Sentences with phrase «per cubic»

And conversely, the greater the surface area per cubic volume in a space covered with Pure Genius, the more effective it is at cleaning the air.

Making your planting beds pop can cost as little as $ 2 a bag ($ 19 per cubic yard) or as much as $ 7 per bag ($ 47 per cubic yard) depending on the quality and type of mulch.

In Canada the federal government has recommended that the Canadian acceptable level for radon should be 800 becquerels per cubic meter of air (800 Bq / m3).

Measured in Becquerels per cubic meter (Bq / m3), radon exists in low levels in most environments, with an average outdoor level of 10 Bq / m3 and indoor level of 45 Bq / m3, a difference explained by the build - up of radon that confined spaces allow.

Typically measured in Picocuries per liter (pCi / L) in the U.S. and Becquerels per cubic meter (Bq / m3) in Canada --(1 pCi / L = 37 Bq / m3)-- radon is quite common at low levels in most environments, with an average outdoor level of 0.27 pCi / L (10 Bq / m3) and indoor level of 1.21 pCi / L (45 Bq / m3).

It varies as per the cubic capacity of the engine.

PDA at STP (i.e., 273.15 K and one atmosphere pressure) is called standard dry air (SDA) and has 393 ppmv, 393 ml, 17.5 mmoles, 772 mg or 0.000772 kg of CO2 per cubic meter.

In the atmosphere, pressure declines with altitude, so while the CO2 concentration may be stable in terms of parts per million, in terms of molecules per cubic meter, it declines.

The Chinese study found that in 2012, more than 70 per cent of the population was exposed to annual PM 2.5 pollution levels higher than 35 micrograms per cubic metre, the country's benchmark for healthy air quality.

Global mass balance data are transformed to sea - level equivalent by first multiplying the ice thickness (meters) lost to melting by the density of ice (about 900 kilograms per cubic meter), to obtain a water equivalent thickness, and then multiplying by the surface area of these «small» glaciers (about 760,000 square kilometers).

For dry cold polar air at -60 deg C and 1 atm pressure, the concentration of CO2 is about 390 ppmv, and there is 22.3 mmoles per cubic meter.

If we were doing things right, the seas wouldn't be turning rancid, and the air would never get to a hundred thousand particles per cubic centimeter.

For example, we could have 1 air molecule per cubic meter.

We end up with a thicker atmosphere (a factor of 1.75 more moles per cubic meter), but the same surface temperature.

At EPA's 455 nation - wide PM - 2.5 trend monitoring sites the annual average concentration has gone from 13.4 micrograms per cubic meter in 2000 to only 7.7 in 2016.

That gravity is responsible for the 33K in unexplained heating and contrary to the assumptions of the radiative transfer model, increasing the weight of N2O2 in the atmosphere will increase the surface temperature, as more and more molecules are packed into a smaller volume, resulting in a net increase in energy per cubic meter of atmosphere at the surface, which we measure as an increase in temperature.

At EPA's 42 nation - wide SO2 trend monitoring sites the annual average concentration has gone from 154 micrograms of SO2 per cubic meter in 1980 to only 20.2 in 2016 (87 % reduction).

That the molecules i the atmosphere all have roughly the same amount of energy due to convection, but since there are many more of them per cubic meter at lower altitudes, there is more energy per cubic meter, which we register as increased temperature.

ferd berple says: ``... increasing the weight of N2O2 in the atmosphere will increase the surface temperature, as more and more molecules are packed into a smaller volume, resulting in a net increase in energy per cubic meter of atmosphere at the surface, which we measure as an increase in temperature.»

If we increased the atmospherice pressure 90 fold, such as on venus, then there would be 90 times as much N2 per cubic meter, and the back radiation would go up proportionally, as would the surface temperature.

At EPA's 23 nitrogen dioxide trend monitoring sites the annual average concentration has gone from 111 micrograms of SO2 per cubic meter in 1980 to only 43.7 in 2016 (61 % reduction).

where Power is given in Watts (i.e. Joules / second), the Swept area in square metres, the Air density in kilograms per cubic metre, and the Velocity in metres per second.

The level of fine particulate matter, or PM2.5, in Harbin's air this week reportedly reached 1,000 micrograms per cubic meter, exceeding the World Health Organization's daily target level by a factor of 40.

