Navigation Links
UH team analyzes Hurricane Ike's effects on waterways, fish contamination
Date:7/8/2009

th ways to address the problem," Rifai said. "For the first few years, we looked at dioxins, and now we're also looking at PCBs in every body of water in the Houston metro area, all the way to upper Galveston Bay. We're focused on past and current industrial pollutants."

Dioxins are primarily byproducts resulting from paper mills, industrial waste incineration and water purification processes, but they also result from natural sources like forest fires in much smaller quantities. Rifai said her team believes the majority of dioxins found locally today are from historical sources.

Meanwhile, PCBs, whose manufacture was banned in 1979, long were used as coolants and lubricants in electrical transformers and capacitors. Why they persist today in local waterways and seafood remains something of a mystery, Rifai said.

"Now, what we find with the PCBs, and what's got people worried, is, if indeed it's historical from before the ban, you would see it in the sediment," she explained. "But, we're actually seeing the patterns have shifted, as if there are some new sources of PCBs. Since the 1990s, we've had so much growth and industrial activity kicking back up that there might be some new material coming in."

What those new sources are remains unclear, Rifai said, and materials that were manufactured with PCBs before the ban may still be in use.

"Historically with PCBs, if you've made a million transformers, you didn't have to destroy them. You use them up till they die," she said, adding that many outdated transformers were ruined by Hurricane Ike.

In July 2008, the Texas Department of State Health Services issued an advisory for Galveston Bay, Chocolate Bay, East Bay, West Bay, Trinity Bay and contiguous waters, saying consumers should limit intake of spotted seatrout, also known as speckled trout, and gafttop catfish to no more than one 8-ounce meal a month. Furthermore, children, women who are nursing, pregnant or who
'/>"/>

Contact: Angela Hopp
ahopp@uh.edu
713-743-8153
University of Houston
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Soil, conservation experts to reflect on Hurricane Katrina disaster
2. Climates remote control on hurricanes
3. 2007 hurricane forecasts took blow from winds and Saharan dry, dusty air
4. Hurricane Gustav
5. Hurricane Ike tracked by ESAs Envisat
6. APS sets aside $50,000 to help students, post-docs, in wake of Hurricane Ike
7. Dune and dirty: Hurricane teaches lessons through ecosystem research
8. Pediatric carbon monoxide poisoning linked to video games after Hurricane Ike
9. Hurricane Katrina: Phone home
10. Brain cell growth diminishes long before old age strikes, animal study shows
11. Stopping autoimmunity before it strikes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... The Defense Logistics Agency is insourcing its efforts ... microcircuits from entering into its supply chain. ... initiative dubbed DNA marking. The capability will validate the ... the supply chain. The new quality control measures will ...
(Date:12/17/2014)... RALEIGH, N.C. , Dec. 16, 2014 Valencell, ... licensed its PerformTek biometric technology to industry leaders such ... highly accurate, clinically validated, biometric wearable products. These products ... 6-9 in Las Vegas . ...
(Date:12/17/2014)... , Dec. 16, 2014  Automation is fundamentally transforming ... than at international borders. Over the past decade, ePassports, ... travelers to self process through border control via eGates ... number of airports, seaports, and land borders across the ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... Panel of the American Association of Feline Practitioners ... feline patients based on risk assessment., From ... (2013) The American Association of Feline Practitioners, ... released updated guidelines on appropriate feline vaccination schedules ...
... process. Identification of important areas and species with ... objectives. China is one of mega-biodiversity countries of ... environmental degeneration, native and endemic species of China ... decades. It is an urgent agenda to set ...
... JPMorgan Chase & Co. (NYSE: JPM) and the Bill ... allow individual and institutional investors the opportunity to finance ... save millions of lives in low-income countries. ... investors including anchor support from Grand Challenges Canada ...
Cached Biology News:Appropriate vaccinations schedules for feline patients outlined 2Richness mapping and prediction of amphibians in Southern and Central China 2New investment fund will advance late-stage vaccines, other global health technologies 2New investment fund will advance late-stage vaccines, other global health technologies 3New investment fund will advance late-stage vaccines, other global health technologies 4
(Date:1/22/2015)... GEA Niro Soavi the leader in ... the PandaPLUS 2000, which is ideal for new applications ... cell disruption . This compact laboratory homogenizer is the ... food, food additives and ingredients as well as for ...
(Date:1/22/2015)... OH (PRWEB) January 22, 2015 Crystal Diagnostics ... today that it has received AOAC-PTM Certifications for the six ... O121, and O145; collectively referred to as STEC or the ... 1 colony forming unit (cfu) per 325 g of raw ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Selexis SA, ... mammalian Research Cell Banks (RCBs) used for drug discovery ... Cell Banks will include Next-Generation Sequencing (NGS) ... architecture de-risks biologic manufacturing by ensuring the integrity of ...
(Date:1/22/2015)... CAMBRIDGE, Mass. , Jan. 22, 2015   GenoSpace , ... suite of tools to enable the broad use of genomic, ... today announced the appointment of Michelle Munson , CEO ... independent director. Logo - http://photos.prnewswire.com/prnh/20150122/170713 ...
Breaking Biology Technology:GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 2Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2GenoSpace Expands Board with Appointment of Michelle Munson 2
... NV,(Euronext Brussels: THR), a biotechnology company focused on ... is today issuing a,business update for the nine ... De Haes, CEO of ThromboGenics, commenting on today,s,announcement, ... anticipated. We are now working hard to prepare ...
... 6 AmeriCares has,awarded its annual "Power ... global biotechnology, medical device and specialty pharmaceutical,company. ... Distribution,Management Association,s (HDMA) Annual Leadership Forum in ... award was created by AmeriCares and HDMA ...
... Calif., Nov. 6 ( http://www.amdl.com ),AMDL, Inc. ... with major operations in China and the U.S., ... Douglas MacLellan will present at,Rodman & Renshaw,s Annual ... 2008 at the New York Palace Hotel in ...
Cached Biology Technology:ThromboGenics N.V.: Business Update 2ThromboGenics N.V.: Business Update 3ThromboGenics N.V.: Business Update 4ThromboGenics N.V.: Business Update 5ThromboGenics N.V.: Business Update 6ThromboGenics N.V.: Business Update 7ThromboGenics N.V.: Business Update 8AmeriCares Presents 'Power of Partnership' Award to Baxter 2AmeriCares Presents 'Power of Partnership' Award to Baxter 3AMDL, Inc. New President & CEO Douglas MacLellan to Present at Rodman & Renshaw Annual Global Investment Conference November 12, 2008 2
... The new Finnigan Pocket Surveyor software ... and existing Finnigan Surveyor HPLC Systems. ... computer running the popular Windows Pocket ... the ability to connect directly to ...
... separation and fractionation of nucleic-acid ... nuclei from cytosolic proteins A ... greatly facilitating study of low-abundance ... acid binding proteins (e.g., transcription ...
... solution is an isotonic, balanced salt solution. It ... permits the storage of whole blood at refrigerator ... equal volume of blood is collected into a ... mixed. The solution is placed in a refrigerator ...
... Hollandes is a fixative useful for ... fixation. It is stable and will decalcify ... with Hollande's can be stained successfully with ... the solution stabilizes red blood cell membranes ...
Biology Products: