Sentences with phrase «aromatic oil compound»

Not exact matches

Among the greatest concerns is that compounds in oil called polycyclic aromatic hydrocarbons (PAHs) could have long - term sublethal effects on marine organisms that were at the peak of their spawning season when the spill began.

Mathur, who is with Johann Haltermann Ltd., in Houston, said those include PAHs — polycyclic aromatic compounds that exist naturally in the crude oil that becomes gasoline have been largely responsible for particulate matter emissions.

Because the process makes a blend of hydrocarbons, it does not lack the aromatic compounds that seal aircraft engines, like the biojet fuel produced from camelina oil by UOP.

He and his colleagues found that over the course of four months, 11,400 tons of particulate matter — including bitumen and cancer - causing polycyclic aromatic compounds — were deposited within 30 miles of oil sands upgrading facilities belonging to two of Canada's major oil sands development companies, Suncor and Syncrude.

The toxic compounds in oil vary, but the most worrisome are polycyclic aromatic hydrocarbons (PAHs), such as napthalenes, benzene, toluene and xylenes.

As crude oil burns it releases many toxic chemicals, including lead, carbon monoxide, polycyclic aromatic hydrocarbons and volatile organic compounds, says Bin Jalaludin at the University of New South Wales in Australia.

For starters, the Prestige spill — which was roughly one - tenth the size of the Deepwater Horizon spill — involved bunker oil, which contains different proportions of carcinogenic compounds (notably polycyclic aromatic hydrocarbons and benzene) than the crude oil spilled in the Gulf, according to Dr. Solomon.

The most abundant phenolic compound present in cloves» essential oil is eugenol, which is not only responsible for the aromatic scent of the flower buds, but it is also the main active ingredient behind their antimicrobial, antifungal, and analgesic properties.

Some toxic compounds found in oil such as polycyclic aromatic hydrocarbons have been shown to cause birth defects in humans; it is conceivable that they are responsible for some of the recent stillbirths in dolphins.»