Early on Thursday morning levels of fine particulate pollution known as PM2.5 reached around 500 micrograms per cubic metre, according to the US Embassy which measures air pollution and publishes the levels on its Twitter feed.

The current annual standard is 15 micrograms per cubic meter.

Reporting: The average number of Btu per cubic foot of gas at 60 degrees Fahrenheit and 14.73 psia delivered directly to consumers.

This region reflects radio waves with frequencies up to about 35 megahertz; the exact value depends on the peak amount of the electron concentration, typically 106 electrons per cubic centimetre, though with large variations caused by the sunspot cycle.

Thus, as the tree grows in height, its mean mass - specific metabolic power (Watts per cubic meter of biomass) decreases.

The price of desalinated water, is now down to less than 0.50 c per cubic metre.

.03 lbs of carbon per cubic foot of natural gas * 150 trillion cubic feet per year (100 now) = 2.25 billion tons of carbon per year.

The Korea Meteorological Administration announced that the average atmospheric concentration of particulate matter measuring 10 micrometers (PM10) on the day was 228 micrograms per cubic meter, the most dangerous level in its five - level air pollution scale.

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 coal - fire boilers in thermal plants, the maximum allowed sulfur dioxide emission in the specially controlled regions is halved to 50 milligrams per cubic meter, from the 100 milligrams per cubic meter that is currently permitted in most of the country, said the report.

Pros: some brands are water based so there are no ozone depleting compounds in them, lowest cost of spray foams, very good sound insulation, doesn't shrink, settle or sag, fills all voids, relatively lightweight at 0.5 lb per cubic foot.

According to the bureau, the capital succeeded by reducing PM2.5 concentrations to 58 micrograms per cubic meter — a reduction of 35.6 percent from 2012.

Please liberal climate change scientists, how do you melt tens of thousands of miles of mile thick glacial ice with 144 BTU's per cubic foot of ice.

Modelling results suggest monthly average levels of ozone could reach around 110 µg / m3 (micrograms per cubic metre) over central France in July 2100, an increase of 50 µg / m3 from the year 1990.

The molar density of a gas tells you the average number of molecules per cubic metre of the gas.

CO2 has about the same mass per cubic meter all the way to 70 km altitude (read well mixed).

The concentration of cloud condensation nuclei in the lower troposphere at a supersaturation of 1 percent ranges from around 100 per cubic centimetre (approximately 1,600 per cubic inch) in size in oceanic air to 500 per cubic centimetre (8,000 per cubic inch) in the atmosphere over a continent.

More of them per cubic inch at same speed is a higher velocity of averaged gas.

According to the Hoffman Road Landfill web site (21), the disposal of Solid Waste (Garbage) at the only Lucas County landfill, will be tipping fees at $ 16 per cubic yard, which equates roughly to over $ 48 / ton since a ton of waste equals about 3.3 cubic yard.

Same speed of molecules but more of them per cubic inch is higher temperature.

«The amount of water vapor in clouds varies widely depending on temperature, pressure, etc., but five grams per cubic meter is about average.»

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.

Requires (1) bottle - type water dispensers designed for dispensing both hot and cold water to not have standby energy consumption greater than 1.2 kilowatt - hours; (2) commercial hot food holding cabinets with interior volumes of 8 cubic feet or greater to have a maximum idle energy rate of 40 watts per cubic foot of interior volume; and (3) portable electric spas to not have a normalized standby power greater than 5 (V 2/3) watts where V equals the fill volume in gallons.

In smoky conditions, the team found, there are almost twice as many cloud condensation nuclei per cubic centimetre.

Sorek will profitably sell water to the Israeli water authority for 58 U.S. cents per cubic meter (1,000 liters, or about what one person in Israel uses per week), which is a lower price than today's conventional desalination plants can manage.

Certified Passive House ventilation units have exceptional ECM fan energy performance of no more than 0.45 Watt - hours per cubic metre of ventilation air, so the cost of running one is $ 50 — $ 70 per heating season, with much of this energy cost recovered in the form of heat.

Heating value (natural gas): The average number of British thermal units per cubic foot of natural gas as determined from tests of fuel samples.