Sentences with phrase «per cubic meter»

As few as 10 grains per cubic meter of air can provoke symptoms in the most sensitive people; during late summer months the count can reach into the hundreds.

If the energy per cubic meter is higher, and the ideal gas law informs us the temperature is proportional to the energy, than the temperature is higher.

The team found 0.5 million to 2.5 million bacterial cells per cubic meter of air, which is about what they expected.

He predicts that water off the Oregon shore will peak at around 10 to 20 becquerel per cubic meter of water as ocean currents carry radiation from Japan in the years ahead.

The known laws of physics allow for a matter density up to the so - called Planck value of 1097 kilograms per cubic meter — the density at which the strength of gravity becomes so strong that quantum - mechanical fluctuations should break down the fabric of spacetime.

Average concentrations of PM2.5 in Beijing stood at 73 micrograms per cubic meter in 2016, down 9.9 percent on the previous year.

Scientists specify the concentration of individual gases in the atmosphere as volume fractions (rather than, e.g., grams per cubic meter of air) because then the numbers do not depend on temperature and pressure, which vary greatly in the atmosphere.

In contrast, when air mixed with 0.5 milligrams per cubic meter of formaldehyde was passed through the chamber, they observed a 7.4 per cent increase in cilia beating frequency relative to the baseline value.

Cleanrooms vary in classification according to the number of particles per cubic meter that are filtered from the air.

In the end, each increase of 10 micrograms of fine particulates per cubic meter of air increased the risk of any cardiovascular health event by 24 percent and the risk of dying from heart attack or stroke by 76 percent.

The models» composite annual mean OA surface air concentrations exceed 0.5 microgram of carbon per cubic meter across most continental regions, as shown at the left of Fig. 3, with maximum concentrations primarily over biomass burning regions and secondarily over industrialized areas.

For example, meeting growing demand by finding a new source of water or by building a new dam in a place like California could cost up to 60 cents per cubic meter of water.

: — RRB - Typo alert: density should be in kg per cubic meter, not square.

World Health Organization and U.S. Environmental Protection Agency soot «standards are 25 micrograms per cubic meter over 24 hours.

These predictions match the observed cosmic composition if the modern universe has an average density of 0.2 hydrogen atoms per cubic meter — far less than the amount of matter seen around galaxies and galaxy clusters.

A triple - product value of 7 x 1024 electron volt - seconds per cubic meter is required for an ignited, deuterium - tritium reactor.

Peak counts of Chinese Elm ranged from 39 to 475 grains per cubic meter, notably with a greater number of days within the moderate pollen range and longer duration of the fall pollen season.

The government is going to cut the tax on sugar - based ethanol producers by 80 % — from 120 REALS per cubic meter to 25 REALS.

If there are enough WIMPs to make up all the dark matter in our galaxy, then there should be several thousand per cubic meter in the region around Earth.

After the lead industry was unsuccessful in rebutting his arguments scientifically, after they lost the battle to keep lead in gasoline, after the ambient air lead standard went from 5 micrograms per cubic meter down to 1.5 in the»70s, they decided to attack him personally, and what they did was recruit two scientists who raised concerns without initially mentioning they had been hired by the lead industry.

Widder became the first scientist to count the numbers of bioluminescent creatures per cubic meter in a particular part of the ocean.

In preparing ballast treatment standards, which a federal court ruled inadequate in 2015, the EPA turned to some of the country's best scientists in the field to help establish a safe number of organisms that could be discharged per cubic meter of water while still protecting the Great Lakes and other U.S. waters from new invasions.

Further increasing the formaldehyde concentration to 1 milligram per cubic meter led to a dramatic increase — up to 136.4 per cent — in cilia beating frequency relative to the baseline value.

«We don't know if it will be possible to find him because many of the burials were anonymous, and there are about eight bodies per cubic meter — that is extremely dense,» says Carver.

They found that as the number of fine particles less than 2.5 microns in diameter increased, so, too, did the risk of dying: each jump of 10 micrograms per cubic meter corresponded to a 11 to 17 percent increase in the risk of dying from any cause.

They found the barnacle larvae were abundant, up to 950 larvae per cubic meter of water.

The present rules generally advise limiting exposure to roughly 100 micrograms of crystalline silica per cubic meter of air, averaged over 8 hours.

Sometimes it measured 7,000 micrograms of particulate matter per cubic meter, which is more than 400 times the maximum level that federal standards consider healthy.

Some days ago, concentrations of highly health - damaging PM 2.5 fine dust (particles of 2.5 µm and less in diameter) increased to more than 600 µg per cubic meter, more than 24 times the limit value given by the World Health Organization.

A new study in the August issue of Ecological Indicators shows that, on average, an increase in pollution particles in the air of 10 micrograms per cubic meter cuts victims» life expectancy by 9 - 11 years — more than previously thought.

For instance, she says, although an increase in carbon monoxide levels of 10 micrograms per cubic meter raises an individual's short - term heart - attack risk by just 5 % or so, a change in air quality of that magnitude could be expected to account for 4.5 % of all heart attacks in the exposed population.

The study results showed that for every additional unit of pollution per cubic meter of air that people inhaled in 1971, the risk of death between 2002 and 2009 increased by 2 percent.

For comparison, uncontaminated seawater contains only a few Becquerels per cubic meter of cesium.

It allows for a density of 1034 kilograms per cubic meter, which is high but not high enough to create a hole.

Absolute humidity is the same as the water vapor density, defined as the mass of water vapor divided by the volume of associated moist air and generally expressed in grams per cubic meter.

He then simulated the effect of long - term exposure to increased air pollution (of 10 micrograms of small particles per cubic meter) on mortality.