing technology originally created for the James ... Principal Investigator Harvey Moseley, a scientist at NASA,s ... demonstrated that electrostatically actuated microshutter arrays that ... are as functional as the current technology,s ...
(Date:7/29/2014)... 2014 Human Longevity, Inc. (HLI), a genomics ... extending the healthy, high performance human life span, today ... an expert in machine learning and machine translation as ... from Google where he was Distinguished Research Scientist and ... to HLI Co-Founder and CEO, J. Craig Venter ...
(Date:7/29/2014)... a new way of manufacturing microstructured surfaces that ... self-assembly of carbon nanotubes, could exhibit a variety ... and strength, or the ability to repel water ... that mechanical forces can be used to direct ... we can independently control the mechanical properties ...
Breaking Biology Technology:Revolutionary microshutter technology hurdles significant challenges 2Revolutionary microshutter technology hurdles significant challenges 3Revolutionary microshutter technology hurdles significant challenges 4Franz Och, Ph.D., Expert in Machine Learning and Machine Translation, Joins Human Longevity, Inc. as Chief Data Scientist 2Franz Och, Ph.D., Expert in Machine Learning and Machine Translation, Joins Human Longevity, Inc. as Chief Data Scientist 3A new way to make microstructured surfaces 2
... WuXi PharmaTech (NYSE:,WX), a leading pharmaceutical, biotechnology and ... in China and the United,States, today announced that ... Vice,President of Strategy., (Logo: http://www.newscom.com/cgi-bin/prnh/20040705/CNM002LOGO ... Yu worked at Pfizer Inc., where,she co-led Pfizer,s ...
... Archi-Tech Systems, a,leading provider of pharmaceutical ... PromoTrack, a new solution custom-designed to,rapidly measure ... promotions. Archi-Tech has tailored its proven DART ... marketers, seamlessly,integrating disparate promotional campaign and Rx ...
... Inc.,(TSX: SDI) today announced that it has entered ... Medical for Spectral,s Endotoxin,Activity Assay (EAA(TM)), the only ... the terms of the agreement, BB Medical will ... "BB Medical is a leading distributor of medical ...
Cached Biology Technology:WuXi PharmaTech (NYSE: WX) Appoints Dr. Debra Yu as VP of Strategy 2Pharmaceutical Marketing Done Right: Archi-Tech Systems Unveils Version of Proven Analytics Solution for Campaign Management 2Spectral announces exclusive distribution agreement in Russia for its EAA(TM) Sepsis Diagnostic Assay 2
Recombinant DNA polymerase from Thermus aquaticus expressed in E. coli; 5 units/L; 1 tube of 1, 000 units enzyme/tube w/Buffer II and MgCl2...
... GCpro Taq DNA Polymerase is a versatile ... for all PCR applications. GCpro Taq DNA ... expressed in E. coli, containing the DNA ... enzyme includes a highly processive 5'-3' DNA ...
Ps-Aeruginosa (IgG) -Ab EIA Sample Size: 100 l...
...
Biology Products: