Navigation Links
Storm runoff and sewage treatment outflow contaminated with household pesticides
Date:2/2/2010

Pyrethroids, among the most widely-used home pesticides, are winding up in California rivers at levels toxic to some stream-dwellers, possibly endangering the food supply of fish and other aquatic animals, according to a new study by researchers at the University of California, Berkeley, and Southern Illinois University (SIU).

Pyrethroid insecticides, commonly used in California to kill ants and other insect pests around the home, have been found in street runoff and in the outflow from sewage treatment plants in the Sacramento area. The insecticide ended up in two urban creeks, the San Joaquin River and a 20-mile stretch of the American River, traditionally considered to be one of the cleanest rivers in the region.

Although the pyrethroid levels were low around 10-20 parts per trillion they were high enough to kill a test organism similar to a small shrimp that is used to assess water safety.

"These indicator organisms are 'lab rat' species that are very sensitive, but if you find something that is toxic to them, it should be a red flag that there could be potential toxicity to resident organisms in the stream," said study leader Donald P. Weston, UC Berkeley adjunct professor of integrative biology.

Fish would not be affected by such low levels, Weston said, but aquatic larvae that the fish eat, such as the larvae of mayflies, stoneflies and caddisflies, could be, and should be studied.

Weston first began looking at pyrethroid levels in streams bordering farm fields in 2004, and reported levels in some creek sediments high enough to kill the shrimp-like amphipod, an organism used by the U.S. Environmental Protection Agency as an indicator of the health of freshwater sediment. He subsequently found even higher pyrethroid levels in the sediments of urban streams, contributing to the California Department of Pesticide Regulation's decision in August 2006 to re-evaluate some 600 pyrethroid products on the market, a p
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Green roofs offer energy savings, storm-water control
2. Research forecasts increased chances for stormy weather
3. NASA-enhanced dust storm predictions to aid health community
4. Small satellite takes on large thunderstorms
5. Geoscientists discuss sea level rise, extreme storm events and more
6. UNH: Pavement sealcoat a source of toxins in stormwater runoff
7. Coral face a stormy future
8. New Iowa State supercomputer, Cystorm, unleashes 28.16 trillion calculations per second
9. Canna can: Ornamental eliminates pollutants from stormwater runoff
10. Dirty snow causes early runoff in Cascades, Rockies
11. Nicotinic receptors may be important targets for treatment of multiple addictions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... ANTONIO, September 18, 2014 New research into the ... causes a severe hemorrhagic disease in humans similar to ... essential for CCHFV infection. This discovery has the potential ... the pathogen. , The research, reported in ... Pathogens and conducted by scientists at the Texas ...
(Date:9/18/2014)... researchers from McGill University and the Quebec government ... ,microbeads, Canadian Journal of Fisheries and Aquatic ... cosmetics, household cleansers, or industrial cleansers, to which ... their small size and buoyancy, they may readily ... a global contaminant in the world,s oceans, but ...
(Date:9/18/2014)... how many times it,s demonstrated, it,s still hard ... , But by using a signaling system called ... behavior to suit their population. In short, some ... and act accordingly. , Once the population of ... from innocuous to pathogenic, or from unhelpful to ...
Breaking Biology News(10 mins):Research milestone in CCHF virus could help identify new treatments 2Microplastic pollution discovered in St. Lawrence River sediments 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 3
... nannies help out, especially if they,ve been sneaking ... displays cooperative breeding behavior, where non-parents contribute to ... now, it was assumed that male subordinates never gained ... 12, in the online journal PLoS ONE , ...
... , This release is available in French ... Concordia University professors have received new funding to advance research ... of a peer committee, Canada Research Chairs were awarded to ... The announcement was made at Concordia in the ...
... of investigators from the University of Utah has received a ... to fund novel research that may help to uncover a ... multiple sclerosis. These studies will use an advanced technology called ... of primary progressive multiple sclerosis. Multiple sclerosis (MS), which ...
Cached Biology News:Recognition for 7 Concordia professors 2NIH grant will allow researchers to look for viral cause of most severe form of multiple sclerosis 2
(Date:9/18/2014)... September 18, 2014 ... http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has announced the addition ... Global Strategic Business Report" report ... ,This report analyzes the worldwide markets ... by the following Product Segments: Polymeric ...
(Date:9/18/2014)... Washington, D.C. (PRWEB) September 18, 2014 ... Dick Durbin and Sen. Jim Risch for National Lab ... research projects from across the national laboratory system. Durbin ... Caucus, which aims to increase awareness of the reach ... breakthrough technologies and discoveries to address some of our ...
(Date:9/18/2014)... 2014 Research and Markets ... N-acetylcysteine Industry Report 2014" report to their ... Report 2014 is a professional and in-depth study ... industry. The report provides a basic ... and industry chain structure. The N-acetylcysteine market analysis ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, ... report to their offering. The global ... CAGR of 22.7% from 2014 to 2019. Factors such ... growing adoption of companion diagnostics by the pharmaceutical industry, ...
Breaking Biology Technology:Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3Global N-acetylcysteine Industry Report 2014 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3
... Skills Related to Nutrition Care in Mosby,s ... Organization Elsevier/MC Strategies , a pioneer ... organizations announced today its collaboration with the American ... review and amend the nutrition-related skills in Mosby,s Nursing ...
... design, University at Buffalo chemists have synthesized tiny, molecular ... nanomaterials. , Sculpted from a special kind of molecule ... organic tubes whose interior walls carry a negative charge. ... positively charged particles. , In addition, because UB scientists ...
... Levi & Korsinsky is investigating potential claims on behalf ... California, Inc. ("PacBio" or the "Company") (NASDAQ: ... For more information, click here: http://zlk.9nl.com/pacific-biosciences-california-pacb/ ... that the Company failed to disclose the following: (a) ...
Cached Biology Technology:Elsevier Collaborates with the American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.) 2Elsevier Collaborates with the American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.) 3Chemists become molecular sculptors, synthesizing tiny, molecular traps 2Chemists become molecular sculptors, synthesizing tiny, molecular traps 3The Law Firm of Levi & Korsinsky, LLP Launches an Investigation Into Possible Securities Laws Violations by Pacific Biosciences of California, Inc. 2
...
... Perkin Elmer UltraVIEW system and want to enjoy ... iQ software? No problem. Our experienced team ... existing microscope, lasers, Sutter filter wheel, Piezo Stage ... with our precision controller unit and workstation... for ...
... The DNA Engine Dyad instrument is ... Featuring MJ's world-class thermal performance, ... color display, as well as point-and-click navigation ... The Dyad can be easily and economically ...
...
Biology Products: