Sentences with phrase «in ambient air»

Then there is the concern of oil contamination in ambient air.

Though there are changes in ambient air pressure, they are usually not that large as it could play a role here.

We present an analysis of how three alternative scenarios for US power plant carbon standards could change fine particulate matter and ozone concentrations in ambient air, and the resulting public health co-benefits.

When operated in ambient air, the capacity drops because the water in the air fouls the lithium metal in the batteries.

It acts as an extra exhaust outlet at full throttle (two decibels louder than FK2), but at mid-loads, negative pressure in the middle pipe sucks in ambient air and reduces boom.

Heat pump dryers take in ambient air, heat it, and then recirculate it in the dryer to maintain the temperature without using much energy.

The Proton Transfer Reaction Mass Spectrometer (PTR - MS) measures gas - phase compounds in ambient air and headspace samples before using chemical ionization to produce positively charged molecules, which are detected with a time - of - flight (TOF) mass spectrometer.

Weather and climate affect both the concentration of ground - level ozone in the ambient air and to what degree the stomata are open.»

For the first 12 years, the plants hummed along as expected, with C3 plants responding more strongly to extra CO2 — a 20 percent boost in growth compared with plants grown in ambient air — and C4 plants largely ignoring the difference.

That amounts to about 50 percent more CO2 than was in ambient air at the experiment's beginning, and double preindustrial levels.

The report says while there is some low - level silica exposure on beaches and in ambient air in general, there is no evidence such low - level exposure causes health effects.

However, they, especially n - type semiconducting polymers, currently lag behind inorganic counterparts in the charge carrier mobility — which characterizes how quickly charge carriers (electron) can move inside a semiconductor — and the chemical stability in ambient air.

«The humidity around a fingertip is slightly higher than the overall level of moisture in the ambient air,» explains Katalin Szendrei, a member of Prof. Lotsch's research group.

Compared to power - plant emissions, carbon dioxide in the ambient air is much more diffuse and harder to concentrate.

Cardiovascular Effects of Nickel in Ambient Air.

Care should also be taken to prevent silver tarnish build - up, a dulling that naturally occurs when silver reacts with sulfur or hydrogen sulfide in the ambient air.

Economic growth and increasing urbanization of emerging economies such as India's have been accompanied by a rise in ambient air pollution levels, especially in urban areas.1 However, the...

Though the temperature may creep up a little more into the mid-late afternoon, there can be, generally speaking, no additional significant increase in the ambient air temperature because that would require a similar increase in temperature of the entire air mass from the surface to levels up to 15,000 feet or thereabouts.

The incoming Obama EPA agreed, and is now considering lowering ozone to, in some areas, levels that are at or above what occurs naturally in the ambient air.

Millions of electronic CO2 sensors that control ventiliation fans in high occupancy buildings use the consequence of back radiation at a resonant frequency of CO2 to determine concentration in the ambient air.

Similar to Scanning Tunneling Microscopy (STM) operating in ambient air, the Park SICM operates in liquid without making physical contact with the sample.

Here's how it works: 18 huge fans suck in ambient air, which is filtered and goes through a process of adsorption and desorption to extract the CO2.

From a thermal point of view, the system is basically an unglazed collector that takes in ambient air and heats it all the way up to temperatures good for space heating (most solar heating systems get a head start by heating room temp air up).

The PTR - MS allows many volatile organic compounds in ambient air to be detected at levels from 10 — 100 parts per trillion by volume (pptv).

The irony is that this electrical energy is already potentially available at the top of the power station chimney, because on release one «solution» of greenhouse gas — in the stack's emissions — mixes with a different - strength solution — in the ambient air — all the time.

In this study, the pollution status of particulate matter (PM) in ambient air was investigated based on the concentration data of three important PM fractions (PM2.5, PM10,...

These estimates are based on extrapolating what we know about carbon capture and storage (CCS) at power plants, where CO2 levels in flue gases are much higher than in ambient air.

For instance, in a semiurban roadside environment, the NCA represented 20 — 54 % of the total particle number concentration in ambient air.