Navigation Links
Pitt research suggests EPA pesticide exposure test too short, overlooks long term effects
Date:8/17/2009

within 200 meters. The EPA estimates that surface drinking water can have chronic endosulfan levels of 0.5 to 1.5 ppb and acute concentrations of 4.5 to 23.9 ppb.

Leopard frogs, spring peepers, and American toads fared well during the experiment's first four days, but once they were in clean water, the death rate spiked for animals previously exposed to 35 and 60 ppb. Although the other six species did not experience the lag effect, the initial doses of endosulfan were still devastating at very low concentrations. Grey and Pacific tree frogs, Western toads, and Cascades frogs began dying in large numbers from doses as low as 7 ppb, while the same amount killed all green frog and bullfrog tadpoles.

The endosulfan findings build on a 10-year effort by Relyea to understand the potential links between the global decline in amphibians, routine pesticide use, and the possible threat to humans in the future.

A second paper by Relyea and Jones also in the current Environmental Toxicology and Chemistry expands on one of Relyea's most notable investigations, a series of findings published in Ecological Applications in 2005 indicating that the popular weed-killer Roundup is "extremely lethal" to amphibians in concentrations found in the environment. The latest work determined the toxicity of Roundup Original Max for a wider group of larval amphibians, including nine frog and toad species and four salamander species. The report is available on Pitt's Web site at www.pitt.edu/news2009/Roundup.pdf

In November 2008, Relyea reported in Oecologia that the world's 10 most popular pesticideswhich have been detected in naturecombine to create "cocktails of contaminants" that can destroy amphibian populations, even if the concentration of each individual chemical is within levels considered safe to humans and animals. The mixture killed 99 percent of leopard frog tadpoles and endosu
'/>"/>

