Cesium remains the most widely dispersed isotope while concerns remain over long-term contamination from strontium and plutonium.
And what prevents soil and surface water contamination from countless units that ultimately wind up in landfills?
FORBES: How Many Politicians Are Needed To Screw Up A Light Bulb?
Woodland burials are currently not allowed in Jersey, due to fears of contamination from metal contained in people's bodies.
Although there was a possibility of contamination from modern sources, the team said that there were three factors that weighed against this.
BBC: Maize was key in early Andean civilisation, study shows
"We are very aware that while the risk of infection from insulin pen re-use is extremely small, cross-contamination from an insulin pen is possible, " Finan said.
Over the last several years, thousands of beaches have been closed as a result of bacterial contamination from sewage and polluted runoff from farms and city streets.
The debate should be over anyway, say both state regulators and the drilling company Rex Energy, because multiple independent reviews found no contamination from drilling at all.
President Obama and the White House Council on Environmental Quality are committed to clean water, and want to reduce contaminants in drinking water, including contamination from improperly disposed medications.
Washing not only warms up the egg, which then cools slowly in the carton, but also removes the natural protective film on the shell, opening the door to contamination from the washing water.
Beijing Times says authorities must also act quickly to introduce acceptable quality standards for bottled drinking water to allay public fears about contamination from deteriorating air and water quality as well as polluting industries.
Two years ago, on March 14, 2011, the National Nuclear Security Administration sent flight crews to Japan to monitor airborne and ground contamination from the still developing nuclear crisis at the Fukushima-Daiichi nuclear plant.
"There have now been a number of attempts which have failed to find the retrovirus in other samples, and this research suggests that in fact XMRV is probably a contamination from mouse DNA, " he said.
In Washtenaw County and Ann Arbor, Michigan a 1, 4-Dioxane, in groundwater and surface soil contamination from Gelman Science, persists after nearly 20 years of cleanup activities and has now spread in groundwater to an area over three miles long and a mile wide.
Levels of phosphates in fresh waterways can be much higher than normal because of contamination from municipal and domestic wastewater, whether you're hooked up to a sewer or have a septic system, says Helen Suh MacIntosh, an associate professor in environmental health at Harvard University.
One of the points about fracking, which is a process that I think is widely misunderstood, is that there are lots of environmentally oriented people, particularly in places like New Jersey, Pennsylvania, and to some extent Colorado, who have voiced strong opposition to fracking, particularly politicians, on the basis that they're concerned about contamination from these chemicals getting into groundwater.
Contamination worries from local governments due to hydraulic fracturing and ongoing concerns about the climate impacts from burning natural gas continue to hamper development efforts.
FORBES: Log Baby Log: The Race to The Big New Resource Play You Haven't Heard Of
But one expert said any claim would be complicated by the variations in water quality and the lack of a contamination finding from state or federal agencies.
Yes, you could cook the hell out of your hamburger to keep you and your family safe from contamination.
FORBES: Are You Eating 'Superbugs?' Resistant Bacteria Found At Alarming Rates On Meat In Stores
And it is not only the water in the Yellow River, which flows through nine provinces, that is at risk from contamination.
The firm said it believed the contamination had come from one supplier - after further results from the Irish Department of Agriculture.
The Belgian government said it had traced the contamination to feed from a company that supplied farms not only in Belgium but in France and the Netherlands too.
The defence claims forensic evidence, found in 2008 in a cold case review and allegedly linking Mr Dobson and Mr Norris to the killing of the black teenager, resulted from contamination.
BBC: Evidence from Stephen Lawrence jacket 'not transferred'
As I listened to presentation after presentation from scientists who spend their working days trying to protect the public from contamination in food, I was struck by the fact that the real story about what the FDA does is almost impossible to convey to the public.
They say their evidence, published in the journal Retrovirology, shows the virus found in patient samples arose from laboratory contamination.
You could get very ill from bacterial contamination or other pollutants that often and easily end up in airplane food.
FORBES: Why You Should Avoid Airport Food And Bring Your Own
The results can be barren fields, destructive floods or sickened populations from exposure to contamination.
Workers in blue uniforms and blue hairnets were moving in swift precision around long temperature-controlled assembly lines, sealed off from dust and contamination by glass walls.
Some scientists have proposed adding chemical tracers to fracking fluids as a way of confirming that any contamination of drinking water comes from the drilling process.
The world faces a wide range of serious, complex, and long-term water challenges, from shortages to contamination to local and regional disputes over water to long-term climate changes.
FORBES: Water Emergencies: Time for New Plans and Technology
Over the centuries, the main culprits in mass food poisoning have often been mycotoxins, such as ergotamine from ergot or fumonisin from Fusarium species, resulting from the fungal contamination of unprocessed crops.
FORBES: Bittman of the 'New York Times': Always Out To Lunch
应用推荐