The effect of diminishing sea ice isn't limited to increasing atmospheric greenhouse gas concentrations.
The researchers then tested the phthalate concentrations in the foods fed to the participants.
Chlorophyll concentrations are vitally important because chlorophyll forms the building blocks of marine life.
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Washington, DC has one of the world's great concentrations of museums, most of them free.
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And an analysis of the plumes thrown up by the impact showed mysterious concentrations of mercury.
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Such a contest can lead to stable, and often complex, arrangements of the chemicals' relative concentrations.
In some areas with large concentrations of such firms, unionisation is even more widespread.
In the fat-shedding livers, by contrast, she found high concentrations of a protein called fatty-acid-binding-protein 4.
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The existing guidelines on acceptable concentrations of various air pollutants were set in 1987.
Concentrations of both peaked from Wednesday to Saturday, and fell to a minimum on Monday.
Lower concentrations can damage engines without having an immediate effect on how well they work.
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They looked filled with varying concentrations of apple juice, one redder than the next.
"Greenhouse gas concentrations have reached record levels despite the economic slowdown, " observed WMO secretary-general Michel Jarraud.
They number around 10m, with strong concentrations in battleground states such as Virginia, Colorado and Florida.
Increased concentrations of radioactive material were found in milk and vegetables in the area.
They also found water attached to some of those chemicals in higher concentrations than was expected.
Monarchs and other authoritarian rulers have never liked concentrations of wealth outside their control.
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That, however, only provided the researchers with a two-dimensional map of such concentrations of matter.
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They were represented to purport a direct causal fit, suggesting that increased atmospheric CO2 concentrations produce warming.
Reactors need u-235 in concentrations of 3% to 5%, requiring the enrichment step to make it useful.
As you might imagine, scoring works across such a diverse array of concentrations is no easy task.
It can blister a person's lungs if it is inhaled and can cause death in high concentrations.
Wolfe-Simon and her colleagues found the critter in a lake in eastern California with high arsenic concentrations.
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The Lower Ninth Ward now has one of the largest concentrations of green buildings in the country.
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Concentrations of more than 1, 000 asbestos bodies per gramme of dry lung tissue were found in 13%.
But heavy concentrations of loans to particular countries or industries that suffer widespread defaults can do so.
There was a danger, he said, in building big estates to house large concentrations of disadvantaged people together.
When a cow has BSE, certain parts of its carcass harbour far larger concentrations of prions than others.
Cruise missiles and jet fighters work against fixed targets, concentrations of forces or heavy weapons on open ground.
In 2011, concentrations reached a new high of 1813 parts per billion (ppb), 259% higher than pre-industrial levels.
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