Floating sensors hold the oxygen to between 2 and 2.5 parts per million of water.
Floating sensors hold the oxygen to between 2.0 and 2.5 parts per million of water.
For comparison, the last time annual CO2 was 350 parts per million was in the 1980s.
On average the amount is growing by about 2 parts per million per year.
When measurements of carbon dioxide were first taken in 1958, it measured 315 parts per million.
So for every part per million (ppm) increase, a little less warming is generated.
They are considered "immediately dangerous to life" at a concentration of 50 parts per million.
North America's accident rate, 3.3 per million departures, was below the world average in 2010.
In about eight to 10 years, levels will not go under 400 parts per million, Butler said.
Before the 19th-century Industrial Revolution, the average carbon dioxide concentration worldwide was about 280 parts per million.
Back then, it took 7, 000 years for carbon dioxide to reach 80 parts per million, Tans said.
Since 1960, the atmospheric concentration of carbon dioxide has risen from 310 to 390 parts per million.
According to Roberto, the wastewater starts with about 35, 000 parts per million (ppm) of gunk and junk.
Wall Street values the reserves of coal companies at 7 cents per million Btu of chemical energy.
But SUVs followed minivans closely, at 28 driver deaths per million registered SUVs, the IIHS study found.
Since the start of the industrial revolution, that concentration is now up to 390 parts per million.
Next door neighbor Montana, with similar gun laws also had a low rate of 13 per million.
At six or seven hundred parts per million, the air in here is dreadful but sustains life.
Dauch whipped the aged factories into shape, improving quality from 13, 441 defects per million parts to only 4.
That exceeds the average for the past decade of 2.0 parts per million, the World Meteorological Organization says.
China presents a particular conundrum in efforts to rein in atmospheric carbon dioxide levels at 450 parts per million.
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However, he said it was possible that a dose lower than 80 parts per million might also be effective.
Europe also had an accident rate of 3.3 per million departures with 24 accidents, two of which included fatalities.
Looking at deceased donors per million population -- a commonly used benchmark -- rates vary widely around the world.
So 800, 000 years and a bandwidth of 170 to 300 parts per million, and now we are over 390.
In 2010 there were 9.4 accidents and almost six deaths per million man-hours.
Scotland's child fatality rate of 32 per million population was also sixteenth lowest.
Over the course of the past 800, 000 years, says NOAA, these levels bounced between 180 and 280 parts per million.
In California, for instance, the energy cost of piping water between basins amounts to roughly 13, 000 kwh per million gallons.
Vehicles averaged 56 driver deaths per million, but the death rate among smaller car owners was dramatically higher at 82.
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