Sentences with phrase «volatile organic compounds from»

Oil and gas standards: In April 2012, U.S. EPA finalized air pollution standards for the oil and gas industry that would capture up to 95 % of volatile organic compounds from new hydraulically fractured wells each year and in the process also reduce methane emissions.

Healthfulness of an interior environment; IAQ is affected by such factors as moisture and mold, emissions of volatile organic compounds from paints and finishes, formaldehyde emissions from cabinets, and ventilation effectiveness.

Sea salt comes from sea spray over the oceans, dust from dry desert areas, black carbon from burning of forests and fossil fuels, sulphates derive from ocean plankton and burning coal, nitrates derive from fertiliser use, car exhausts and lightning, and secondary organics come from the stew of volatile organic compounds from industrial and natural sources alike.

It seems to have antimicrobial properties too: Volatile organic compounds from Centaurium erythraea Rafn (Croatia) and the antimicrobial potential of its essential oil.

Researchers in the US have developed an optimized solid - phase microextraction method for extracting volatile organic compounds from cells infected with viruses, as a way of diagnosing viral diseases.

In August, the EPA issued rules to limit air pollution by volatile organic compounds from «fracking» which should, as a by - product, also reduce emissions of methane.

In one, emissions of nitrogen oxides and volatile organic compounds from human activities would continue at current levels through 2050.

Emission of volatile organic compounds from petunia flowers is facilitated by an ABC transporter.

The city authorities in Vienna hope this will reduce the emissions of volatile organic compounds from vehicles from 60 to 45 tonnes a day.

Not exact matches

Soy oil is generally separated from flaked soybeans — leaving defatted meal that's ground into flour — using a chemical called hexane, one of the volatile organic compounds that constitutes natural gas, crude oil and gasoline.

From a human health and environmental perspective, it is therefore important to reduce the indoor and outdoor levels of these volatile organic compounds.

The new study, also published in the Feb. 16 Science, focused on volatile organic compounds, or VOCs, that are derived from petroleum.

In a new study published in the Proceedings of the National Academy of Sciences (PNAS), researchers from Innsbruck, Austria, present the world's first chemical fingerprint of urban emission sources of volatile organic compounds (VOCs).

Much of this haze is formed from volatile organic compounds, or VOCs, and fine particulate matter from tailpipe emissions.

As a result, this group succeeded in isolating ORs which respond to three types of volatile organic compounds (2 - pentanone, pyridine, 2 - butanone) respectively in urine samples from lung cancer patients.

Volatile organic compounds, carbon monoxide, and nitrogen oxides from Asian cars and industry mix in the atmosphere as they cross the Pacific Ocean and convert in sunlight into ozone, a main ingredient in smog, Jaffe explains.

Since 2006, he has worked with NOAA's air sampling system that uses glass flasks to collect atmospheric samples from 44 different sites around the world to track the annual increase of ethane and other so - called volatile organic compounds in the air.

Researchers from UC Davis and the California Institute of Technology conducted a series of experiments in a 24 cubic meter environmental chamber using the volatile organic compound toluene, which is emitted from motor vehicles and is an important SOA precursor.

Plants get their scents from volatile organic compounds, which easily turn into gases at ambient temperatures.

In the new study, led by Purdue biochemist Natalia Dudareva, the team looked for genetic changes as the plant developed from its budding stage, which had the lowest levels of volatile organic compounds, to its flower - opening stage, with the highest levels.

Ozone is produced by reactions involving nitrogen oxides (NOx), which come primarily from motor vehicle emissions, and volatile organic compounds resulting from industrial processes.

«We managed to present the first molecular evidence of a direct and ubiquitous source of ELVOCs arising from the oxidation of monoterpenes and other volatile organic compounds in the gas phase.»

Plants emit more volatile organic compounds at higher temperatures, which can increase ozone formation if mixed with pollutants from human sources.

Researchers from the Shanghai Cancer Institute and the US National Cancer Institute in Bethesda, Maryland, examined the volatile organic compounds given off by different oils at the high temperatures typically used for wok cooking.

Both are pollutants, but the first is dominated by sulphate emissions from coal burning power plants, the second from ozone precursors such as NOx, volatile organic compounds, and carbon monoxide mainly emitted from vehicles.