Contact: Morgan Kelly
mekelly@pitt.edu
412-624-4356
University of Pittsburgh
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Research shows skeleton to be endocrine organ
2. Newly created cancer stem cells could aid breast cancer research
3. Dominant cholesterol-metabolism ideas challenged by new research
4. Researchers identify proteins involved in new neurodegenerative syndrome
5. Texas researchers and educators head for Antarctica
6. MGH researchers describe new way to identify, evolve novel enzymes
7. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
8. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
9. U of MN researchers discover noninvasive diagnostic tool for brain diseases
10. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
11. Story ideas from the Journal of Lipid Research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/21/2015)... -- The Sync Project™ , a global collaboration ... announced a collaborative partnership with Berklee,s Institute for ... collaboration on original research, joint course development and an ... The Sync Project and BerkleeICE are exploring the launch ... 2015-2016 academic year.  The course will ...
(Date:5/19/2015)... NEW YORK , May 19, 2015  Technology ... resources both internally and in the cloud. Passwords and ... the use of OTP and standards-based specifications such as ... that the outmoded use of passwords presents for BYOD, ... needs a unified biometric identity protocol. ...
(Date:5/14/2015)... YORK , May 14, 2015 /PRNewswire/ ... in identity verification and online remote proctoring, ... a software-as-a-service (SaaS) company and creator of ... customers of the two companies will benefit ... in Canvas. As a fully ...
Breaking Biology News(10 mins):The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 2The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 3HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 2HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 3Verificient and Instructure Announce Alliance Partnership to Provide Online Proctoring for K-12 and Higher Education Institutions 2
... PHILADELPHIA Obesity and aversion to exercise have become hallmarks ... a blood protein linked to these lifestyle factors may be ... Researchers from the Dana Farber Cancer Institute report their findings ... of the American Association for Cancer Research. In ...
... since anyone has journeyed to this section of Antarcticas Amundsen ... five UTSA researchers and a Boerne High School science teacher ... to set sail on a two month expedition. ... research grant to UTSA, is designed to study the relationship ...
... new insight into the pathology underlying a recently ... is caused by alterations in the same gene ... syndrome (FXTAS) overwhelmingly affects males, usually in their ... contrast, fragile X syndrome manifests itself from birth ...
Cached Biology News:Obesity and lack of exercise could enhance the risk of pancreatic cancer 2Texas researchers and educators head for Antarctica 2Deep into the machinery of adult fragile X 2Deep into the machinery of adult fragile X 3
(Date:5/21/2015)... As part of its philanthropic partnership ... Health Foundation funded a $3.25 million project to relocate ... the most up-to-date features and technology. , The new ... 45 staff members will begin moving from the current ... coming days. , The current pharmacy has been ...
(Date:5/20/2015)... FRANCISCO, Calif. , May 20, 2015 /PRNewswire/ ... ) today presented preliminary data demonstrating the ability ... idiopathic pulmonary fibrosis (IPF) from other interstitial lung ... findings suggest the classifier,s potential to help thousands ... to resolve ambiguity in IPF diagnosis – a ...
(Date:5/20/2015)... 2015 The global genotyping market is ... the forecast period of 2015 to 2020 to reach ... in drug discovery and development process and to provide ... addition to this,heavy investments by key manufacturers to offer ... propelling market growth. Browse 113 market data tables & ...
(Date:5/20/2015)... 20, 2015  Cypher Genomics, Inc., a leading ... Celgene Corporation to apply Cypher,s Coral TM ... with patient response to innovative medicines. The information ... accelerate patient access to the right medicine at ... and development and potentially inform new companion diagnostics.  ...
Breaking Biology Technology:Sun Health Foundation Provides $3.25M to Expand, Relocate Banner Del E. Webb Medical Center Pharmacy 2Sun Health Foundation Provides $3.25M to Expand, Relocate Banner Del E. Webb Medical Center Pharmacy 3Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 2Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 3Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 4Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 5Genotyping Market Growing at 22.3% CAGR to 2020: Research Based on Technology, Applications, Opportunities, Challenges and Key Players. 2Genotyping Market Growing at 22.3% CAGR to 2020: Research Based on Technology, Applications, Opportunities, Challenges and Key Players. 3Genotyping Market Growing at 22.3% CAGR to 2020: Research Based on Technology, Applications, Opportunities, Challenges and Key Players. 4Genotyping Market Growing at 22.3% CAGR to 2020: Research Based on Technology, Applications, Opportunities, Challenges and Key Players. 5Cypher Genomics Collaborates with Celgene Corporation to Identify Novel Genomic Biomarkers 2
... CHENGDU, China, July 8 /PRNewswire-Asia-FirstCall/ -- Tianyin,Pharmaceutical Co., ... supplier of,modernized traditional Chinese medicine ("TCM") based in Chengdu, China, ... common stock shareholders.,The dividend of $0.025 will be paid to ... distribution occurring on or about September 10, 2009. , ...
... SAN FRANCISCO, Calif. and BOSTON, July 8 iZumi ... merged to form a new company, iPierian, Inc. Building ... focused on the application of cellular reprogramming to change ... the company will accelerate the development of new therapeutics ...
... INDIANAPOLIS and CAMBRIDGE, Mass., July 7 Amylin ... Company (NYSE: LLY ) and Alkermes, Inc. (Nasdaq: ... Application (NDA) for exenatide once weekly has been accepted for ... , Exenatide once weekly is an investigational sustained release ...
Cached Biology Technology:Tianyin Pharmaceutical Co., Inc. Announces Cash Dividend to Common Stockholders 2iZumi Bio and Pierian Merge to Form iPierian to Advance Cellular Reprogramming 2iZumi Bio and Pierian Merge to Form iPierian to Advance Cellular Reprogramming 3iZumi Bio and Pierian Merge to Form iPierian to Advance Cellular Reprogramming 4iZumi Bio and Pierian Merge to Form iPierian to Advance Cellular Reprogramming 5iZumi Bio and Pierian Merge to Form iPierian to Advance Cellular Reprogramming 6New Drug Application for Exenatide Once Weekly Accepted for Review by FDA 2New Drug Application for Exenatide Once Weekly Accepted for Review by FDA 3New Drug Application for Exenatide Once Weekly Accepted for Review by FDA 4New Drug Application for Exenatide Once Weekly Accepted for Review by FDA 5New Drug Application for Exenatide Once Weekly Accepted for Review by FDA 6
PC12 (rat phaeochromocytoma) cells Source: Cell Lysate Form: Ready to Use Application: Western Blotting Control...
... Gene Construction KitTM allows graphic manipulation of ... It has an award winning interface design ... in addition to providing sophisticated drawing capabilities ... named the "Best Plasmid Mapping Software" by ...
... ISO 9001:2000 Certified USDA Research Registered OLAW ... Training AALAS Certified Technicians ... GLP Documentation Upon Request Focus ... for all your custom immunology service needs. ...
...
Biology Products: