The president pointed out that the EPA has long treated saccharin as a toxic chemical.
The cause of his woes -- dioxin, a toxic chemical discharged by the waste facility.
The topics include civil engineering, insect genetics, invasion biology, fish population dynamics, and toxic chemical exposures, among others.
Pfizer was studying cytisine, a toxic chemical found in the coffee tree and in flowering Chinese shrubs, as a potential antinicotine drug.
When farmers use Roundup, which is considered a mild herbicide, instead of other harsher chemicals to kill weeds, they actually cut down on overall toxic chemical use.
Imagine hospitals that lead society in reducing toxic chemical exposures , and that are reducing their waste, saving money and improving patient care at the same time.
Many law firms now have Web sites programmed with key words so that they come up in searches for phrases like personal injury or toxic chemical lawyer.
What is more, virtually any plant used to manufacture fertilizers, pesticides or pharmaceutical products can be readily adapted to churn out large quantities of the toxic chemical agents.
Tear gas is a generic term for a group of at least 15 toxic chemical agents that disable people by exposing their lungs, skin and eyes to irritants.
Mr. Schmitz later confronted Mr. Daisey, and according to a transcript posted online, asked the stage performer about the workers he said were poisoned by the toxic chemical known as N-hexane.
Worse still, according to the Iraq Survey Group, Saddam's planning envisioned placing toxic chemical and biological agents in aerosol cans and perfume sprayers for shipment to the United States and Europe.
Firms testing the new wave of stroke treatments aim to boost their odds of helping more patients by finding compounds that act later in the toxic chemical cascade, perhaps six hours after a stroke.
One could be forgiven for thinking that the detonation of two "improvised explosive devices" equipped with toxic chemical agents would be seen as confirmation that there are still Weapons of Mass Destruction (WMDs) in Iraq.
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And they prefer foreign brands: they still remember the melamine scandal of 2008, when at least six babies died because Chinese firms had added a toxic chemical to raw milk to make it appear higher in protein.
By combining an artist and scientific quest, the two professors at Michigan State University found that a certain type of metal-loving bacteria can transform high amounts of the toxic chemical compound gold chloride from a liquid into solid 24-karat gold.
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Longevity genes appear to slow down the aging process by making cells and tissues more stress-resistant, better able to withstand the inevitable environmental insults that accumulate over a lifetime from bad diet, inflammation, radiation, genetic mutations and toxic chemical by-products called free radicals.
People don't realize that lead is all over their homes in a wide variety of products, particularly in things like extension cords and wire and cable, your holiday string lights when you're stringing them up this year, you'll probably see a warning label that says that the product contains lead, known to be a toxic chemical in the state of California.
New Zealand's government said it hasn't found traces of dicyandiamide, a chemical that is toxic to humans in high doses, in dairy products since mid-November.
The existing law that regulates chemical safety, the Toxic Substances Control Act, was written in the 1970s and is ineffective and outdated.
When they then fired chemical weapons, the toxic gases seeped in and often pooled in the cellars, proving even more deadly, she said.
Most of these deaths occur in developing countries where larger amounts of harmful chemical compounds such as toxic gases and particulate matter are released in the atmosphere.
Researchers were unable to explain what caused the results, although they did note the treatment led to the formation of hydrogen peroxide, a chemical known to be toxic to cells.
The chemical byproducts of these impurities are generally toxic, in any quantity, certainly over time.
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This can turn a non-toxic substance called 5-fluorocytosine into a nasty chemical called 5-fluorouracil that kills all cells, normal and malignant.
The next stage, currently still in the laboratory, is to develop coatings that change colour when they absorb toxic chemicals, thus alerting soldiers that they are under chemical attack.
Putting the cart before the horse, the EPA issued preliminary clean up goals for dioxin on December 31, 2009 before the agency had completed a new risk assessment on the chemical, widely perceived as one of most toxic environmental pollutants (the assessment is due by the end of this year).
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Guilford researchers hope to find a chemical that can block this enzyme, thereby stopping the toxic effects of glutamate without having to bludgeon brain-cell receptors with noxious chemicals.
More specifically, the report highlights the need to make breast cancer research more interdisciplinary, to conduct more research into chemical and physical environmental factors, and to improve the Toxic Substances Control Act (TSCA).
Floodwaters from the east would carry toxic waste from the "Industrial Canal" area, nicknamed after the chemical plants there.
"We're now able to get an idea, at a very early stage, which compound will be a good chemical series rather than find out five years later that it is toxic, " says Hargreaves.
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