The PNNL study measured how, in the atmosphere, these aerosols interact with and mix with other volatile or semi-volatile organic compounds, the carbon - centric chemicals that evaporate from both natural and human - made sources.

Burkle and Runyon (2016) examine possible mechanisms underlying changes in pollinator behavior resulting from climate change and report that volatile organic compounds emitted by flowering plants are a primary pollinator attractant.

This session solicits presentations examining all aspects of air emissions and / or air quality or climate impacts of methane, volatile organic compounds, and nitrogen oxides from all stages of oil and gas development.

Drones launch from a tower in the Amazon rainforest to map and monitor the unique chemical signals emitted by trees known as volatile organic compounds (VOCs).

High levels of methane leakage from fracking have been found [163], as well as nitrogen oxides and volatile organic compounds [159].

The American Lung Association recommends limiting your exposure to ammonia and chlorine bleach, as well as volatile organic compounds (VOCs), which can be released from different cleaning products, such as some air fresheners, dry cleaning chemicals, and oven cleaners.

Researchers in Portugal have found that plants not only remove carbon dioxide from the air, but they can also filter out allergy aggravators like formaldehyde and volatile organic compounds (VOCs) like benzene.

As a volatile organic compound (VOC) emitted from building materials, furniture, paint, carpet and the like, propylene glycol can aggravate the immune system.

Let me help you visualize the process: steam from boiling water comes into contact with biomass (lavender flowers, sandalwood, cinnamon bark, etc.), softens it, and breaks up the volatile organic compounds (VOCs).

In a new study published in Environmental Science and Technology, the UC Boulder team measured levels of more than 100 different volatile organic compounds (VOCs) in the air, both from the roof of a research lab and from a mobile laboratory driving around Boulder.

Several plants are particularly good at removing volatile organic compounds (VOCs) from the environment.

Floors with low VOCs (volatile organic compounds) also support the effort to create a healthier environment and allow facility managers to not worry about venting the space because of fumes from the floor, its adhesive, finish, or paint applied for game lines or logos.

The new classroom spaces incorporated many green aspects in their design and construction ranging from the installation of energy efficient demand - controlled lighting and ventilation to the use of materials that are locally manufactured, high in recycled content, and low in volatile organic compounds (VOCs).

«If we eliminate plastic - part painting inside cars, there is the environmental benefit of eliminating (volatile organic compounds),» says Mulholland, adding the new - car smell Americans traditionally have liked is the result of off - gassing from formaldehyde, ethylbenzene and xylene from painted parts as well as carpet, seat fabric and seat foam.

The problem was (from my understanding) when manufacturers were required to go to water based paint to reduce volatile organic compounds (VOCs).

According to this video from Abe Books, «Chemists at University College, London have investigated the old book odor and concluded that old books release hundreds of volatile organic compounds into the air from the paper.

Keep in mind that most bamboo floors come from China and that the process to create bamboo floors uses a urea - formaldehyde (UF) adhesive and these UF resins emit volatile organic compounds (VOCs), which are harmful to air quality.

Another recent video by Clean Air Task Force is aimed at policy makers, and highlights the industry's release of 9 million tons of invisible pollutants every year, including footage of methane and volatile organic compounds shown escaping from a hydrocarbon storage tank.

Scientists think that the good stuff partly comes from breathing phytoncides like α - pinene and limonene, which are antimicrobial volatile organic compounds emitted from trees.

Volatile organic compounds (VOCs) were abundant, however their concentrations were less than emitted from the nonburning spill.

Various Updates In a move that environmental campaigners had sought for years (as had I), the Environmental Protection Agency has issued final rules that could substantially cut emissions of heat - trapping methane, smog - forming volatile organic compounds and toxic air pollutants such as benzene from new, rebuilt or modified oil and gas wells and other infrastructure and operations.

API reiterated its support for cost - effective regulation that target emissions of volatile organic compounds — which provide the co-benefit of methane emissions reductions — from natural gas operations.

Rob Virtue — The Express (UK)-- October 2, 2015 Research has identified a natural system where volatile organic compounds (VOC) are emitted into the air from the sea.

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).

Volatile organic compounds or VOCs are produced from solids and liquids in the form of a gas.