News tagged with toxicity levels
Tobacco company misrepresented danger from cigarettes: study
A new UCSF analysis of tobacco industry documents shows that Philip Morris USA manipulated data on the effects of additives in cigarettes, including menthol, obscuring actual toxicity levels and increasing ...
Jan 06, 2012 |
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Scientists examine toxicity of medicinal plants in Peru
Many developing countries rely on traditional medicine as an accessible and affordable treatment option for human maladies. However, until now, scientific data has not existed to evaluate the potential toxicity of medicinal ...
Dec 14, 2011 |
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Using air pollution thresholds to protect and restore ecosystem health
Air pollution is changing our environment and undermining many benefits we rely on from wild lands, threatening water purity, food production, and climate stability, according to a team of scientists writing in the 14th edition ...
Nov 14, 2011 |
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Pilot study suggests new approach to treat preeclampsia
A novel therapy that reduces elevated blood levels of a potentially toxic protein in women with preeclampsia, a dangerous complication of pregnancy, may someday address the therapeutic dilemma posed by the condition – ...
Aug 02, 2011 |
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Soybean genetic treasure trove found in Swedish village
The first screening by U.S. Department of Agriculture (USDA) scientists of the American ancestors of soybeans for tolerance to ozone and other stresses had an eye-opening result: The world superstars of stress ...
Jul 29, 2011 |
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From oil spill to toxic waste: The polymer solution
(PhysOrg.com) -- Last October, a containment dam belonging to a Hungarian alumina manufacturer collapsed after heavy rains, releasing 200 million gallons of caustic sludge. Eight people died in the flood of ...
Jul 11, 2011 |
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Mini-submarines to gauge Lake Geneva pollution
Two mini-submarines that have filmed the wreckage of the doomed luxury cruise liner Titanic will dive into Lake Geneva to gauge its pollution levels, Swiss researchers said Tuesday.
Jun 14, 2011 |
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L.A., Bakersfield remain among U.S.'s most polluted cities, report says
Smog and soot levels have dropped significantly in Southern California over the last decade, but the Los Angeles region still has the highest levels of ozone nationwide, violating federal health standards an average of 137 ...
Apr 28, 2011 |
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Charcoal biofilter cleans up fertilizer waste gases
Removing the toxic and odorous emissions of ammonia from the industrial production of fertilizer is a costly and energy-intensive process. Now, researchers in Bangladesh have turned to microbes and inexpensive wood charcoal ...
Oct 14, 2010 |
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Peru town copes with being devoured by mine
(AP) -- The mile-wide gash grows almost daily with each dynamite blast, slowly devouring this bleak provincial capital high in the Andes.
Apr 18, 2010 |
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Drugs needed to preserve eggs for reproduction need to be given in stages
Cryoprotectants needed to preserve eggs for reproduction need to be given in stages, albeit rapid ones, say scientists who have developed a mathematical model that predicts optimal time for loading and unloading ...
Apr 29, 2009 |
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