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:7/23/2014)... risk warning for Yellowknife and surrounding area because of ... In the image taken by the Aqua satellite, ... Fire is an obvious health hazard, but the ... obvious and its effects are insidious. , The smoke ... structure, tires, waste or wood burning) is a mixture ...
(Date:7/23/2014)... Roughly 780 million people around the world have no ... Health Organization (WHO), 3.4 million people die from water-related ... the goal of making a contribution to solving this ... Wendelin Stark, head of the Functional Materials Laboratory, the ... developing a prototype. , "What makes our DrinkPure filter ...
(Date:7/23/2014)... Worldwide Innovative Networking in personalized cancer medicine, (the WIN ... at Thomas Jefferson University will be one ... of this prestigious group in the Tri-State Area. The ... innovative personalized medicine to the patient by forging collaborations ... "Our participation in the WIN consortium means Jefferson cancer ...
Breaking Biology News(10 mins):ETH student develops filter for clean water around the world 2New partnership brings more personalized cancer treatment to Philadelphia 2
... engineers and sleep medicine specialists from two Michigan ... put innovative quantitative analysis, signal-processing technology and computer ... One of their recent findings is that a ... distinguish fibromyalgia patients from healthy controls. ...
... BETHESDA, Md. (Sept. 3, 2008) Mice given quercetin, ... were less likely to contract the flu, according to ... study also found that stressful exercise increased the susceptibility ... that negative effect. Quercetin, a close chemical relative ...
... widely cultivated crop that has been subjected to intensive ... years ago). The domestication of grapevine has undergone a ... The recent publication of the complete grapevine genome ... its content. This sequencing has shown that genes constitute ...
Cached Biology News:What a sleep study can reveal about fibromyalgia 2What a sleep study can reveal about fibromyalgia 3Substance found in fruits and vegetables reduces likelihood of the flu 2Substance found in fruits and vegetables reduces likelihood of the flu 3
(Date:7/23/2014)... , July 23, 2014 regulated information -- UCB ... and development pipeline with positive topline results from ... . This study was designed to evaluate the efficacy ... 200 mg/day, without titration) compared to placebo, as ... partial-onset seizures, not fully controlled despite treatment with ...
(Date:7/23/2014)...  Sofinnova Ventures, a Menlo Park ... Sofinnova Venture Partners IX, L.P. at the hard cap ... fund target of $425 million. Sofinnova focuses ... with recent funds, SVP IX will provide capital primarily ... with select investments in earlier stage opportunities. Investments will ...
(Date:7/23/2014)... 23, 2014 OncLive® is pleased ... has joined its Strategic Alliance Partnership program. ... program, UNC Lineberger will have the opportunity to ... of its cutting-edge research initiatives, community-directed cancer prevention ... will work with OncLive to educate their peers ...
(Date:7/23/2014)... July 23, 2014 Astra ... and comprehensive consultancy and pharma training services, and ... Safety (ACRES) , a non-profit integrating the expertise ... and maintain a global system for clinical trials, ... to improve the expertise of industry professionals through ...
Breaking Biology Technology:Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 2Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 3Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 4Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 5Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 6Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 7Sofinnova Raises $500 Million Biotech Venture Fund 2OncLive Expands Its Strategic Alliance Partnership Program With the Addition of UNC Lineberger Comprehensive Cancer Center 2OncLive Expands Its Strategic Alliance Partnership Program With the Addition of UNC Lineberger Comprehensive Cancer Center 3Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 2Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 3
... , Italian , Japanese and Chinese . ... University of Bristol has developed a new approach to quantum computing ... be done by today,s computers. Scientists from Bristol,s Centre ... used to perform complex calculations and simulations using quantum particles in ...
... NEW YORK, Sept. 16 The 16th Annual National ... Vegas, November 30 – December 3, will focus on ... a time of economic recovery. ErgoExpo,s core educational topics ... workforce, and safety will be coupled with tracks specifically ...
... PRINCETON, N.J., Sept. 16 Novo Nordisk Inc. has been selected ... one of the nation,s top companies for family-friendly benefits. Earlier this ... "100 Best Companies to Work For" and NJBiz,s "Best ... Companies, family programs adeptly help employees in all areas of their ...
Cached Biology Technology:Optical chip enables new approach to quantum computing 2Optical chip enables new approach to quantum computing 32010 National Ergonomics Conference Coming To Las Vegas, Nov. 30 - Dec. 3 With Larger Expo; 22010 National Ergonomics Conference Coming To Las Vegas, Nov. 30 - Dec. 3 With Larger Expo; 32010 National Ergonomics Conference Coming To Las Vegas, Nov. 30 - Dec. 3 With Larger Expo; 4Novo Nordisk Named a 2010 Working Mother 100 Best Company 2Novo Nordisk Named a 2010 Working Mother 100 Best Company 3
... bath, with a comprehensive array of accessories. ... baths with seamless, splash-water protected keypad offer ... (LED) indicating up to 6 temperature values ... MICROPROCESSOR technology with PID temperature control eliminates ...
... Provides a buffered anti-freeze environment for ... Maintains a liquid, low viscosity solution at ... is necessary and sampling is convenient ... during long-term storage Protect enzyme conjugates ...
This buffer is Specifically formulated to be used with Endogen's Poly-HRP Streptavidin...
... SearchLight® Array Analyst Software has been ... arrays. Mathematical algorithms allow the software to ... spot within each well of an ELISA ... SearchLight® Array Analyst Software has been customized ...
Biology Products: