contaminants 2 2

Tag: "contaminants" at biology news

Contaminants linked to sturgeon decline in Columbia river

...as above Bonneville Dam have high amounts of toxic contaminants in their livers, sex organs and muscle tissue. "... eat moves and the water and sediments bearing the contaminants moves. The Columbia receives input from numerous sources, so any population of fish at any one site ...

Albatross study shows regional differences in ocean contamination

...he marine food chain, albatrosses accumulate toxic contaminants such as PCBs, DDT, and mercury in their bodies. A ...t she added that the distribution and transport of contaminants in the North Pacific involves processes that are still not fully understood. Concentrations of DDE...

Vegetables inhibit growth of prostate cancer in mice with human tumors

...he marine food chain, albatrosses accumulate toxic contaminants such as PCBs, DDT, and mercury in their bodies. A ...t she added that the distribution and transport of contaminants in the North Pacific involves processes that are still not fully understood. Concentrations of DDE...

Salmon go veggie to save wild fish stocks

... in fish feed will also reduce the accumulation of contaminants in salmon such as PCBs and dioxins that are present in wild marine fish. This new "vegetarian" dietary approach is increasingly being adopted and will likely be applied to many other cultured fish species in the future. ...

Many cleaners, air fresheners may pose health risks when used indoors

...r work in two areas: an investigation of toxic air contaminants in household cleaning products and air fresheners,...y's 1990 Clean Air Act Amendments and as toxic air contaminants by California's Air Resources Board. Their toxicity varies with their chemical structure. Terpenes ...

DOE JGI finishes 100th microbial genome

...nts and in the bioremediation of organic and metal contaminants in groundwater. Rhodobacter sphaeroides. Samuel Kaplan, University of Texas Health Sciences Center at Houston. Metabolically diverse, grows in wide variety of conditions; photosynthetic, providing fundamental insights into light-driven, renewable-...

Bird brains shrink from exposure to contaminants

...ble to the effects of pesticide residues and other contaminants in the environment than other animals. As well, American robins are often exposed to high levels of DDT and other chemicals because they rely heavily on earthworms as part of their diet. They specifically chose these birds in the Okanagan Valley beca...

UCSD researchers develop 'smart petri dish'

...bout the way environmental toxicants such as water contaminants or viruses like hepatitis cause long-term liver damage." Others involved in the development include Sara Alvarez, a graduate student in Sailor's laboratory, and Austin Derfus, a graduate student of engineering in Bhatia's former UCSD laboratory. UC...

Precision biochemistry tracks DNA damage in fish

...ntal Protection Agency's Superfund list because of contaminants including polychlorinated biphenyls (PCBs), polycy...rkers to provide a direct measure of the impact of contaminants on fish populations. Moreover, since natural DNA repair processes may gradually reverse the damage i...

Major initiative proposed to address amphibian crisis

...scade Range. Work is continuing at OSU today on contaminants and the effects of UVB solar radiation that may amplify the impacts of the fungus which causes chytridiomycosis. Amphibian declines have been documented in North and South America, Europe, Asia and Africa. Several species in the Pacific Northwest ...

OHSU study says stem cell 'fusion' occurs in tumors

...vironment. Therefore, it sees all of the offensive contaminants that you ingest, from the beer you drink to the charbroiled hamburger you eat, that can induce mutations in the cells. The gut protects itself by rapidly turning over its epithelial cells. Plus, when there is damage to the surface lining, it is criti...

Particle size matters to bacteria ability to immobilize heavy metals

...lity and bioavailability of iron and environmental contaminants like lead, cobalt, and arsenic. Ph.D. student Saumyaditya Bose and Professor Michael Hochella Jr., both in geosciences in the College of Science at Virginia Tech, and their research colleagues at Pacific Northwest National Laboratory (PNNL), are l...

Sequencing of the oyster mushroom genome

...ntial for use in bioremediation –biodegradation of contaminants ? reasons why, together with other crops such as t...signing systems to enable the elimination of these contaminants from the environment. The oyster mushroom is also a fungus the cultivation of which is widespread...

Salamanders suffer delayed effects of common herbicide

...al Protection Agency, it is one of the most common contaminants in ground and surface water. Rohr and his colleagues Timothy M. Sesterhenn, doctoral candidate, Brent D. Palmer, associate professor, and Tyler Sager, doctoral candidate, all at the University of Kentucky, Lexington, exposed streamside salamander...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

...is project because we know that they bioaccumulate contaminants from water and their prey, which may include toxic metals, farm and industrial runoff and wastes from aging municipal sewer systems," said Conrad D. Volz, Dr.P.H., M.P.H., principal investigator, department of environmental and occupational health, U...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...posable use . The chemical mechanism to detect contaminants in a sample is very similar to that used by the im...nals the device can determine the concentration of contaminants in the sample. According to Isabel Pividori, researcher at the UAB Sensors and Biosensors Group a...

Asexual worm quickly adapts to soil contamination

Soil contaminants lead to rapid genetic adaptations in the nematode Acrobeloides nanus. The worms from contaminated soil live longer and lay more eggs under polluted conditions than the worms from unpolluted soil. Dutch-sponsored researcher Agnieszka Doroszuk demonstr...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...egnant women. During the gestation period, all the contaminants accumulated in the organism have direct access to the microenvironment where the embryo/foetus develops. The doctoral thesis Exposición materno-infantil vía placentaria a compuestos químicos medioambientales con actividad hormonal (Maternal-child e...

Premature births may be linked to seasonal levels of pesticides and nitrates in surface water

...des and nitrates as well as to other environmental contaminants is detrimental to many outcomes of pregnancy. As a neonatologist, I am seeing a growing number of birth defects, and preterm births, and I think we need to face up to environmental causes," said Dr Winchester, who is also director of Newborn Intensiv...

1 2