Tag: "pesticides" at biology news
USGS scientists tracking environmental damage from Floyd
...ly basis and analyze them for nutrients, bacteria, pesticides
andmetals. North Carolina The USGS is collecti...d's rains. The USGS has collected samples for pesticides
at several sites including a smallagricultural basin and a large river site. These are part of the ...
Biosensor expected to improve food safety
...issues, such as those associated withinsecticides, pesticides
and growth hormones." In addition to its application in the poultry and beef industries,Edmonds believes there is a need for the biosensor in the seafood industry. Itcontends with a variety of waterborne pathogens, particularly in shellfish. ...
USGS finds elevated levels of organochlorine pesticides in Aleutian bald eagles
Elevated levels of organochlorine pesticides
such as DDE have been associated with low rep...ody of research that indicates organochlorine pesticides
can be transported long distances on air and sea currents and affect wildlife populations in re...
New study claims data on pollutants worldwide are unreliable, and that some may be less--or more--harmful than thought
...Since Lewis estimates that about one-fourth of all pesticides
arechiral, the scope of the problem could be large...ng mirror images is currently prohibitive for most pesticides
andindustrial chemicals, though there are two notable exceptions--the herbicidesdichlorprop and meco...
Evergreens help block pesticide from crop fields
...on, or windbreaks, absorb pesticides
that would otherwise contaminate adjacent ... when farmers first apply pesticides
in the early spring, evergreen foliage would already be there to help colle...
Perils on your plate
...lance, the council thinks that health scares about pesticides
in food areunjustified on scientific grounds. "It'...ncarototoxin, a nerve poison. Campaigners against pesticides
accept that some scare stories are unjustified, but see the spoofmenu as dangerously unbalanced itse...
Chinese 'dragon' nears extinction, biologists warn
...heir habitat. Hunting and the use of agricultural pesticides
have also contributed to their decline. "Presently, the Chinese alligator is critically endangered and, if present trends continue, it will become the first species of crocodilian to become extinct in the wild within historical times," said Dr. Joh...
Could fish clean up sewage works?
...he original sewage is free of contaminants such as pesticides
and heavy metals. "They taste excellent," he says. If the water does contain heavy metals, however, the fish would have to be treated as toxic waste and disposed of by burning or burial in landfills. Specialists in water treatment say space and t...
Cockroach birth control from gene discovery
...eting. "They are the target of tons of neurotoxin pesticides
every year but they keep coming back for more. What we really need is an effective, nontoxic treatment - a birth-control method - to reduce cockroach populations without bothering other insects or humans, either." Scott admitted surprise that one o...
New USGS research shows how land use affects amphibians
...lines, including global change, contamination from pesticides
and other chemicals, increased exposure to ultraviolet radiation due to ozone thinning, and the spread of non-native predators. Many biologists suspect that a combination of factors may be responsible. These die-offs are of great concern because amph...
UCSD scientists identify genes controlling seed dispersal
...d use half as much of the chemical fertilizers and pesticides
that are now routinely sprayed on these plants." In their study, UCSD biologists Sarah J. Liljegren, Gary S. Ditta, and Yanofsky identified a type of gene, called a "shatterproof" gene, that allows Arabidopsis plants to disperse their seeds. Two oth...
Study finds children are exposed to pesticides
A University of Washington study suggests that pesticides
are finding their way into the bodies of pre-schoo...zinphos-methyl or phosmet, the two organophosphate pesticides
used most frequently in the region. Of children in the sample group, 56 percent had test results t...
USGS diagnoses causes of many US amphibian die-offs
...spread of non-native predators, contamination from pesticides
and other chemicals, and rising temperatures. Many biologists suspect a combination of factors may be responsible. At the Cottonwood Lake Study Area, sick salamanders were first noticed in May by USGS researchers Ned Euliss and David Mushet as they ...
Scientists combine chemistry and bioremediation to clean cadmium from soil
...-cadmium batteries, pigments, plastic stabilizers, pesticides
and more. It is most toxic in its free (ionic) form, which easily dissolves and moves through water, threatening groundwater supplies. There are two basic ways to deal with soil contaminated with such toxic heavy metals, Vairavamurthy says. One is t...
Farms and livestock leave their mark on the Chesapeake Bay
...ll describe the impact of runoff from copper-based pesticides
on marine life in the Bay. (The paper on this research, AGRO 140, will be presented at 3:05 p.m., Wednesday, Aug. 23, in the Renaissance Washington Hotel, Grand Ballroom Central.) Bo Liu, of Battelle Memorial Institute, will present the results of a...
Bees deliver fungicide more effectively than sprays, study finds
...sive process involving the mixing and measuring of pesticides
and wearing personal protection clothing. "Let the bees do the work," Kovach said. It was also significant that the bee-delivered natural fungicide was as effective as chemical sprays, because it allows farmers to use less chemicals in their fields, ...
Chemicals in carpet can linger long after exposure
...s like those released from mothballs, deodorizers, pesticides
and cigarette smoke typically settle in carpeting,.... Denser materials like the chemical components of pesticides
and mothballs can take months or even years to come out. Denser materials stick to the carpeting mor...
Just as you suspected: research shows a lot of things that taste bad are good for you
...hemselves against being eaten by secreting natural pesticides
and other bitter-tasting toxins. In small amounts, the phenols, flavnoids, isoflavones and other chemicals are proving to be good for us." Unfortunately, a dislike of these flavors has been ingrained in most people by nature. Humans and other animal...
USGS: Contaminants may play important role in California amphibian declines
...ent of Agriculture indicates that organophosphorus pesticides
from agricultural areas, which are transported to ...sting. "While crucial to the agriculture industry, pesticides
by their very nature can result in serious harm to wildlife both by directly killing animals and thr...
Study: living near where pesticides used may boost fetal death due to birth defects
...L HILL -- Living close to areas where agricultural pesticides
are applied may boost the risk of fetal death due ...those whose mothers lived near crops where certain pesticides
were sprayed. Scientists compared the cases of 73 women whose pregnancies ended because of birth ...
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